- Docente: Claudio Degli Esposti
- Credits: 6
- SSD: CHIM/02
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
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Corso:
Second cycle degree programme (LM) in
Physics of the Earth System (cod. 8626)
Also valid for First cycle degree programme (L) in Chemistry and Materials Chemistry (cod. 8006)
Learning outcomes
At the end of the course, the student knows how radiation can interact with molecules. He knows how rotational, vibrational, electronic and NMR spectra can be used to determine molecular properties and for analytical applications.
Course contents
Population of molecular energy levels: Boltzmann equation.
Interaction between electromagnetic radiation and molecules: transition moment, selection rules, intensity of transitions.
Main spectral regions : radiofrequency, microwave, infrared, visible-ultraviolet.
Rotational spectroscopy of linear molecules. Determination of structural parameters.
Vibrational and ro-vibrational spectroscopy of diatomic molecules. Determination of force constants. Vibrational spectroscopy of polyatomic molecules: from normal modes to localized vibrations. Analytical applications of IR spectroscopy.
Absorption electronic spectroscopy. Morse potential function. Effects of molecular vibrations. Frank-Condon principle. Derivation of dissociation energies. Emission spectroscopy: fluorescence.
Scattering and Raman effect. Vibrational Raman spectroscopy. IR active and Raman active vibrational modes.
Nuclear Magnetic Resonance spectroscopy (NMR) : quantum mechanical introduction and the origin of chemical shifts for H-1 NMR signals.
Readings/Bibliography
P.W. Atkins, J. de Paula : “Chimica Fisica” (5th italian editio, from 9th english edition) – Zanichelli.
Chapters 12, 13, 14 (Spectroscopy 1, 2, 3).
Auxiliary documents from AMS Campus (italian version only).
Teaching methods
Lessons in the classroom (4 CFU), exercises (1 CFU), and laboratory experiments (1 CFU), made by 2-4 students groups.
Assessment methods
Oral examination at the end of the semester, and written laboratory reports during the semester.
Teaching tools
Projectors for transparencies and slides in the classroom.
Several spectrometers and personal computers in the laboratory.
Office hours
See the website of Claudio Degli Esposti