The N–H link as a ‘probe’ for the electronic structure of the phosphorus–nitrogen bond in aminophosphines. An infrared spectroscopic study

Abstract

Mechanical anharmonicity and hydrogen bond donor ability of the NH group in 26 aminophosphines X₂P–NHR have been measured; large variations have been observed, which are related to the effect of substituents X on the s character of the nitrogen part of the NH bond orbital.