Pressure dependence of acetophenone N, N, N′, N′-tetramethylbenzidine exciplex in supercritical carbon dioxide

被引：7

作者：

Aizawa, T ^{[1
]}

Janttarakeeree, S

Ikushima, Y

Saitoh, N

机构：

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

[2] Thaksin Univ, Fac Sci, Dept Chem, Songkhla 90000, Thailand

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 354卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(02)00123-9

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 pressure dependence of the formation and decay processes of exciplex between two neutral species acetophenone (AP) and N,N,N',N'-tetramethylbenzidine (TMB) in supercritical carbon dioxide was investigated by a transient absorption technique at 40 degreesC and at pressures from 9.0 to 14.7 MPa. The exciplex formation rate constant could be described by the Stokes-Einstein/Debye (SE/D) equation. The trend of the exciplex decay rate constant showed local density augmentation around the exciplex in the low-pressure region. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：298 / 302

页数：5

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