Deperturbation studies of d 3∆ - a 3Π transition of CS molecule

Sunanda, K

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https://hdl.handle.net/2142/50931 Copy

Description

Title

Deperturbation studies of d 3∆ - a 3Π transition of CS molecule

Author(s)

Sunanda, K

Contributor(s)

• Kawaguchi, Kentarou
• Saksena, Madhav Das
• Deo, M N

Issue Date

2014-06-16

Keyword(s)

Small molecules

Abstract

The F. T. Spectrum of CS molecule was recorded with Bruker IFS 120 HR spectrometer at a spectral resolution of 0.03 cm$^{-1}$ using liquid nitrogen cooled InSb detector in the region 10500 - 1800 cm$^{-1}$. Intense spectrum of CS radical was excited by DC discharge of mixture of CS$_{2}$ (120 mTorr) and He (2 Torr) in flowing condition. Two hours integration time was used for obtaining a good S/N ratio. The recorded spectrum is more intense compared to previous studies, therefore, it has been possible to excite lower values of v’ and v’’ for the d $^{3}$$\Delta$$_{i}$ - a $^{3}$$\Pi$$_{r}$ transition. The bands of three sub-systems occur with varying intensity. The following bands have been rotationally analysed, viz. 1-0, 2-1, 3-2 ( d $^{3}$$\Delta$$_{3}$ - a $^{3}$$\Pi$$_{2}$); 2-0, 3-1, 4-2 ( d $^{3}$$\Delta$$_{2}$ - a $^{3}$$\Pi$$_{1}$); and 1-1, 3-3 ( d $^{3}$$\Delta$$_{1}$ - a $^{3}$$\Pi$$_{0}$). The d $^{3}$$\Delta$$_{i}$ is state is highly perturbed. Using a deperturbation program PGOPHER (C. M. Western, Univ. of Bristol) the molecular constants of the two states have been derived.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/50931

DOI

https://doi.org/10.15278/isms.2014.MG06

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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