A molecular-beam Fourier transform microwave study of difluoromethane dimer

被引:41
作者
Blanco, S [1 ]
López, JC [1 ]
Lesarri, A [1 ]
Alonso, JL [1 ]
机构
[1] Univ Valladolid, Fac Ciencias, Dept Quim Fis, E-47005 Valladolid, Spain
关键词
molecular beam; molecular-beam Fourier transform microwave; hydrogen bond; molecular complexes; molecular structure;
D O I
10.1016/S0022-2860(02)00096-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Difluoromethane dimer has been generated in a supersonic beam expansion and characterised using Fourier transform microwave spectroscopy. The rotational transitions of the parent species together with the spectra corresponding to both C-13 isotopomers have been measured. Spectral analysis yielded rotational and centrifugal distortion constants for the observed species. The r(0) and r(s) hydrogen-bond structural parameters of the complex were determined from the inertial data. The derived structure is consistent with a cooperative union in the dimer formed by three hydrogen bonds. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:255 / 260
页数:6
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