CASSCF and CAS+1+2 studies on the singlet potential energy surface for the reaction CH+NO

Author: Ding Y.-Q.   Fang D.-C.   Liu R.-Z.  

Publisher: Taylor & Francis Ltd

ISSN: 1362-3028

Source: Molecular Physics, Vol.103, Iss.6-8, 2005-03, pp. : 767-774

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Abstract

CAS(12,11)/cc-pVDZ and CAS(12,11)/aug-cc-pVTZ calculations have been employed to investigate the reaction of CH?+?NO???products on the singlet energy surface and the possible reaction channels have been explored. Three intermediates, such as cis-HCON, trans-HCON and linear HCNO, are formed when methylidyne radical CH(X 2 ?) collides with nitrogen monoxide NO( 2 ?). After a series of the rearrangement and fission, the final stable products yield. In order to get more accurate energetics, single-point CAS(10,10)?+?1?+?2//CAS(12,11)/cc-pVDZ calculations have been performed for comparison.