Low‐frequency vibrational modes and temperature dependence of NQR frequencies in 1,2,4,5‐tetrabromobenzene
作者:
N. Bharateswara Rao,
M. Rangacharyulu,
P. Venkatacharyulu,
D. Premaswarup,
期刊:
Organic Magnetic Resonance
(WILEY Available online 1984)
卷期:
Volume 22,
issue 1
页码: 1-5
ISSN:0030-4921
年代: 1984
DOI:10.1002/mrc.1270220102
出版商: John Wiley&Sons Limited
数据来源: WILEY
摘要:
AbstractA temperature variation study of the nuclear quadrupole resonance (NQR) frequencies for the two resonance lines in 1,2,4,5‐tetrabromobenzene was carried out in the range 77–300 K. The far‐infrared spectrum of 1,2,4,5‐tetrabromobenzene was recorded and the low‐frequency vibrational modes noted. From the nine observed frequencies, the torsional modes contributing to the change in NQR frequencies with temperature are identified by correlating the calculated values of the NQR frequencies at different temperatures with the observ
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