An ab initio investigation of N2⋯CO+

Abstract
Recent experiments have indicated that the interaction between CO+ and N2 is fairly strong; certainly stronger than would be expected from electrostatic considerations alone. We present calculations using ab initio molecular orbital theory that support the experimental findings, suggesting a binding between CO+ and N2 of the order of 100 kJ mol–1. However, most of this binding is the result of long-range interactions and there is little evidence for the formation of an incipient ‘chemical bond’.

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