| Autor: |
Faulhaber, Ann Elise, Gascooke, Jason R., Hoops, Alexandra A., Neumark, Daniel M. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 5/28/2006, Vol. 124 Issue 20, p204303, 8p, 1 Diagram, 1 Chart, 3 Graphs |
| Abstrakt: |
The photodissociation dynamics of the diazomethyl (HCNN) radical have been studied using fast radical beam photofragment translational spectroscopy. A photofragment yield spectrum was obtained for the range of 25 510–40 820 cm-1, and photodissociation was shown to occur for energies above 25 600 cm-1. The only product channel observed was the formation of CH and N2. Fragment translational energy and angular distributions were obtained at several energies in the range covered by the photofragment yield spectrum. The fragment translational energy distributions showed at least two distinct features at energies up to 4.59 eV, and were not well fit by phase space theory at any of the excitation energies studied. A revised C–N bond dissociation energy and heat of formation for HCNN, D0(HC–NN)=1.139±0.019 eV and ΔfH0(HCNN)=5.010±0.023 eV, were determined. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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