THE STRUCTURES AND VIBRATIONAL FREQUENCIES OF THE NNO ANALOGS NPO AND PNO AND THEIR PROTONATED FORMS

The surprising relative stability of PNO compared to NPO cannot be explained by a single configuration molecular orbital (MO) model. However, the MO model can be used to understand the pattern of stability among the protonated isomers HPNO+, PNOH+, HNPO+, and NPOH +, and perhaps to explain important aspects of the general chemistry of multiple bonds between first and second row atoms. © 1990 American Institute of Physics.