Journal of the American Chemical Society

An investigation of the ring size of cyclopolyphosphines

LR Smith, JL Mills

Index: Smith,L.R.; Mills,J.L. Journal of the American Chemical Society, 1976 , vol. 98, p. 3852 - 3857

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Citation Number: 49

Abstract

Abstract: Several alkyl-, aryl-, and perfluoroalkylcyclopolyphosphines have been examined by NMR, ir-Raman, and mass spectroscopy. It is found that three-, four-, and five-membered rings can be distinguished in solution by observing the 3'P NMR spectrum while decoupling all other nuclear spins. The decoupled 31P NMR spectrum of a four-membered ring collapses to a sharp singlet, while spectra of the three-and five-membered rings yield ...