摘要
用最小二乘法拟合ＣＨ３Ｄ分子６４２８ｃｍ－１附近振动带的１３８个能级，１０个振动常数。振动分析阐明该带为ＣＨ３Ｄ分子Ｃ—Ｄ对称伸缩振动３Ｖ２态，并与局域模振动理论计算值进行了比较。
Highresolution Fourier transform spectra of the band of the CH3D molecule near 6428cm-1have been recorded on a BRUKER IFS 120HR Fouriertransform spectrometer with multipass cell with a length of 20m,an unapodized resolution of 0004cm-1 was achieved.Vibrationrotation analysis in Localmode can provide accurate enough initial values to predict the band origins.The vibrationrotation transitions of CH3D molecule were assigned by using the ground state combination differences and leastsquares fitted to yield ten vibrationrotation constants for the band of CH3D molecule near 6428cm-1.Vibration assignment in Normalmode and Localmode expressed that the band of CH3D molecule near 6428cm-1 is 3V2 vibration states of CH3D molecule.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第3期279-288,共10页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
