The Infrared Spectrum of Isotopomers of the TeH Radical, Observed by CO Laser Magnetic Resonance

✍ Scribed by D.A. Gillett; J.P. Towle; M. Islam; J.M. Brown

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 978 KB
• Volume: 163
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1040

✦ Synopsis

The infrared spectrum of the TeH radical in its (X^{2} \Pi) state has been recorded using an intracavity (\mathrm{CO}) laser magnetic resonance (LMR) spectrometer. Seven of the eight naturally occurring Te isotopomers were observed, with resonances originating from the first three vibrational levels; many were recorded as Lamb-dips. These observations have been combined with existing data for TeH and TeD in the (X^{2} \mathrm{II}) state and used to determine the parameters of an (\mathrm{N}^{2}) Hamiltonian, including isotopic scaling and nonadiabatic corrections. The data are well described by the parameters. The different isotopic dependences of the effects of the parameters (A_{D}) and (\gamma) has allowed their separation and the extent to which TeH shows Hund's case (c) coupling is discussed. Trends displayed by the chalcogen monohydrides are considered, (c) 1994 Academic Press. Inc.