Vibrational and rotational energy disposal in the CN fragment has been investigated for the dissociations H(D)CN -H(D) f CN(B '1') a: several wavelengths in the vacuum ultraviolet. A simple gobal model has been applied to these results to elucidate features of ?he dissoci-itive potential surfaces. A
The predissociation dynamics of the Ã1A″ state of HCN and DCN
✍ Scribed by Yen-Chu Hsu; Mark A. Smith; Stephen C. Wallace
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 498 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Level-resolved lifetimes of the first escitcd state (x 'A") of hydrogen cyanide (HCN and DCN). obtained using the tcchnique of vxuum uhrwiolet (VUV) laser-induced fluorescence. xe reported_ Appreci;lble prcdissociation rates are seen from low rovibronic levels (us = O-3, uj = O-1 ,J' = O-1 2, K' = O-2) of the ;i 'A" state.
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The effect of intramolecular dynamics on state-selected photolysis of trans-DON0 is probed through measurements on the OD fragment ejected by the A state with one and two quanta of energy in the -N=O stretching vibration uZ. The fragment in the latter case is rotationally hotter, more polarized at h