NEW OPTICAL-CELL DESIGN FOR LASER FLASH-PHOTOLYSIS STUDIES IN SUPERCRITICAL FLUIDS

被引：19

作者：

JI, Q ^{[1
]}

EYRING, EM ^{[1
]}

VANELDIK, R ^{[1
]}

REDDY, KB ^{[1
]}

GOATES, SR ^{[1
]}

LEE, ML ^{[1
]}

机构：

[1] BRIGHAM YOUNG UNIV,DEPT CHEM,PROVO,UT 84602

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 01期

关键词：

D O I：

10.1063/1.1145262

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A high-pressure optical cell has been designed that achieves an effective separation between the chemical sample and the pressurizing medium and system. This design limits possible sample contamination and catalytic effects under supercritical fluid sample conditions. Laser flash photolysis experiments were carried out on molybdenum hexacarbonyl dissolved in supercritical CO 2. The thermal ring closure reaction of the species Mo(CO) 5L, where L is 2,2′-bipyridine was found to proceed at rates comparable to those measured previously in liquid benzene or toluene. Much larger activation volumes were found for the reaction in supercritical CO 2 than in liquid toluene. © 1995 American Institute of Physics.

引用

页码：222 / 226

页数：5

共 30 条

[1]

[Anonymous], 1991, SUPERCRITICAL FLUID

[2] SPECTROSCOPIC DETERMINATION OF SOLUTE FLUID CLUSTER SIZE IN SUPERCRITICAL N2O [J].