Density inhomogeneity in amorphous chlorobenzene vapor-deposited on cold substrates

被引：18

作者：

Ishii, K ^{[1
]}

Yoshida, M ^{[1
]}

Suzuki, K ^{[1
]}

Sakurai, H ^{[1
]}

Shimayama, T ^{[1
]}

Nakayama, H ^{[1
]}

机构：

[1] Gakushuin Univ, Dept Chem, Tokyo 1718588, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2001年 / 74卷 / 03期

关键词：

D O I：

10.1246/bcsj.74.435

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Light transmission through amorphous chlorobenzene was studied during the vacuum deposition of the vapor onto cold substrates. It was found that samples prepared at 78 K were transparent, but those prepared at 15 K were slightly opaque. Raman and X-ray studies indicated that both kinds of samples were amorphous, but they showed different behavior against annealing. The transparent samples needed some induction period to start crystallization when the temperature was raised for annealing, while the slightly opaque samples underwent crystallization by annealing almost without any induction period. Samples prepared at very-low temperatures are considered to incorporate density inhomogeneity, and the resultant free space around molecular aggregates may allow the samples to start crystallization easily.

引用

页码：435 / 440

页数：6

共 13 条

[1] CRYSTAL STRUCTURE OF MONOCHLOROBENZENE AT 393 K AND 14.2 KBARS - REFINEMENT BY RIGID GROUP [J].