Nuclear magnetic resonance spectra of oriented 4-spin systems withC2vsymmetry (AA′BB′). The spectrum of thiophene
作者:
P. Diehl,
C. L. Khetrapal,
U. Lienhard,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1968)
卷期:
Volume 46,
issue 16
页码: 2645-2648
ISSN:0008-4042
年代: 1968
DOI:10.1139/v68-435
出版商: NRC Research Press
数据来源: NRC
摘要:
The general Hamiltonian for the nuclear magnetic resonance (n.m.r.) spectra of oriented 4-spin systems withC2vsymmetry of the type (AA′BB′) is reported. The system can be discussed analytically, if only the direct coupling between the various nuclei is considered. The expressions for transition frequencies and intensities for such a case are given.The proton spectrum of thiophene in the nematic phase ofp,p′-di-n-hexyloxyazoxybenzene has been analyzed. The ratios of the various interproton distances are determined.
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