The c 1$\pi$-b 1$\Sigma$+ band system of NH and ND
- 1 September 1968
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 1 (5) , 977-1010
- https://doi.org/10.1088/0022-3700/1/5/327
Abstract
High-dispersion emission spectrograms of the λ 4502 band of NH and the λ 4484 band of ND have been obtained from a positive column discharge through a mixture of helium, nitrogen and hydrogen (or deuterium). New bands at λ 5254 (NH) and λ 5015 (ND) belong to the same system, which is assigned to the c 1π-b 1Σ+ transition. Rotational analysis gives the following constants for b 1Σ+ (in cm-1): Be αe De ωe ωexe NH 16.7326 0.6049 16.54 × 10-4 3354.7 74.4 ND 8.9472 0.2383 4.64 × 10-4 2451.3 39.7 The capital Lambda doubling in c 1π is compared with calculations which assume `pure precession' with b 1Σ+ and d 1Σ+.Keywords
This publication has 9 references indexed in Scilit:
- New emission band systems of the NH+ moleculeCanadian Journal of Physics, 1968
- The v= 0 sequence in the d1 +-c1 system of NH and NDProceedings of the Physical Society, 1967
- Thed 1 Σ +−c 1 Π system of NHProceedings of the Indian Academy of Sciences - Section A, 1966
- The lower electronic levels of the radicals CH, CH2, CH3, NH, NH2, BH, BH2and BH3Molecular Physics, 1962
- An Emission Band System Attributed to the Molecule NH^{+}.The Astrophysical Journal, 1951
- Chemical Compounds in the Sun.The Astrophysical Journal, 1945
- The λ 4502 Band of NHProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1935
- The Interpretation of Band Spectra Part III. Electron Quantum Numbers and States of Molecules and Their AtomsReviews of Modern Physics, 1932
- -Type Doubling and Electron Configurations in Diatomic MoleculesPhysical Review B, 1931