The a3Σ+u(a11u → X1Σ+g(X0+g) Transition of Bi2

✍ Scribed by R. Breidohr; K.D. Setzer; O. Shestakov; E.H. Fink; W. Zyrnicki

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 576 KB
• Volume: 166
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1191

✦ Synopsis

The (a^{3} \Sigma_{\mathrm{u}}^{+}\left(a_{1} 1_{\mathrm{u}}\right) \rightarrow X^{1} \Sigma_{\mathrm{B}}^{+}\left(X 0_{\mathrm{B}}^{+}\right))near-infrared transition of (\mathrm{Bi}{2}), which was recently observed in the thermal emission spectrum of bismuth vapor by Barrow et al. (Chem. Phys. Lett. 214, 293-296, 1993), has been found in the spectrum of the chemiluminescence from the reaction of bismuth vapor and microwave-discharged oxygen in a fast-flow system. The spectrum consisting of 21 short sequences of red-degraded bands was measured at high resolution with a Fouriertransform spectrometer. Vibrational and rotational analysis of the bands have yielded molecular constants of the (a{1} 1_{v}) and (X 0_{8}^{+})states which are in good agreement with the data of Barrow (e t a l). (G) 1994 Academic Press, Inc.