Collisional deactivation of the c$sup 1$$pi$ and A$sup 3$$pi$ states of imino radicals
The photolysis of ammonia-d/sub o/ and -d/sub 3/ was studied at each of the three wavelengths, Lyman- alpha (121.6 nm), Kr resonance lines (123.6, 116.5 nm), and Xe resonance lines (147.0, 129.6 nm). For Lyman alpha , Kr resonance lines, and 129.6 nm, NH(c/sup 1/ pi ) emission was observed. In the Kr sensitization, both NH(c/sup 1/ pi ) and (A/sup 3/ pi ) emission s were detected. In the direct photolysis, the effects of Xe, Kr, Ar, He, H/sub 2/, and N/sub 2/ as foreign gases were studied. Xe and Kr caused the intersystem crossing of NH and ND(c/sup 1/ pi yields A/sup 3/ pi ) to occur. Ele ctronic quenching of NH or ND(c/sup 1/ pi ) was also observed for Xe, Kr, H/sub 2/, and N/sub 2/. The cross sections for intersystem crossing and quenching are presented. H/sub 2/, N/ sub 2/, He, and Ar caused no intersystem crossing of NH and ND(c/sup 1/ pi ). Neither He nor Ar quenched the emission from NH and ND(c/sup 1/ pi ). (auth)
- Research Organization:
- Tokyo Inst. of Tech.
- NSA Number:
- NSA-29-002474
- OSTI ID:
- 4408818
- Journal Information:
- J. Chem. Phys., v. 59, no. 2, pp. 648-653, Journal Name: J. Chem. Phys., v. 59, no. 2, pp. 648-653; ISSN JCPSA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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