J. Phys. Chem. 1993,97, 5599-5606
5599
Quantitative Spectroscopy of the NH Transitions c( llI,vSl)-a( lA,v54) and c(‘II,e l ) - b ( lE+,r12) with HNJ Laser Photolysis as the NH(a) Source W. Hack’ and Tb. Mill Max-Planck- Institut flir Strbmungsforschung, Bunsenstrasse IO, 3400 Gbttingen, Germany Received: September 8, 1992; In Final Form: March 8, I993
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For the photodissociation HN3(z) hu(248 nm) NH(a,u”) N2(X), the population ratios of the various states of NH(a,u”) were determined. For u ” = 4, a lower limit of NH(a,u”=4)/NH(a,OIu”l4) 1 0.002 was found. The population ratios NH(a,u”)/NH(a,Olu”l4) determined previously remain: 0.32,0.47,0.17, and 0.038 for u” = 0, 1, 2, and 3, respectively. The relative transition probabilities for NH(c,u’=O,l) NH(a,O,
