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Assimo Maris

Professoressa associata

Dipartimento di Chimica "Giacomo Ciamician"

Settore scientifico disciplinare: CHIM/02 CHIMICA FISICA

Pubblicazioni

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Pubblicazioni antecedenti il 2004

79, Laboratory rotational spectrum of acrylic acid and its isotopologues in the 6-18.5 GHz and 52-74.4 GHz frequency ranges, Calabrese C, Vigorito A, Feng G, Favero LB, Maris A, Melandri S, Geppert WD, Caminati W, JOURNAL OF MOLECULAR SPECTROSCOPY, 2014, 295, 37-43, DOI:10.1016/j.jms.2013.11.003

Abstract: In order to facilitate the detection of acrylic acid in space, for which a possible mechanism of formation is proposed, we extended the measurements of the rotational spectrum of this molecule to the 6-18.5 GHz (time domain Fourier transform) and 52-74.4 GHz (frequency domain) ranges in supersonic expansions. 77 new lines were assigned to the s-cis conformer and 83 new lines to the s-trans conformer. In addition, the rotational spectra of the three single 13C isotopologues have been measured in natural abundance for both conformers. High resolution measurements of the carboxylic deuterated isotopologues allowed for the determination of the deuterium nuclear quadrupole coupling constants. All the spectroscopic experimental parameters were compared to the ones obtained with quantum chemical methods at the MP2(fc)/aug-cc-pVTZ and B3LYP/aug-cc-pVTZ levels of calculation.

78, Keto-enol tautomerism and conformational landscape of 1, 3-cyclohexanedione from its free jet millimeter-wave absorption spectrum, Calabrese C, Maris A, Evangelisti L, Favero LB, Melandri S, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2013, 117, 13712-13718, DOI: 10.1021/jp4078097

Abstract: The free jet millimeter-wave absorption spectrum of 1,3-cyclohexanedione has been investigated in the 59.6-74.4 GHz frequency range, and the rotational spectra of two conformational species, the chair-diketo and boat-diketo, and probably one excited vibrational state belonging to the chair-diketo form have been assigned. Quantum chemical calculations, performed at the B3LYP/6-311++G** and MP2/6-311++G** levels, were used to characterize the potential energy surface minima. The potential energy surface related to the interconversion of the observed diketonic species was modeled at the DFT level.

77, Pyridine-CF4: A Molecule with a Rotating Cap, Maris A, Favero LB, Velino B, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2013, 117, 11289-11292, DOI: 10.1021/jp409173v

Abstract: The rotational spectrum of pyridine-CF4 has been investigated by molecular beam Fourier transform microwave spectroscopy in a supersonic expansion. The CF4 moiety is located as a cap over the pyridine nitrogen, and the two parts are freely rotating with respect to each other. For this reason, in a first approximation, in the m = 0 state only the pyridine ring is rotating along the a-axis, and the value of rotational constant A ' is nearly the same of the constant A of isolated pyridine. The N...C(CF4) distance is 3.372(1) Å. The dissociation energy has been estimated, from the centrifugal distortion, to be ca. 10 kJ/mol.

76, Fluorine Substitution Effects on Flexibility and Tunneling Pathways: The Rotational Spectrum of 2-Fluorobenzylamine, Calabrese C, Maris A, Evangelisti L, Caminati W, Melandri S, CHEMPHYSCHEM, 2013, 14, 1943-1950, DOI: 10.1002/cphc.201300121

Abstract: The effect of ring fluorination on the structural and dynamical properties of the flexible model molecule 2-fluorobenzylamine has been studied by rotational spectroscopy in free-jet expansion and quantum chemical methods. The complete potential energy surface originating from the flexibility of the aminic side chain has been calculated at the B3LYP/6-311++G** level of theory and the stable geometries were also characterized with MP2/6-311++G**. The rotational spectra show the presence of two of the predicted four stable conformers: the global minimum (I), in which the side chain's dihedral angle with the phenyl plane is almost perpendicular, is stabilized by an intramolecular hydrogen bond between the fluorine atom and one hydrogen of the aminic group; and a second conformer II ( E II - E I ˜5 kJ?mol-1 ) in which the dihedral angle is smaller and the amino group points towards the aromatic ortho hydrogen atom. This conformation is characterized by a tunneling motion between two equivalent positions of the amino group with respect to the phenyl plane, which splits the rotational transition. The ortho fluorination increases, with respect to benzylamine, the tunneling splitting of this motion by four orders of magnitude. The motion is analyzed with a one-dimensional flexible model, which allows estimation of the energy barrier for the transition state as approximately 8.0 kJ?mol-1 .

