PHOTOCHEMISTRY AND PHOTOPHYSICS OF COORDINATION COMPOUNDS AND APPLICATIONS
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- Versione italiana
- Academic year
- 2018/2019
- Teacher
- MIRCO NATALI
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- CHIM/03
Training objectives
- The course aims at providing the student with an in depth knowledge on the photophysical and photochemical properties of coordination compounds and their application in several research fields such as solar energy conversion, development of light-emitting devices (LED), sensors, development of molecular devices and machines, optical and magnetic memories, diagnosis and therapy, etc. At the end of the course the student will be able to predict the photochemical properties and behavior of coordination compounds, given a certain metal center and ligand combination, and then cast hypothesis in relation to their possible, potential applications. Also, the student will be able to understand experimental spectroscopic data arising from the photochemical characterization of coordination compounds.
Prerequisites
- Fundamentals of inorganic chemistry and photochemistry.
Course programme
- The course consists of 36 hours frontal lecture in which the following topics will be covered.
Group theory, molecular symmetry, and point groups. Ligand field theory and molecular orbital (MO) theory applied to coordination compounds. Ligand field transitions. Correlation diagrams, Orgel diagrams, and Tanabe-Sugano diagrams. Charge transfer transitions. Main electronic transitions of coordination compounds and related spectral characteristics in absorption spectroscopy. Lowest-lying excited states of metal complexes. Spectral features in emission.
Systematic analysis of coordination compounds of relevance in the field of photochemistry.
Polypyridine ruthenium(II) complexes and related properties. Chemiluminescence and electrochemiluminescence. Ruthenium(II) complexes with extended polycyclic aromatic ligands, photophysical properties and their reactivity with DNA. Polypyridine osmium(II) complexes and related properties. Iridium(III) coordination complexes, cyclometalated complexes and their applications in luminescent devices. Rhenium(I) complexes and related properties. Aggregation-induced emission enhancement.
Platinum(II) complexes and photophysical properties. Platinum-platinum interactions.
Coordination complexes based on first-row transition metals. Iron(II) polypyridine complexes and their properties, spin-crossover (SCO), iron-based photosensitizers. Polypyridine chromium(III) complexes and related properties. Polypyridine copper(I) complexes. Application in luminescent devices.
Lanthanide-based coordination complexes, luminescent properties and their applications.
Macrocyclic aromatic compounds as ligands, metallo porphyrins, regular porphyrins and irregular porphyrins, photochemical properties and applications. Didactic methods
- The course consists of 36 hour frontal lecture covering the topics reported above and will be delivered taking advantage of presentation slides.
Learning assessment procedures
- The aim of the final examination is to ascertain whether the student has acquired the knowledge and abilities reported above. The exam consists of an oral assessment with 3 questions. The student will be allowed to start the discussion from a topic of choice. The exam will be considered passed only if the student has answered correctly and exhaustively to at least 2 questions.
Reference texts
- The presentation slides used by the teacher will be available to all students. Further insights on the topics covered can be found in:
“Chemical Applications of Group Theory”, F. A. Cotton, J. Wiley and sons.
“Inorganic Chemistry: Principles, Structure and Reactivity”, J. E. Huheey, E. A. Keiter, R. L. Keiter, Harper Collins College Publisher.
“Photochemistry and Photophysics of Coordination Compounds” Top. Curr. Chem., vol. 280-281, Springer 2007.
"Photochemistry and Photophysics, Concepts, Research, Applications" V. Balzani, P. Ceroni, A. Juris, Wiley-VCH,Verlag 2014
"Photochemistry of Polypyridine and Porphyrin Complexes", K. Kalyanasundaram, Academic Press 1992.
