19F nuclear magnetic resonance of the hexafluoroacetone adducts of phosphetans. The relative apicophilicities of groups
Abstract
The variable-temperature 19F n.m.r. spectra of the hexafluoroacetone adducts of a series of 1-substituted phosphetans give data on the relative apicophilicities of different groups which are interpreted in terms of electronegativity and back-bonding factors.
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