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Potential energy calculations and packing analysis for molecular motions in reactive diacyl peroxide crystals

✍ Scribed by Angelo Gavezzotti; Riccardo Bianchi


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
351 KB
Volume
128
Category
Article
ISSN
0009-2614

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✦ Synopsis


The molecular motions of beruoyloxyl radicals in crystals of diacyl peroxides are analyzed by packing energy calculations and by the packing density method. The results are discussed against available experimental evidence on the photolysis of these crystals. It is found that the experimentally observed motions have low energy barriers, and that easy rotation from the standpoint of packing energy corresponds to motion towards empty space. The rotatitinis calculated to be impossible for a dichloro derivative, so that it is predicted that this compound should react by a different pathway in the solid state.