IC115 Calling Diradicals to Order

Faculty of Science
Spring 2014
Extent and Intensity
1/0/0. 1 credit(s) (plus extra credits for completion). Recommended Type of Completion: z (credit). Other types of completion: k (colloquium).
Teacher(s)
Prof. Jakob Wirz (lecturer), prof. RNDr. Petr Klán, Ph.D. (deputy)
Guaranteed by
prof. RNDr. Petr Klán, Ph.D.
Department of Chemistry – Chemistry Section – Faculty of Science
Supplier department: Department of Chemistry – Chemistry Section – Faculty of Science
Course Enrolment Limitations
The course is offered to students of any study field.
Course objectives
Chemistry is about rearranging atoms – the chemist says: about breaking bonds and forming new ones. Molecular species near the cusp of such transitions have one bond less than is predicted by the standard rules of valence (this is Jerry Berson’s definition of a diradical). In ground state reactions such high-energy intermediates are usually avoided (Woodward–Hoffmann rules or Michael Dewar’s Bell–Evans–Polanyi principle). Not so in photochemistry. The properties of many diradical intermediates have been elucidated by time-resolved techniques in the last decades. Various examples will be presented and used to derive general rules allowing an understanding of their properties and of their response to substituent and medium effects in order to predict the outcome of reactions proceeding via diradicals.
Language of instruction
English
Further comments (probably available only in Czech)
The course is taught only once.
The course is taught in blocks.
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