Issue 19, 2001

Laser spectroscopy of YBr: rotational analysis of the C1Σ–X1Σ system

Abstract

The (0,0), (0,1), (0,2), (0,3), (1,2), (1,3), (1,4) and (2,4) bands of the C1Σ–X 1Σ transition of YBr, between 720 and 765 nm, have been studied using the technique of laser vaporization/reaction with supersonic cooling and laser induced fluorescence spectroscopy. Spectra of both Y79Br and Y81Br isotopic molecules were observed and analysed. A merged least-squares fit of the measured line positions yield molecular constants for the [italic v (to differentiate from Times ital nu)] = 0–2 levels of the C 1Σ state and the [italic v (to differentiate from Times ital nu)] = 0–4 of the X1Σ state. The equilibrium bond length of the C1Σ state has been determined to be 2.6087(2) Å.

Supplementary files

Article information

Article type
Paper
Submitted
03 Jul 2001
Accepted
30 Jul 2001
First published
04 Sep 2001

Phys. Chem. Chem. Phys., 2001,3, 4262-4265

Laser spectroscopy of YBr: rotational analysis of the C1Σ–X1Σ system

J. W-H. Leung, J. Dai, X. Wang and A. S-C. Cheung, Phys. Chem. Chem. Phys., 2001, 3, 4262 DOI: 10.1039/B105895A

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