SOLID-SOLID PHASE-TRANSFORMATION OF UNIAXIALLY ORIENTED N-ALKANE CRYSTALS OF HIGH-PURITY

被引:14
|
作者
KITAMARU, R
HORII, F
NAKAGAWA, M
TAKAMIZAWA, K
URABE, Y
OGAWA, Y
机构
[1] KYUSHU UNIV,FAC ENGN,FUKUOKA 812,JAPAN
[2] KUMAMOTO UNIV,FAC EDUC,KUMAMOTO 860,JAPAN
关键词
D O I
10.1016/0022-2860(95)08869-W
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The C-13 solid-state NMR spectrum and the spin-lattice relaxation time, T-1C, have been measured at different temperatures for a uniaxially oriented n-C27H56 crystal mat of purity 99.98%, setting the orientation axis parallel or perpendicular to the static magnetic field. On the basis of the change in the lineshape and T-1C value in the different phase A, A', and H, the molecular motions such as rapid local fluctuation and rotation about the molecular chain axis are discussed in the respective phases.
引用
收藏
页码:95 / 104
页数:10
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