反式-d₂-乙烯ν(12)带的高分辨率傅里叶变换红外光谱

High-Resolution FTIR Spectrum of the nu(12) Band of trans-d(2)-Ethylene.

作者信息

Teo HH, Ong PP, Tan TL, Goh KL

机构信息

Department of Physics, Faculty of Science, National University of Singapore, Lower Kent Ridge Road, 119260, Singapore

出版信息

J Mol Spectrosc. 2000 Nov;204(1):145-147. doi: 10.1006/jmsp.2000.8210.

DOI:10.1006/jmsp.2000.8210

PMID:11034852

Abstract

The nu(12) band of trans-d(2)-ethylene (trans-C(2)H(2)D(2)) has been recorded with an unapodized resolution of 0.0024 cm(-1) in the frequency range of 1240-1360 cm(-1) by Fourier transform infrared (FTIR) spectroscopy. This band was found to be relatively free from any local frequency perturbations. By fitting a total of 1185 infrared transitions of nu(12) with a standard deviation of 0.00043 cm(-1) using a Watson's A-reduced Hamiltonian in the I(r) representation, a set of accurate rovibrational constants for v(12) = 1 state was derived. The nu(12) band is A type with a band center at 1298.03797 +/- 0.00004 cm(-1). Copyright 2000 Academic Press.

摘要

通过傅里叶变换红外（FTIR）光谱法，在1240 - 1360 cm⁻¹频率范围内，以0.0024 cm⁻¹的未变迹分辨率记录了反式-d₂-乙烯（反式-C₂H₂D₂）的ν(12)带。发现该谱带相对不受任何局部频率扰动的影响。使用I(r)表示中的沃森A简化哈密顿量，对总共1185条ν(12)的红外跃迁进行拟合，标准偏差为0.00043 cm⁻¹，得出了v(12) = 1态的一组精确振转常数。ν(12)带为A类，带中心位于1298.03797 ± 0.00004 cm⁻¹。版权所有2000年学术出版社。