75, Raman and SERS study on atrazine, prometryn and simetryn triazine herbicides, Bonora S, Benassi E, Maris A, Tugnoli V, Ottani S. and Di Foggia M*, JOURNAL OF MOLECULAR STRUCTURE, 2013, 1040, 139-148, DOI: 10.1016/j.molstruc.2013.02.025

Abstract: In the present study, we considered the Raman spectra of atrazine, prometryn and simetryn, in the solid form and in polar and apolar solvents, extending the investigation in the very diluted aqueous solutions (ppm) range by using the SERS technique. We performed theoretical calculations at the B3LYP/aug-cc-pVQZ level on the three triazines, alone and in solution with polar and apolar solvents. An excellent agreement between theoretical and experimental frequencies was reached, with differences lying within few wavenumbers. The small differences observed can be ascribed to the solid crystalline phase and can be caused by local deviations in the uniformity of the crystalline field or to a coupling with lattice vibrations. Also the theoretical and experimental peak intensities well agreed and in most cases lied within ±10%, the differences being ascribed to the local non-homogeneity of dielectric properties in the crystal. Moreover, this behavior confirmed the rigidity of the molecules and that their structure was not involved during the solution process. The theoretical SERS spectra at B3LYP/6-311+G(d,p) level of triazines bound to an Ag2 metal cluster offered an acceptable qualitative agreement with the experimental ones, suggesting that the stronger interaction site of triazines with Ag2 was on the less sterical hindered aromatic nitrogen atom, namely forming the N6-(Ag2) molecular complex with atrazine, and the N2-(Ag2) or N4-(Ag2) molecular complexes with simetryn and prometryn. The agreement between calculated and experimental SERS spectra was not as good as that observed for the Raman spectra of pure compounds, but the trend of the theoretical spectra offered a useful guideline for the comprehension of the interaction sites and of the structural modification after adsorption on silver particles.

74, Detection and characterization of impurities in commercial products with Fourier transform microwave spectroscopy, Velino B, Favero LB, Ottaviani P, Maris A, Caminati W, ANALYST, 2013, 138, 1959-1961, DOI: 10.1039/c3an36652a

Abstract: The rotational signatures of methyl pyruvate as an impurity have been accidentally found and its rotational spectrum was assigned while recording the microwave spectrum of a 98% Sigma-Aldrich sample of methyl (S)-(-)-lactate with the pulsed jet Fourier transform microwave technique.

73, Rotational spectrum and internal dynamics of methylpyruvate, Velino B, Favero LB, Ottaviani P, Maris A, Caminati W*, JOURNAL OF PHYSICAL CHEMISTRY A, 2013, 117, 590-593, DOI: 10.1021/jp310074z

Abstract: The rotational spectra of five isotopologues (normal and all monosubstituted 13C species) of methylpyruvate have been measured with the pulsed jet Fourier transform microwave technique. Rotational transitions are split into quintets due to the internal rotations of the two methyl groups. The corresponding barriers to internal rotation have been determined to be V3(H3C-O) = 4.883(8) kJ mol-1 and V3(H3C-C) = 4.657(8) kJ mol-1, respectively. Information on the skeletal heavy atom structure has been obtained from the 15 available rotational constants.

72, Proton transfer in homodimers of carboxylic acids. The rotational spectrum of the dimer of acrylic acid., Feng G, Favero LB, Maris A, Vigorito A, Caminati W, Meyer R, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134, 19281-19286, DOI: 10.1021/ja309627m

Abstract: The dimer of acrylic acid can exist in two forms, depending on the entgegen or zusammenorientations of the two allyl groups. The latter one (zusammen) has a permanent value of the µb dipole moment component, which allowed measuring its pulsed jet Fourier transform microwave (MW) spectrum. From the tunneling splitting, originating in the concerted proton transfer of the two carboxylic hydrogen atoms and measured for four isotopologues of such a bimolecule, we could determine the barrier and dynamics of the proton transfer.

