THE REGION OF THE 3-NU-3 BAND OF METHANE

被引：55

作者：

PIERRE, G ^{[1
]}

HILICO, JC ^{[1
]}

DEBERGH, C ^{[1
]}

MAILLARD, JP ^{[1
]}

机构：

[1] OBSERV PARIS,ASTROPHYS SECT,F-92190 MEUDON,FRANCE

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 1980年 / 82卷 / 02期

关键词：

Quantum theory - Fourier transform infrared spectroscopy;

D O I：

10.1016/0022-2852(80)90122-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The spectrum of methane near 9000 cm-1, the region of the 3ν3 band, has been recorded at Meudon Observatory with a Fourier transform spectrometer under high resolution. Intensity measurements at two different temperatures, 149 and 295 K, have allowed us to identify two new vibration bands by determining the lower-state quantum numbers J of the transitions. About 100 lines are now assigned in this range, including P and Q branches. Furthermore, the first detailed rotational analysis of the 3ν3 band has been made; nine parameters of the band have been determined. The standard deviation of the differences between observed and computed wavenumbers for 45 lines of the 3ν3 band is only 0.045 cm-1. It is found that the observed 45 lines of the 3ν3 band correspond to the sublevel l3 = 3 and Cν = F 2. Copyright © 1980 by Academic Press, Inc.

引用

页码：379 / 393

页数：15

共 27 条

[11] THEORY OF VIBRATION-ROTATION INTERACTIONS IN SPHERICAL TOP MOLECULES .1. A NEW OVERTONE BAND [J].