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Comparative Electron Density Studies of the Phosphorus-Sulphur Bonding and of the Extent of the Aromatic System in A 1,3,2-Benzodithlaphosphenlum Cation and the Related 2-Phenyl-1,3,2-Benzodithiaphosphole

✍ Scribed by Cameron, T. Stanley; Borecka, Bozena; Linden, Anthony


Book ID
126630030
Publisher
Taylor and Francis Group
Year
1992
Tongue
English
Weight
234 KB
Volume
65
Category
Article
ISSN
1042-6507

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## Abstract Substituent chemical shifts for the title systems have been determined at infinite dilution in CDCl~3~ from a study of 40 derivatives. An excellent correlation is found between the __ortho__ effect of substituents in the thiophene ring and the corresponding effects in thiophene itself,