71, Effects of Fluorine Substitution on the Shape of Neurotransmitters: the Rotational Spectrum of 2-(2-Fluorophenyl)Ethanamine, Melandri S, Merloni A, Maris A, CHEMPHYSCHEM, 2012, 13, 3504-3509, DOI: 10.1002/cphc.201200528

The effects of fluorination on the conformational landscape of adrenergic neurotransmitters is exemplified trough the conformation analysis of 2-(2-F-phenyl)ethanamine (2FPEA) carried out by microwave spectroscopy and quantum chemical calculations. Five different conformers of the nine possible stable ones for 2FPEA are observed by molecular-beam Fourier-transform microwave spectroscopy. Their unambiguous identification is possible by comparing the experimental rotational constants and the quadrupole coupling constants with those obtained by quantum chemical calculations carried out at the MP2/6-311++G(d,p) level of theory. The relative abundances of the conformers in the jet are estimated from the relative intensities in the observed spectra. A qualitative agreement between experimental and theoretical energies was found, and the remaining deviations are explained by population transfer taking place during the adiabatic expansion. The energy landscape, which also takes the interconversion barriers between the conformers into consideration, is thus characterized completely by the strong interplay of quantum chemical methods and precise experimental data. Significant changes in energy and structure of the 2FPEA conformers are found compared to those obtained for the prototype molecule 2-phenylethanamine (PEA).

70, Broad band free jet absorption mm-wave spectrum of 3-phenyl-1-propanol, Maris A, Ottaviani P, Giuliano B M, Melandri S, Caminati W, JOURNAL OF MOLECULAR SPECTROSCOPY, 2012, 280, 145-149, DOI: 10.1016/j.jms.2012.07.016

Abstract: The rotational broad band spectra of the OH and OD isotopologues of 3-phenyl-1-propanol have been investigated by broad band free-jet absorption millimeter-wave spectroscopy in the 60.0-78.3 GHz frequency range. The spectra of the GGt and of the TGt conformers, where the three labels refer to the torsions of the benzyl, phenylethyl and hydroxyl groups, respectively, have been assigned. Ab initio calculations, performed at the MP2/6-311++G** level, were used to characterize the minima of the conformational potential energy surface.

69, Shapes and Internal Dynamics of the 1:1 Adducts of Ammonia with trans and gauche Ethanol: A Rotational Study, Giuliano B M, Favero L B, Maris A, Caminati W, CHEMISTRY - A EUROPEAN JOURNAL, 2012, 18, 12759-12763, DOI: 10.1002/chem.201201664

Abstract: Two 1:1 adducts of ammonia with ethanol have been characterized by using pulsed-jet FT microwave spectroscopy. They are formed with two different (trans and gauche), stable conformers of ethanol. Several internal-dynamics effects are reflected in the features of the rotational spectra. The trans complex shows the tunneling effects owing to internal rotation of both ammonia and the methyl group. The rotational transitions of the gauche species exhibit a small splitting that is related to tunneling through the potential-energy barrier between the two equivalent minima.

68, Soft X-ray photoemission spectroscopy of selected neurotransmitters in the gas phase, Maris A, Melandri S, Evangelisti L, Caminati W, Giuliano BM, Plekan O, Feyer V, Richter R, Coreno M, Prince KC, JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2012, 185, DOI: 244-251, 10.1016/j.elspec.2012.06.007

Abstact: The valence molecular orbitals and core levels of tyramine, tryptamine and tryptophol in the gas phase have been studied using X-ray photoelectron spectroscopy (XPS) and theoretical methods. The energies of the outer valence region spectrum are found to be in agreement with previously reported He I spectra, while new data on the inner valence molecular orbitals are reported. The structures in the carbon, nitrogen and oxygen core level spectra of these molecules have been identified and assigned. These compounds are characterised by conformers with hydrogen bonding in which the p systems of the phenol and indole groups act as hydrogen acceptors, but a spectroscopic signature of this hydrogen bond was not observed. This is in contrast with our previous spectra of amino acids, where conformers with specific hydrogen bonding showed strong effects in core level spectra. We attribute the difference to the weaker strength of the p-hydrogen bonding

67, Rotational Spectrum and Internal Dynamics of Tetrahydrofuran-Krypton, Gou Q, Feng G, Evangelisti L, Maris A, Marchini M, Velino B, Caminati W, CHEMPHYSCHEM, 2012, 13, 221-225, DOI: 10.1002/cphc.201100673

