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Vyučující
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Teichmanová Kateřina, Ing. Ph.D.
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Obsah předmětu
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1st Absorption of light, light and energy of excitation, Beer-Lambert law, electronically excited states, electronic transitions. 2nd Franck-Condon principle, absorption bands, characteristics of absorption spectra. Principle and technics of measurement of absorption spectra. 3rd Photophysical processes of excited state deactivation, relationship between absorbance and fluorescence (quantum yield of fluorescence), Taylor's polynomial for f(x)=1-exp(-x), principle and technics of measurement of fluorescence emission and fluorescence excitation spectra. 4th Practical demonstration of measurement of absorption spectrum of toluene and perylene and measurement of fluorescence spectra of perylene in cyclohexane, example on application of absorption detection in HPLC analysis. 5th Lifetime, energy transfer. 6th Photochemical transformations, quantum yield (description of monomolecular reaction from singlet, quantum yield of luminescence). 7th Electron transition, radiometry and actinometry (radiometers, actinometers, principle of method of measurement). 8th Actinometry (examples of actinometers, potassium ferrioxalate), radiation sources. 9th Practical demonstration of actinometric measurement. 11th Introduction to organic photochemistry, classification of photochemical reaction, Photochemical dissociation, Solvent effect in product formation, pericyclic reactions, photodissociation of halogens, photochemical fragmentation of aldehydes and ketones (Norrish reaction of Ist and IInd type). 12th Reactions Paterno-Buchi, photo redox processes, photoreduction of carbonyle compounds. 13th Electronic states of oxygen, photooxidation with triplet oxygen, photooxidation with singlet oxygen.
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Studijní aktivity a metody výuky
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Monologická (výklad, přednáška, instruktáž)
- Účast na výuce
- 28 hodin za semestr
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Výstupy z učení
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The student will study excitation and deactivation of molecules (light, electronic excited states, absorption spectrum, Jablonski diagram, effect of order of pi,pi* and n,pi* states on luminescence, transfer of electron excitation energy, measurement of absorption/luminescent spectra), kinetics of photo-physical and photochemical processes, theoretical organic photochemistry, photo-isomerization and rearrangement, and photochemical reactors.
Student získá přehled o základních fotochemických pojmech a principech.
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Předpoklady
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Základní znalosti organické a fyzikální chemie.
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Hodnoticí metody a kritéria
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Ústní zkouška
zkouška
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Doporučená literatura
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Braun A. M., Maurette M.T., Oliveros E. Photochemical Technology. 1991.
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Jan Kopecký. Organic Photochemistry, A Visual Approach. 1991.
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Turro N. J. Modern Molecular Photochemistry, 1978 Benjamin, Menlo Park..
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