溴化氘ν(1)带的高分辨率傅里叶变换红外光谱

The High-Resolution FTIR Spectrum of the nu(1) Band of DOBr.

作者信息

Tan TL, Goh KL

机构信息

Division of Physics, School of Science, Nanyang Technological University, National Institute of Education, 469, Bukit Timah Road, Singapore, 259756, Singapore

出版信息

J Mol Spectrosc. 2000 Jan;199(1):87-91. doi: 10.1006/jmsp.1999.7976.

DOI:10.1006/jmsp.1999.7976

PMID:10712874

Abstract

Fourier transform infrared spectra of the nu(1) bands of DO(79)Br and DO(81)Br have been recorded with a resolution of 0.0055 cm(-1) in the frequency range of 2510-2800 cm(-1). A total of 1901 lines of the A/B hybrid-type bands of both isotopic species have been assigned and fitted to upper state rovibrational constants employing a Watson's S-reduced Hamiltonian up to sextic terms. The K(a) >/= 4 subband transitions were found to be perturbed and were not included in the fit. The unperturbed band centers for nu(1) of DO(79)Br and DO(81)Br are 2668.79211 +/- 0.00006 and 2668.78842 +/- 0.00005 cm(-1), respectively. The ratio of the vibrational dipole transition moments (µ(a):µ(b)) was found to be 1.30 +/- 0.04 for the band. Copyright 2000 Academic Press.

摘要

已在2510 - 2800厘米⁻¹频率范围内，以0.0055厘米⁻¹的分辨率记录了DO(79)Br和DO(81)Br的ν(1)带的傅里叶变换红外光谱。两种同位素物种的A/B混合型带总共1901条谱线已被归属，并使用高达六次项的沃森S简化哈密顿量拟合到上能级振转常数。发现K(a)≥4子带跃迁受到扰动，未包含在拟合中。DO(79)Br和DO(81)Br的ν(1)的未受扰动带中心分别为2668.79211±0.00006和2668.78842±0.000