Electronic excited states and electronic transitions in polyatomic molecules. Photophysical relaxation processes: intramolecular and intermolecular mechanisms, the role of the solvent. Photochemical processes. Nature and properties of the different molecular electronic excited states. Molecular energy transfer. The change of molecular properties in the different excited states. Photochemical properties in different sciences.
- A. Gilbert and J. Baggott, Essentials of Molecular Photochemistry, Blackwell, London, 1991. - N.J. Turro, Modern molecular Photochemistry, University Science Books, 1991. - Wayne and Wayne, Photochemistry, Oxford University Press. - I. Baraldi, "La Luminescenza - Elementi di fotofisica molecolare", Bononia University Press, 2007. - M. Montalti, A. Credi, L. Prodi, M.T. Gandolfi, "Handbook of Photochemistry" (3rd Edition), CRC Press, 2006.
Learning Objectives
General introduction to photochemistry. Relevant photochemical and photophysical processes. Experimental methods in photochemistry. Elementary photochemical processes in molecular systems. Photochemistry in nature and technological applications. Knowledge in interpretation of photochemical and photophysical processes on the basis of molecular energetic and to evaluate dynamics of molecules in excited states.
Electronic states and electronic transitions in polyatomic molecules. Photophysical processes in molecular excited states: intramolecular and intermolecular effects, role of the solvent. The diagram of Jablonski and its correlation with absorption and emission spectra. Photochemistry form excited states. The different nature of the electronic excited states. Potential surfaces for the breaking of the different chemical bonds. Excited states and potential surfaces for the breaking of double bonds and carbonilic groups. Excimers and exiplexes. Molecular energy transfer. Photochemistry in solution: the role of diffusion and the long range coupling mechanisms. Photochemistry at work.