Photochemistry and Spectroscopy

Recommended Prerequisites

Completed 1st cycle.  

Teaching Methods

Classical lectures with presentation of the matters by the teacher and their discussion with the students, in the theoretical classes. Practical classes for execution of laboratorial work and hands-on practical problems’ solving.

Final seminar for presentation and discussion of the results obtained by the student in a small project developed during the semester.  

Learning Outcomes

The course intends to provide advanced knowledge on photochemistry and spectroscopy (in particular vibrational spectroscopy) and aims (i) providing access to know-how for interpretation of photochemical/photophysical and spectroscopic  phenomena, including currently used experimental techniques and strategies, (ii) making possible to apply this knowledge in different areas, others than photochemistry and spectroscopy, but still related to these later, and (iii) promoting competences that allow the students to use the learnt subjects as a basis for development of new projects.   

Work Placement(s)

No

Syllabus

General concepts in photochemistry.

Molecular Photophysics. Absorption and emission. Fuorescence and phosphorescence. Non-radiative transitions.

Organic Photochemistry. Photodissociation, photoisomerization and fotoelimination. Photochromism.

Inorganic photochemistry. Photo-redox reactions. Photochemistry of metal complexes.

Experimental methods in photochemistry. Stationary and dynamic methods. Single photon counting. Flash photolysis. Photoacoustic calorimetry.

Photobiology.

Fundamentals of spectroscopy.

Molecular symmetry. Point groups. Analysis of symmetry.

Rotational spectroscopy. Selection rules. Rotational and roto-vibrational spectra.

Vibrational spectroscopy. Wilson’s FG Method. IR and Raman spectroscopies.

Advanced techniques in vibrational spectroscopy: spectroscopy in cryogenic matrices and beams. Resonance Raman.

NMR spectroscopy. Nuclear magnetic moment. Shielding constants and chemical shifts. Spin-spin coupling. Introduction to the pulsed techniques.  

Head Lecturer(s)

Rui Fausto Martins Ribeiro da Silva Lourenço

Assessment Methods

Assessment
Project: 25.0%
Laboratory work or Field work: 25.0%
Exam: 50.0%

Bibliography

  -Andrew Gilbert & Jim Baggot, “Essentials of Molecular Photochemistry”, Blackwell Scientific Publications, Oxford, 1991.

-Becker, R. S. “Theory and interpretation of Fluorescence and Phosphorescence”. Wiley Interscience, John Wiley & Sons, N. Y., 1969

-J.R. Lakowicz, “Principles of Fluorescence Spectroscopy”, Plenum Press, NY, 2nd edn., 1998

-N. Turro, “Modern Molecular Photochemistry”, University Science Books, Sausalito Ca., 1991

-P. Suppan “Chemistry and Light”, Royal Society of Chemistry, 1993.

-P.W. Atkins, “Physical Chemistry, Oxford University Press de preferência a edição actualizada).

-L.A. Woodward:  Introduction to the Theory of Molecular Vibrations and Vibrational Spectroscopy.

-H.D. Burrows e M.M. Pereira: Química: Síntese e Estrutura – Uma Abordagem Prática, Escolar Editora.