Journal of Physical Chemistry A, Vol.103, No.50, 11109-11114, 1999
Thermochemistry of N3O2-
N3O2- has been formed by the addition of 0.4 Torr of N2O to a flowing afterglow apparatus. Energy-resolved collision-induced dissociation of this anion gives NO- as the dominant product. O- and N2O- are also observed, and there is indirect evidence for electron detachment. The NO--N2O bond energy at 0 K is measured to be 0.76 +/- 0.10 eV. Ab initio calculations at the MP2/aug-cc-pVDZ level give a bond strength of 0.78 eV, in good agreement with the experimental results. The predominance of NO- over N2O- is consistent with a metastable N2O- anion. The results suggest that dissociative photodetachment of N3O2-gives highly internally excited products.
Keywords:COLLISION-INDUCED DISSOCIATION;PHOTOELECTRON-SPECTROSCOPY;ELECTRON-AFFINITIES;RATE CONSTANTS;CLUSTER IONS;BASIS-SETS;NO;N2O;ENERGY;DETACHMENT