The C-N stretching band of methylamine

被引：12

作者：

Gulaczyk, Iwona ^{[1
]}

Kreglewski, Marek ^{[1
]}

Horneman, Veli-Matti ^{[2
]}

机构：

[1] Adam Mickiewicz Univ Poznan, Fac Chem, PL-60780 Poznan, Poland

[2] Univ Oulu, Dept Phys Sci, Oulu, Finland

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2011年 / 270卷 / 01期

关键词：

Methylamine; C-N stretching; High resolution infrared spectrum; Loomis-Wood diagram; Coriolis and Fermi resonances; ASSIGNMENTS; VIBRATION; SPECTRUM; AMINE; STATE;

D O I：

10.1016/j.jms.2011.09.003

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：

For the first time the C-N stretching band of methylamine has been assigned in a high resolution spectrum in the region from 960 to 1200 cm(-1). Over 3500 transitions with a resolution of 0.001 cm(-1) for K from 0 to 12 have been assigned. A global fit has been made and the band center was determined at 1044.8134(33) cm(-1). Several branches of the C-N band are strongly perturbed through Fermi and Coriolis type resonances. The sources of the perturbations have been identified - the fourth torsional state 4 nu(15) and the combination state nu(9) + nu(15). An attempt to fit the observed transitions to a single state model based on the group theoretical formalism of Ohashi and Hougen [1] resulted in the standard deviation of 0.04 cm(-1). (C) 2011 Elsevier Inc. All rights reserved.

引用

收藏

页码：70 / 74

页数：5

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