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.