Abstract: The rotational spectrum of the tetrahydrofuran-krypton van der Waals complex has been investigated by pulsed-jet Fourier transform microwave spectroscopy. The spectra of the 84Kr and 86Kr isotopologues have been assigned and the krypton atom is located nearly over the oxygen atom, almost perpendicular to the COC plane. Each rotational transition is split into two component lines due to, according to the observed Coriolis coupling term between the tunneling states, the residual pseudorotational effects of the ring in the complex. The splitting between the two vibrational sublevels is 87.462(2) and 87.062(2) MHz for the 84Kr and 86Kr isotopologues, respectively. These splittings have been used to determine the barrier to inversion, B2=67 cm-1. The dissociation energy has been estimated to be 3.7 kJ mol-1 from centrifugal distortion effects.

66, How Trifluoroacetone Interacts with Water , Favero LB, Evangelisti L, Maris A, Vega-Toribio A, Lesarri A, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 115, 9493-9497, DOI: 10.1021/jp112015r

Abstract: The rotational spectra of five isotopologues of the molecular adduct 1,1,1-trifluoroacetone-water have been assigned using pulsed-jet Fourier-transform microwave spectroscopy. All rotational transitions appear as doublets, due to the internal rotation of the methyl group. Analysis of the tunneling splittings allows one to determine accurately the height of the 3-fold barrier to internal rotation of the methyl group and its orientation, leading to V3=3.29 kJ·mol-1 and <(alpha,i)=67.5°, respectively. The water molecule is linked to the keton molecule on the side of the methyl group through a O-H...O hydrogen bond and a C-H...O intermolecular contact, lying in the effective plane of symmetry of the complex.

65, Conformational Equilibria in Diols: The Rotational Spectrum of Chiral 1, 3-Butandiol, Velino B, Favero LB, Maris A, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 115, 9585-9589, DOI: 10.1021/jp200187f

Abstract: The rotational spectra of five conformers of 1,3-butandiol have been measured by pulsed jet Fourier transform microwave spectroscopy. All of them are stabilized by an internal hydrogen bond and all of them have a GG' or a G'G arrangement of the two hydroxyl oxygens, which means that both oxygen atoms are on the same side with respect to the C1C2C3 plane. Apart from the spectroscopic constants, the relative abundances in the supersonic expansion are provided.

64, Almost free methyl top internal rotation: Rotational spectrum of 2-butynoic acid, Ilyushin V, Rizzato R, Evangelisti L, Feng G, Maris A, Melandri S, Caminati W, JOURNAL OF MOLECULAR SPECTROSCOPY , 2011, 267, 186-190, DOI: 10.1016/j.jms.2011.03.028

Abstract: The rotational spectrum of 2-butynoic acid was measured by pulsed supersonic-jet Fourier transform microwave spectroscopy in the frequency range from 6 to 18 GHz. Rotational lines have been measured for the m=0 and m=1 torsional states and analyzed using the rho-axis-method. The features of the spectrum illustrate the pattern for an almost free internal rotation of the terminal methyl group that is characterized by a very low barrier V3 = 1.0090(4) cm-1. The results are compared with the supporting ab initio calculations for this molecule.

63, Raman and SERS study on cimetidine-metal complexes with biomedical interest, Bonora S, Di Foggia M, Tugnoli V, Righi V, Benassi E, Maris A, JOURNAL OF RAMAN SPECTROSCOPY, 2011, 42, 612-620, DOI: 10.1002/jrs.2775

Absract: Cimetidine (cim) is one of the most potent histamine H2-receptor antagonists for inhibiting excessive acid secretion caused by histamine; it has been hypothesized that the therapeutic effects can be related to its interactions with metal ions. Raman spectra of the solid cim with Co(II), Cu(II), Ni(II) and Zn(II) metal complexes show that they can adopt two different structures: one is octahedral and the other, with Zn(II), is probably tetrahedral. The octahedral structure appears to be distorted both by the different metal ions as well as by the different anion present. The study was extended to very dilute solutions (ppm range) by using the surface-enhanced Raman scattering (SERS) technique, mimicking the physiological concentrations of cim and its metal complexes. SERS spectra suggest that, upon the binding of cim to silver colloids, the formation of stable 1:2 cim-metal complexes is excluded, the formation of 1:1 adduct appearing more probable; in this product the metal reaches its total coordination shell by complexion with water molecules. To better explain the binding mechanism of cim to a metal (Ag) surface, we performed theoretical B3LYP calculations on cim alone as well as on cim bonded to an Ag2 metal cluster in presence of water, observing a sufficiently good agreement between experimental and theoretical wavenumbers.

