Photochromism and Related Phenomena

The photochromism and thermochromism of methyl 12-aminodehydroabiatate Schiff bases have been studied in crystalline states, rigid glasses, and in solution. The E-Z photoisomerization of benzophenone-9-anthraldehyde 

Heilwei], R. Moore, and R. M. Hockstrasser, /. Oiem. Phys., 1984, 80, 201. Bomer and D. Schutte-Frohlinde, Chem. Phys. Lett., 1983, 101, 79. 

A review of chemiluminescent and bioluminescent methods in analytical chemistry has been given by Kricka and Thorpe. A two-phase flow cell for chemiluminescence and bioluminescencc has been designed by Mullin and Seitz. The chemiluminescence mechanisms of cyclic hydrazides, such as luminol, have been extensively analysed. Fluorescence quantum yields of some phenyl and phenylethynyl aromatic compounds in peroxylate systems have been determined in benzene. Excited triplet states from dismutation of geminate alkoxyl radical pairs are involved in chemiluminescence from hyponitrite esters. Ruorophor-labelled compounds can be determined by a method based on peroxyoxalate-induced chemiluminescence. Fluorescence and phosphorescence spectra of firefly have been used to identify the multiplicity of the emitting species. The chemiluminescence and e.s.r. of plasma-irradiated saccharides and the relationship between lyoluminescence and radical reaction rate constants have also been investigated. Electroluminescence from poly(vinylcarbazole) films has been reported in a series of four 

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