N.M.R. study of the125Te shielding anisotropy of tellurophene dissolved in various nematic liquid crystals
作者:
J. Jokisaari,
T. Väänänen,
期刊:
Molecular Physics
(Taylor Available online 1986)
卷期:
Volume 58,
issue 5
页码: 959-964
ISSN:0026-8976
年代: 1986
DOI:10.1080/00268978600101701
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The125Te N.M.R. spectrum of tellurophene in three liquid crystals was recorded and analysed. The different orientational behaviour of tellurophene in the liquid crystals enabled the anisotropy of the tellurium-125 shielding tensor, σzz- 1/2(σxx+ σyy), and the difference σxx- σyyof the tensor elements to be determined. The resulting values are -1569 ± 21 ppm and 307 ± 26 ppm, respectively. The analysis of the125Te N.M.R. spectra is also discussed.
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