RAMAN-SPECTROSCOPIC STUDY OF PHASE-CHANGES IN THE CRYSTAL OF 4,4'-DICHLOROBENZOPHENONE

被引:21
作者
PERETTI, P
RANSON, P
机构
[1] Départment de Recherches Physiques, Université P. et M. Curie, Laboratoire associé au CNRS No. 71, Paris, 75230
关键词
D O I
10.1002/jrs.1250080408
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Low frequency vibrations of single crystal 4,4′‐dichlorobenzophenone (DCBP) have been determined by Raman spectroscopy and an analysis of the spectra is presented. In the temperature range 160–190 K two phase changes occur, a feature that is common to many organic molecular crystals and is quite likely due to conformational changes in individual molecules. These changes do not appear to alter the molecular symmetry, C2, or the space group C 2h6 of the unit cell. Copyright © 1979 Heyden & Son Ltd.
引用
收藏
页码:209 / 212
页数:4
相关论文
共 11 条
[1]  
BLAZEVIC J, COMMUNICATION
[2]  
COLOMBO L, 1976, 5TH P INT C RAM SPEC, P532
[3]  
DORAZIO M, 1976, 5TH P INT C RAM SPEC, P520
[4]  
Ito M., 1968, Excitons, magnons and phonons in molecular crystals, P1
[5]   The Raman effect and molecules turnaround in crystals - General theory and experimental verification in the case of naphtalene [J].
Kastler, A ;
Rousset, A .
JOURNAL DE PHYSIQUE ET LE RADIUM, 1941, 2 :49-57
[6]   ANALYSIS OF THE ZERO PHONON LINE AND EXCITON RELAXATION IN SINGULET-TRIPLET ABSORPTION-SPECTRUM OF 4,4'-DICHLOROBENZOPHENONE CRYSTAL [J].
RANSON, P ;
PERETTI, P ;
ROUSSET, Y .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1978, 48 (3-4) :243-260
[7]   LINE-INTENSITIES AND INTERPRETATION OF LOW-FREQUENCY RAMAN-SPECTRA OF BENZOPHENONE H10 AND BENZOPHENONE D10 AT T = 6K [J].
RANSON, P ;
PERETTI, P ;
TIERCE, R ;
ROUSSET, Y .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1975, 31 (9-10) :1277-1281
[8]  
TOUSSAINT J, 1952, THESIS U LIEGE
[9]  
TOUSSAINT J, 1948, B SOC R SCI LIEGE, V17, P10
[10]   AROMATIC CARBONYL SPECTRA .I. POLARIZED ABSORPTION SPECTRUM OF SINGLE-CRYSTAL 4,4'-DICHLOROBENZOPHENONE [J].
VALA, M ;
TANAKA, J .
JOURNAL OF CHEMICAL PHYSICS, 1968, 49 (12) :5222-&