Theoretical characterization of the lowest three potential surfaces of HNO. I. The potential for H atom addition to NO.

The results of complete active space SCF/multireference contracted CI(CASSCF/CCI) calculations with large atomic natural orbital (ANO) basis sets are presented for the H + NO region of the lowest three potential surfaces of HNO (1A’, 3A‘, and 1A‘). The calculations focus on the minimum energy path for H atom addition to the N end of NO and on the equilibrium geometry region of HNO and HON. [ABSTRACT FROM AUTHOR]