62, Tunnelling splittings in the rotational spectrum of 3-fluoro-benzylalcohol, Tang SY, Xia ZN, Maris A, Caminati W, CHEMICAL PHYSICS LETTERS, 2010, 498, 52-55, 10.1016/j.cplett.2010.08.066

61, Rotational and Core Level Spectroscopies As Complementary Techniques in Tautomeric/Conformational Studies: The Case of 2-Mercaptopyridine, Melandri S, Evangelisti L, Maris A, Caminati W, Giuliano BM, Feyer V, Prince KC, Coreno M, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132, 10269-10271, 10.1021/ja104484b

60, The free jet microwave spectrum of 2-phenylethylamine-water, Melandri S, Maris A, Giuliano BM, Favero LB, Caminati W, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12, 10210-10214, 10.1039/c003513k

59, Tunneling motions in the Ar-CHF3 complex, Coudert LH, Caminati W, Maris A, Ottaviani P, JOURNAL OF MOLECULAR SPECTROSCOPY, 2010, 261, 18-27, 10.1016/j.jms.2010.02.003

58, The rotational spectrum of tertiary-butyl alcohol , Cohen EA, Drouin BJ, Valenzuela EA, Woods RC, Caminati W, Maris A, Melandri S. , JOURNAL OF MOLECULAR SPECTROSCOPY, 2010, 260, 77-83, 10.1016/j.jms.2009.11.010

57, Features of the C-H---N weak hydrogen bond and internal dynamics in pyridine-CHF3 , Favero LB, Giuliano BM, Maris A, Melandri S, Ottaviani P, Velino B, Caminati W., CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16, 1761-1764, 10.1002/chem.200902852

56, Rotational spectrum of trifluoroacetone , Evangelisti L, Favero LB, Maris A, Melandri S, Vega-Toribio A, Lesarri A, Caminati W., JOURNAL OF MOLECULAR SPECTROSCOPY, 2010, 259, 65-69, 10.1016/j.jms.2009.11.004

55, Weak hydrogen bonds in sigma-1, 4-difluorobenzene-ammonia: a rotational study , Giuliano BM, Evangelisti L, Maris A, Caminati W., CHEMICAL PHYSICS LETTERS, 2010, 485, 36-39, 10.1016/j.cplett.2009.12.025

54, The double donor/acceptor role of the NH3 group: microwave spectroscopy of the aminoethanol-ammonia molecular complex, Melandri S, Maris A, Favero LB, MOLECULAR PHYSICS, 2010, 108, 2219-2223, 10.1080/00268976.2010.502137

53, Pure rotational spectrum and model calculations of anisole-ammonia , Giuliano BM, Maris A, Melandri S, Caminati, W., JOURNAL OF PHYSICAL CHEMISTRY A, 2009, 113, 14277-14280, 10.1021/jp9026964

52, Apparent conflicting indications on the conformation of dimethylether-argon from the rotational spectra of the d(6) and 13C species , Maris A, Ottaviani P, Melandri S, Caminati W, Costantini A, Lagana A, Pirani F., JOURNAL OF MOLECULAR SPECTROSCOPY, 2009, 257, 29-33, 10.1016/j.jms.2009.06.009

51, Rotational spectrum of the mixed van der Waals triad pyridine-Ar-Ne, Melandri S, Giuliano BM, Maris A, Evangelisti L, Velino B, Caminati W., CHEMPHYSCHEM, 2009, 10, 2503-2507, 10.1002/cphc.200900366

50, Millimeter wave free-jet spectrum of vinyl acetate, Velino B, Maris A, Melandri S, Caminati W., JOURNAL OF MOLECULAR SPECTROSCOPY, 2009, 256, 228-231, 10.1016/j.jms.2009.04.013

49, Shape of biomolecules by free jet microwave spectroscopy: 2-amino-1-phenylethanol and 2-methylamino-1-phenylethanol, Melandri S, Ragno S, Maris A., JOURNAL OF PHYSICAL CHEMISTRY A, 2009, 113, 7769-7773, 10.1021/jp902784h

