Chemical applications of nuclear quadrupole resonance spectroscopy. Part V. The trichlorocyclopropenium ion

Abstract

The ³⁵Cl pure quadrupole resonance spectrum of the chlorine atoms in the trichlorocyclopropenium ion has been measured and the asymmetry parameter determined by the effect of a weak magnetic field on the spectrum of the polycrystalline sample. These data indicate that the carbon–chlorine bond in this compound has 16%π-character and that somewhere between one half and three quarters of the excess of positive charge on the carbon atoms has been transferred to the chlorine substituents.