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The use of doped crystals as a medium for the study of excited state bimolecular interactions

โœ Scribed by Z. Ludmer; G.E. Berkovic; L. Zeiri

Book ID
104205220
Publisher
Elsevier Science
Year
1987
Tongue
French
Weight
943 KB
Volume
43
Category
Article
ISSN
0040-4020

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โœฆ Synopsis

A molecular crystal is an attractive medium for the study of excited state intermolecular interactions since the ground state positions of interacting molecules may be accurately determined.

Besides excimer interactions in pure crystals it is possible to study (in doped crystals) exciplex interactions between host and guest molecules, and even excimer formation between two adjacent guest molecules.

This approach has been utilized to observe excimer formation by several anthracene derivatives introduced as dopants in pyrene crystals.

Photochemical reactions of some of these exciplexes and excimers are discussed.

Excimer forming crystals are considered to be good candidates for excited state structure determination by means of pulsed x-ray diffraction.

๐Ÿ“œ SIMILAR VOLUMES

Bimolecular interactions in the excited
Bimolecular interactions in the excited state. Hydroxy and aminobenzophenone as sensitizers and quenchers of biacetyl phosphorescence
โœ G. Favaro ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 438 KB

which includes a self-quenching of benzophenone triplet and n back transfer from the acceptor to the donor. The kinetic rate constants for these IWO proccsscs have been determined along with the triplet lifetimes and yields of para-amino and pun-hydrosybcnzophenone in benzene at infinite dilution.