48, Adducts of NH3 with the conformers of glycidol: a rotational spectroscopy study, Giuliano BM, Melandri S, Maris A, Favero LB, Caminati W., ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48, 1102-1105, 10.1002/anie.200805104

47, A rotational study of the molecular complex tert-butanol-NH3, Giuliano BM, Castrovilli MC, Maris A, Melandri S, Caminati W, Cohen EA, CHEMICAL PHYSICS LETTERS, 2008, 463, 330-333, 10.1016/j.cplett.2008.08.071

46, Molecular recognition of chiral conformers: a rotational study of the dimers of glycidol , Maris A, Giuliano BM, Bonazzi D, Caminati W, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130, 13860-13861, 10.1021/ja8057887

45, Microsolvation of aromatic heterocycles with water: the driving force from free jet rotational spectroscopy and model electrostatic calculations, Melandri S, Maris A, Miazzi M, Zerbetto F, CHEMPHYSCHEM, 2008, 9, 1303-1308, 10.1002/cphc.200800106

44, Methylsalicylate: a rotational spectroscopy study, Melandri S, Giuliano BM, Maris A, Favero LB, Ottaviani P, Velino B, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111, 9076-9079, 10.1021/jp0723970

43, Noncovalent interactions and internal dynamics in dimethoxymethane-water, Favero LB, Giuliano BM, Melandri S, Maris A, Caminati W, CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13, 5833-5837, 10.1002/chem.200700076

42, Dynamical behavior and dipole-dipole interactions of tetrafluoromethane-water, Caminati W, Maris A, Dell'Erba A, Favero PG, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45, 6711-6714, 10.1002/anie.200602000

41, Relative strengths of the O-H---Cl and O-H---F hydrogen bonds, Caminati W, Melandri S, Maris A , Ottaviani P, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45, 2438-2442, 10.1002/anie.200504486

40, Ab initio and Empirical Atom Bond Formulation of the interaction of the dimethylether-Ar system, Costantini A, Laganà A, Pirani F., Maris A, Caminati W, LECTURE NOTES IN COMPUTER SCIENCE, 2005, 3480, 1046-1053, 10.1007/11424758_109

39, Water-ketones hydrogen bonding: the rotational spectrum of cyclobutanone-water, Melandri S, Maris A, Giuliano BM, Caminati W, JOURNAL OF CHEMICAL PHYSICS, 2005, 123, 64304-64304, 10.1063/1.2078767

38, Structure, dipole moment and large amplitude motions of 1-benzofuran, Maris A, Giuliano BM, Melandri S, Ottaviani P, Caminati W, Favero LB, Velino B, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2005, 7, 3317-3322, 10.1039/b507795h

37, CH---O and CH---F links form the cage structure of dioxane-trifluoromethane, Favero LB, Giuliano BM, Melandri S, Maris A, Ottaviani P, Velino B, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109, 7402-7404, 10.1021/jp0527599

36, Free-jet rotational spectrum and tunneling motion in difluoromethane-krypton, Maris A, Melandri S, Caminati W, Rossi I, CHEMICAL PHYSICS LETTERS, 2005, 407, 192-198, 10.1016/j.cplett.2005.03.074

35, Free and pulsed jet rotational spectra and van der Waals motions of ethanol-argon, Maris A, Caminati W, Velino B, Andrews CM, Howard BJ, CHEMICAL PHYSICS LETTERS, 2004, 399, 39-46, 10.1016/j.cplett.2004.09.131

34, Atropisomerism in bisphenols: free jet absorption millimeter wave study of 2, 2'-biphenol, Ottaviani P, Maris A, Caminati W, JOURNAL OF MOLECULAR STRUCTURE, 2004, 695, 353-356, 10.1016/j.molstruc.2003.12.048

33, On the conformational equilibrium of glycolamide: a free jet millimetre-wave spectroscopy and computational study, Maris A, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6, 2611-2616, 10.1039/b401081g

32, Intramolecular hydrogen bonds and conformational properties of biogenic amines: a free-jet microwave study of tyramine, Melandri S, Maris A, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6, 2863-2866, 10.1039/b404153d

31, Conformation of chiral molecules: free jet rotational spectrum of 2-phenylpropanal, Maris A, Caminati W, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5, 2795-2798, 10.1039/b303121g

30, Free jet rotational spectrum of propylene oxide-krypton and modelling and ab initio calculations for propylene oxide-rare gas dimers, Blanco S, Melandri S, Maris A, Caminati W, Velino B, Kisiel Z , PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5, 1359-1364, 10.1039/b300386h

