PMID: 9417957Jan 7, 1998Paper

Spectroscopy of NbO: Characterization of the Doublet Manifold

Journal of Molecular Spectroscopy
O LaunilaU Wahlgren

Abstract

Doublet bands of NbO in the near infrared region have been observed in emission with FTS techniques using an electrodeless 2450 MHz discharge as a source. Transitions involving the vibrational levels v = 0-4 of a low-lying a2Delta state of configuration sigma2delta and four additional doublet states (c2Pi, d2Deltai, e2Phi, and f2Pii) have been recorded at high resolution. Furthermore, a 2Sigma state, assigned as b2Sigma-, has been observed through the c2Pi (v = 0) --> b2Sigma- (v = 0, 1) transitions in the 1.6 &mgr;m region. Rotational analyses of the doublet bands have been performed. Most of the excited doublet states lie only slightly above or below the well-known B4Pi state. The density of states is fairly high immediately above B4Pi, and characterizations of some of the states in this region involve difficulties. A currently unanalyzed band, centered at 11 820 cm-1, has been preliminarily attributed to the A4Pi --> X4Sigma- (0, 0) transition. Nuclear hyperfine effects are barely detectable in orbitally degenerate states of the doublet manifold at Doppler-limited resolution, while the b2Sigma- state of configuration sigmadelta2 shows partly resolved magnetic hyperfine structure (b = -0.08191 cm-1). Large-scale all-electron ...Continue Reading

Citations

Nov 5, 2014·The Journal of Chemical Physics·Lan Cheng, Jürgen Gauss
Dec 16, 1998·Journal of Molecular Spectroscopy·S WallinA G Taklif
Nov 30, 2019·Physical Chemistry Chemical Physics : PCCP·Emily E Claveau, Evangelos Miliordos
Jun 18, 2011·Chemical Reviews·Takahito Nakajima, Kimihiko Hirao

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