A heavy-current positive-column discharge through helium containing traces of nitrogen and hydrogen (or deuterium) gives intense emission spectra of NH, ND, NH+ and ND+. Rotational analyses have been made of thirty bands in the regions 2450-3020Å and 4300-5590Å from photographs taken in a 21ft. concave grating spectrograph. In NH+, Feast's analysis of bands at λλ2886, 2730 has been revised, and new analyses of 2∑+- 2π bands at λλ2965, 2812, 2683 and 2599, a 2∆-2π band at λ4348, and 2∑--2π bands at λλ5348 and 4628 are presented. Similarities to CH are noted, and the molecular states are correlated with those of the united atom and the dissociation products. Morse potential curves have been drawn on the assumption that Do°(Ne) = 4.65 eV.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:622985 |
| Date | January 1967 |
| Creators | Whittaker, Frank Lawrence |
| Publisher | Imperial College London |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Source | http://hdl.handle.net/10044/1/17625 |
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