29, Rotational spectrum, dynamics, and bond energy of the floppy dimethylether-neon van der Waals complex, Maris A, Caminati W, JOURNAL OF CHEMICAL PHYSICS, 2003, 118, 1649-1652, 10.1063/1.1533012

28, Rotational spectrum of propylene oxide-neon, Blanco S, Maris A, Melandri S, Caminati W, MOLECULAR PHYSICS, 2002, 100, 3245-3249, 10.1080/0026897021015791 2

27, The proton donor/acceptor double role of the peptidic group: free jet rotational spectrum and computational study of lactamide, Maris A, Melandri S, Caminati W, Favero PG, CHEMICAL PHYSICS , 2002, 283, 111-118, 10.1016/S0301-0104(02)00499-8

26, Free jet absorption millimetre-wave spectrum and model calculations of phenol-water, Melandri S, Maris A, Favero PG, Caminati W, CHEMICAL PHYSICS , 2002, 283, 2185-192, 10.1016/S0301-0104(02)00600-6

25, Free jet rotational spectrum and Ar inversion in the dimethyl ether-argon complex, Ottaviani P, Maris A, Caminati W, Tatamitani Y, Suzuki Y, Ogata T, Alonso JL, CHEMICAL PHYSICS LETTERS, 2002, 361, 341-34830, 10.1016/S0009-2614(02)00958-2

24, Pure rotational spectrum of 2-pyridone-water and quantum chemical calculations on the tautomeric equilibrium 2-pyridone-water/2-hydroxypyridine-water, Maris A, Ottaviani P, Caminati W, CHEMICAL PHYSICS LETTERS, 2002, 360, 155-160, 10.1016/S0009-2614(02)00785-6

23, The most stable conformer of the propylene oxide-argon complex, Blanco S, Maris A, Millemaggi A, Caminati W, JOURNAL OF MOLECULAR STRUCTURE, 2002, 612, 309-313, 10.1016/S0022-2860(02)00101-1

22, The internal rotation and inversion pathways of the NH2 group inequatorial amino cyclobutane, Favero LB, Velino B, Maris A, Caminati W, JOURNAL OF MOLECULAR STRUCTURE, 2002, 612, 357-367, 10.1016/S0022-2860(02)00145-X

21, An investigation of the quadrupole coupling of two N nuclei in the complex pyrimidine-Ar by molecular beam Fourier transform microwave spectroscopy, Maris A, Lopez JC, Alonso JL, Caminati W, JOURNAL OF MOLECULAR STRUCTURE, 2002, 612, 393-399, 10.1016/S0022-2860(02)00148-5

20, Weak, improper, C-O---H-C hydrogen bonds in the dimethyl ether dimer, Tatamitani Y, Liu BX, Shimada J, Ogata T, Ottaviani P, Maris A, Caminati W, Alonso JL, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124, 2739-2743, 10.1021/ja0164069

19, Intramolecular hydrogen bonds and conformational properties of benzylamine, Melandri S, Maris A, Favero PG, Caminati W, CHEMPHYSCHEM, 2001, 2, 172-177, 10.1002/1439-7641(20010316)2:3<172::AID-CPHC172>3.0.CO;2-V

18, Free-jet rotational spectrum and ab initio calculations of formanilide, Ottaviani P, Melandri S, Maris A, Favero PG, Caminati W, JOURNAL OF MOLECULAR SPECTROSCOPY, 2001, 205, 173-176, 10.1006/jmsp.2000.8243

17, Vibrational relaxation in pyridine upon supersonic expansion, Maris A, Favero LB, Danieli R, Favero PG, Caminati W, JOURNAL OF CHEMICAL PHYSICS, 2000, 113, 8567-8573, 10.1063/1.1318224

16, Rotational spectrum, dynamics and bond energy of 2, 5-dihydrofuran-krypton van der Waals complex, Velino B, Melandri S, Maris A, Favero PG, Caminati W, MOLECULAR PHYSICS, 2000, 98, 1919-1924, 10.1080/00268970009483395

15, Conformational equilibrium and potential energy surface of 1-fluorobutane by microwave spectroscopy and ab initio calculations, Favero LB, Maris A, Esposti AD, Favero PG, Caminati W, Pawelke G, CHEMISTRY-A EUROPEAN JOURNAL, 2000, 6, 3018-3025, 10.1002/1521-3765(20000818)6:16<3018::AID-CHEM3018>3.0.CO;2-L

