75042 - Organometallic Complexes for Optoelctronics

Learning outcomes

At the end of the course the student has obtained the theoretical basis necessary to design and undertake the synthesis of principal molecular building blocks used in optoelectronics. He is also knowledgeable regarding the most recent applications of metallo-organic complexes in optoelectronics, such as OLED, bio-diagnostics and home lighting. Moreover, the use of late-transition metal complexes as photosensitizers for visible-light based redox organic reactions will be discussed.

Course contents

Prerequisites : knowledge of basic organic chemistry and in particular, synthesis and reactivity of common organic functional groups. It is recommended that the exam of the foundation organic chemistry course of this degree course (“Organic Chemistry of Molecular Materials and Laboratory”) be successfully completed

Course contents:

1. Organic components of an OLED device

1.1. Single-layer OLED configuration

1.2. Multiple-layer OLED configuration

1.3. Electron-transporting molecular organic materials and their synthesis

1.4. Hole-transporting molecular organic materials and their synthesis

1.5. Electronic transitions in transition metal complexes

1.6. Ancillary ligands in transition metal complexes

1.6.1 Tuning towards red light emission

1.6.2 Tuning towards blue light emission (pyrazolic and benzoimidazolic ligands)

 

2. Metal catalyzed C-H bond activation

2.1. Definitions of the aliphatic and arylic C-H bond activation reaction

2.2. Mechanisms of the C-H bond activation reactions (Aromatic electrophilic substitution or oxidative insertion)

2.3. Lithiation of aromatic rings with ortho-orientating groups

2.4. Mercuration and stannylation reactions of aromatic compounds

2.5 Ir-catalyzed borylation of aromatic compounds

2.6 Transition metal catalyzed silylation of aromatic compounds

2.7 Ruthenium catalyzed C-C bond formation reactions

2.8 Gold-catalyzed alkene and alkyne hydroarylation reactions

2.9 Palladium-catalyzed alkene and alkyne hydroarylation reactions

2.10 Cross-coupling reactions through C-H bond activation reactions

 

3. Coordination complexes that exhibit fluorescence at room temperature

3.1 Chrome(III) complexes

3.2 Copper(I) complexes

3.3 Rhenium(I) complexes

3.4 Osmium(II) complexes

3.4.1 Synthesis of pyridylpyrazolic ligands

3.5 Ir(III) complexes

3.5.1 Synthesis of homoleptic complexes

3.5.2 fac/mer isomers

3.5.3 Synthesis of heteroleptic complexes

3.5.4 Properties and applications of heteroleptic complexes

3.5.5 Blue-light emmiting Ir(III) complexes

3.5.6 Fluoro-substituted phenylpyridinic ligands

3.5.7 Methods for obtaining “Sky-blu” emmitions

3.5.8. Carbenic ligands

3.6 Pt(II) complexes

3.6.1 Synthesis of homoleptic complexes

3.6.2 Synthesis of heteroleptic complexes

 

4. Bio-imaging with coordination complexes

4.1 General aspects of bio-imaging

4.2. Uptake properties of transition complexes

4.3 Photophysical criteria
     4.4 Design and synthesis of d6 (Ir(III)) complexes for cell-imaging
     4.5 Biotinylation proccesses

 

5. WOLED coordination complexes

5.1 Requirements for home lighting

5.2 Performance descriptors of lighting systems

5.3 Types of organic/organometallic systems with white-light emissions

5.4 Two-component multiple-layer WOLED

5.5 Three-component multiple-layer WOLED

5.6 Two-component single-layer WOLED

5.7 Three-component single-layer WOLED

5.8 Single polymeric component WOLED

 

6. Redox photocatalysis in organic synthesis

Teaching methods

Theoretical lessons 36 hs (projection of slides).

Attendance : Attendance to the lectures is not obligator.

Assessment methods

The final examination aims to ascertain the student's acquired skills, and consists of a verbal examination lasting around 45 minutes.

This verbal examination starts by discussing a recent publication related to the course contents, given to the candidate one week before the examination. This serves as a starting point to discuss the topics explained in the cours.

Teaching tools

36 hours class-room teaching

Office hours

See the website of Marco Bandini