[The reseach on Raman spectra of 1-hexanol at high pressure].
The present paper investigates Raman spectral characters of 1-hexanol by the SiC anvil cell at the pressure of 163.4-793.4 MPa and the temperature of 25 degrees C. It was found that under the pressure of 163.4-767.6 MPa the character of 1-Hexanol is steady, and the frequencies of C--H symmetrical stretch vibration and antisymmetric stretch vibration increase with increasing pressure, and the relations between the frequency and the pressure are given as follows: upsilon2876 = 0.009 1P + 2875.1, upsilon2931 = 0.005 7P+2930.5. At 793.4 MPa there is transformation from liquid state to solid state. On the basis of former data, the authors contrasted the features of 1-hexanol, methanol and ethanol under high pressure. It was revealed that the relation between wave numbers of C-H symmetrical stretch vibration peaks and system pressure is independent of the C--C bond, that is the relation between wave numbers of C-H symmetrical stretch vibration peaks and system pressure is foreign to the number of the carbon atoms.
Li
Rui
R
Key Lab of Orogen and Crustal Evolution of Ministry of Education, SESS, Peking University, Beijing 100871, China. lirui6206@sohu.com
Zhang
Hai-fei
HF