Abstract

The 35Cl NQR spectra and ab initioquantum-chemical calculations show that chlorophosphoranes C6F5PCl4 and (C6F5)2PCl3 have a trigonal bipyramidal structure with the equatorial location of the pentafluorophenyl groups. This conclusion agrees with the rule of location of substituents in the molecule taking into account their electronegativity and refutes the existing concepts concerning the structure of the above mentioned chlorophosphoranes.

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