Local density augmentation around acetophenone N,N,N′,N′-tetramethylbenzidine exciplex in supercritical water

被引：11

作者：

Aizawa, T ^{[1
]}

Kanakubo, M

Ikushima, Y

Smith, RL

Saitoh, T

Sugimoto, N

机构：

[1] Natl Inst Adv Ind Sci & Technol, Supercrit Fluid Res Ctr, Sendai, Miyagi 9838551, Japan

[2] Tohoku Univ, Res Ctr Supercrit Fluid Technol, Grad Sch Chem Engn, Sendai, Miyagi 9808579, Japan

[3] Taiatsu Techno Corp, Bunkyo Ku, Tokyo 1130021, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 393卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2004.05.100

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：

Local density augmentation around exciplex between acetophenone and N,N,N',N'-tetramethylbenzidine (TMB) in supercritical water was measured by peak shift of transient absorption spectrum at 380 degreesC and at pressures from 6 to 37 MPa. Large local density augmentation was observed at lower densities. The excess density, defined by the difference between local density and bulk density, exhibited a maximum at approximately 0.15 g cm(-1). Our results show that the degree of local density augmentation that exists in supercritical water is comparable to that observed in supercritical carbon dioxide in some system. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：31 / 35

页数：5

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