Ethylenic compounds photochemistry

Hancock and coworicers have studied the photochemistry of a series of compounds in which the -B=N- functional group is the essential chromophore " The -B=N- linkage in aminoboranes is analogous to the isoelectronic (-C=C-) ethylenic linkage in molecules studied extensively by organic photochemists. Many aminoboranes absorb radiation in the near ultraviolet Fluorescence spectra have been reported for a number of compounds with the general formula... 

Numerous reviews have appeared which are relevant to aromatic photochemistry and are also of general interest and application these include accounts of the chemistry of excited-state complexes by Davidson, the photochemical electron-transfer reactions of ethylenes and related compounds by Mattes and Farid, photosolvolyses and photoreactions involving carbo-cations by Cristol and Bindel, conformational flexibility and photochemistry by Wagner, asymmetric photochemistry in solution by Rau, and the photochemistry of iminium salts and related heteroaromatic systems by Mariano." The photochemistry of fragrance materials has been considered by Shibamoto and Mihara, and in their second article they deal with aromatic compounds and phototoxicity. ... 

Photolysis of Fe(CO)5 in the presence of olefins leads to formation of olefin complexes which exhibit catalytic properties. The complex [Fe(cyclooctene)2 ( 0)3] catalyzes isomerization of olefins in alkene solutions. The compound Fe(C2H4)(CO)4 which is formed in the gas phase by photolysis of Fe(CO)5 and ethylene catalyzes hydrogenation of 2114. Photochemistry of the following dinuclear complex of iridium(I) is interesting ... 

The isomerization of phenyl-f-butyl ethylene (Eq. 16.20) illustrates a very powerful feature of photochemistry, seen throughout the field, not just in cis-trans isomerization. The cis compound is much less stable than the trans due to steric repulsions between the phenyl and... 

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