Effects of high pressure on the Raman and fluorescence emission spectra of two novel 1,3,4-oxadiazole derivatives
Luo Ji-Feng (骆继锋)a, Tang Ben-Chen (唐本臣)b, Gao Chun-Xiao (高春晓)a, Li Min (李敏)b, Han Yong-Hao (韩永昊)a, Zou Guang-Tian (邹广田)a
a National Laboratory of Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China; b Key Laboratory for Automobile Materials, Ministry of Education, Department of Materials Science, Jilin University, Changchun 130012, China
Abstract The effects of pressure on the fluorescence emission and Raman spectra of 1,4-bis[(4-methyloxyphenyl)-1,3,4-oxadiazolyl]- 2,5-bisheptyloxyphenylene (OXD-2) and on the fluorescence emission spectra of 1,4-bis[(4-methylphenyl)-1,3,4-oxadiazolyl]phenylene (OXD-1) are investigated using a diamond anvil cell. With the increase of pressure, the intensity of the fluorescence emission increases and reaches maxima at 13GPa for OXD-1 and at 9.6GPa for OXD-2. The effect of pressure on the peak position of the emission shows a similar trend, red shift with the increase of pressure. But at higher pressures, the intensity of emission drops down dramatically. The Raman spectra of OXD-2 indicate that there appears a structural change at ca 3GPa.
Received: 14 October 2005
Revised: 17 March 2005
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10104008, 29974013,
50373016 ), the International Science and Technology Cooperation Project of China (Grant No 2001CB711201) and the State Education Commission Foundation fo
Cite this article:
Luo Ji-Feng (骆继锋), Tang Ben-Chen (唐本臣), Gao Chun-Xiao (高春晓), Li Min (李敏), Han Yong-Hao (韩永昊), Zou Guang-Tian (邹广田) Effects of high pressure on the Raman and fluorescence emission spectra of two novel 1,3,4-oxadiazole derivatives 2005 Chinese Physics 14 1770
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