Coordination compounds of olefins with anhydrous silver salts. IV. Complexes with some endocyclic monoolefins

Abstract

A study has been made of the changes in the infrared and nuclear magnetic resonance (n.m.r.) spectra of cyclopentene, cyclohexene, cycloheptene, and cis-cyclooctene, and of their 1-methyl-substituted analogues upon formation of the silver tetrafluoroborate complexes, AgBF₄•2olefin. Based on the perturbation of the double bond stretching frequency in the olefin, the order of decreasing strength of the silver ion – olefin interaction is cyclopentene > cyclohexene > cis-cyclooctene ≈ cycloheptene.