The d1+-c1Π system of NH

Narasimham, N. A. ; Krishnamurty, G. (1966) The d1+-c1Π system of NH Proceedings of the Indian Academy of Sciences, Section A, 64 (2). pp. 97-110. ISSN 0370-0089

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The singlet systems of NH have been excited in a mildly condensed transformer discharge through flowing ammonia gas. The 0-0 bands, 2530Å of d1+-c1Π and 3240Å of c1Π-a1Δ systems, appear with considerable intensity compared to the 4502Å band of the c1Π-b1+ system. Besides the 2530Å bands, two weaker bands at 2683Å and 2516Å are also excited. They are photographed in the second order of a Jarrell Ash 3.4 m. grating spectrograph at a dispersion of 2.6Å/mm. Rotational analysis of the two weaker bands show that they belong to the d1+-c1Π system and further supports their assignment as the 0–1 and 1-1 bands.

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