14, Free jet rotational spectrum and ab initio calculations of acetanilide, Caminati W, Maris A, Millemaggi A, NEW JOURNAL OF CHEMISTRY, 2000, 24, 821-824, 10.1039/b005410k

13, Conformation and stability of adducts of sulfurated cyclic compounds with water: rotational spectrum of tetrahydrothiophene-water, Sanz ME, Lopez JC, Alonso JL, Maris A, Favero PG, Caminati W, JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103, 5285-5290, 10.1021/jp991002c

12, Investigation of the rotational spectrum of pyrimidine from 3 to 337 GHz: molecular structure, nuclear quadrupole coupling, and vibrational satellites, Kisiel Z, Pszczolkowski L, Lopez JC, Alonso JL, Maris A, Caminati W, JOURNAL OF MOLECULAR SPECTROSCOPY , 1999, 195, 332-339, 10.1006/jmsp.1999.7830

11, Complexes of neon with nonaromatic ring molecules: rotational spectrum, dynamics, and bond energy of 2, 5-dihydrofuran-neon, Maris A, Favero PG, Dell'Erba A, Caminati W, JOURNAL OF CHEMICAL PHYSICS, 1999, 110, 8976-8979, 10.1063/1.478815

10, Bond energy of complexes of neon with aromatic molecules: rotational spectrum and dynamics of pyridine-neon , Maris A, Caminati W, Favero PG, CHEMICAL COMMUNICATIONS, 1998, , 2625-2626, 10.1039/a807289b

9, Intermolecular hydrogen bonding between water and pyrazine , Caminati W, Favero LB, Favero PG, Maris A, Melandri S, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1998, 37, 792-795, 10.1002/(SICI)1521-3773(19980403)37:6<792::AID-ANIE792>3.0.CO;2-R

8, Free jet absorption millimeter wave spectrum and van der Waals potential energy surface of the 2, 3-dihydrofuran-argon adduct, Maris A, Melandri S, Caminati W, Favero PG, Makarewicz J, JOURNAL OF CHEMICAL PHYSICS, 1997, 107, 5714-5719, 10.1063/1.474331

7, Millimeter-wave absorption free jet spectrum, barriers to internal rotation, and torsional relaxation in p-anisaldehyde, Melandri S, Maris A, Favero PG, Caminati W., Meyer R., JOURNAL OF MOLECULAR SPECTROSCOPY, 1997, 185, 374-383, 10.1006/jmsp.1997.7391

6, Rotational spectrum of 1, 3-dioxolane-argon, Maris A, Fantoni AC, Caminati W, Favero PG, JOURNAL OF MOLECULAR SPECTROSCOPY, 1997, 184, 145-149, 10.1006/jmsp.1997.7311

5, Observation of the rotational spectra of van der Waals complexes by free jet absorption millimeter wave spectroscopy: pyridine-argon, Melandri S, Maccaferri G, Maris A, Millemaggi A, Caminati W, Favero PG, CHEMICAL PHYSICS LETTERS, 1996, 261, 267-271, 10.1016/0009-2614(96)00977-3

4, Free jet absorption millimeter wave spectrum of benzophenone, Maris A, Melandri S, Caminati W, Favero PG, CHEMICAL PHYSICS LETTERS, 1996, 256, 509-512, 10.1016/0009-2614(96)00467-8

3, Microwave spectrum of the axial conformer and potential energy function of the ring puckering motion in fluorocyclobutane, Caminati W, Favero LB, Maris A, Favero PG, JOURNAL OF MOLECULAR STRUCTURE, 1996, 376, 25-32, 10.1016/0022-2860(95)09046-0

2, Free jet absorption millimeter-wave spectrum of thioglycolic acid, Caminati W, Maris A, Favero PG, JOURNAL OF MOLECULAR SPECTROSCOPY, 1996, 175, 215-216, 10.1006/jmsp.1996.0024

1, Free jet absorption millimeter-wave spectrum of benzene sulfonyl chloride , Caminati W, Maris A, Millemaggi A, Favero PG, CHEMICAL PHYSICS LETTERS, 1995, 243, 302-307, 10.1016/0009-2614(95)00810-Q

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