Nuclear quadrupole resonance of charge transfer complexes. I. The trihalide ions

Abstract

The nuclear quadrupole resonance frequencies of the halogen atoms in the trihalide ions 1₃ and Ibr₂ in some of their crystalline salts have been measured. The results have been correlated with a simple LOAD-MO bonding description and the charge distributions in the ions have been calculated. These ions can be regarded as charge-transfer complexes as described by Mulliken. The effect of the crystal field on the charge distribution in the I₃ ion has been investigated.