Vibrational relaxation of a polyatomic solute in a polyatomic supercritical fluid near the critical point

被引:38
作者
Urdahl, RS
Rector, KD
Myers, DJ
Davis, PH
Fayer, MD
机构
[1] Department of Chemistry, Stanford University, Stanford
关键词
D O I
10.1063/1.472628
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
Vibrational lifetimes and absorption spectra of the asymmetric CO stretching mode (similar to 1990 cm(-1)) of W(CO)(6) in supercritical CO2 are reported as functions of solvent density and temperature. Close to the critical temperature, the observables are density independent over a twofold range of density. Possible explanations are discussed for this unique behavior. (C) 1996 American Institute of Physics.
引用
收藏
页码:8973 / 8976
页数:4
相关论文
共 30 条
[1]   LINEAR SOLVATION ENERGY RELATIONSHIPS .21. GAS-PHASE DATA AS TOOLS FOR THE STUDY OF MEDIUM EFFECTS [J].
ABBOUD, JLM ;
GUIHENEUF, G ;
ESSFAR, M ;
TAFT, RW ;
KAMLET, MJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (19) :4414-4420
[2]  
Anisimov MA, 1991, CRITICAL PHENOMENA L
[3]  
[Anonymous], P R SOC LOND
[4]   SOLVENT EFFECTS IN ORGANIC SPECTRA - DIPOLE FORCES AND THE FRANCK-CONDON PRINCIPLE [J].
BAYLISS, NS ;
MCRAE, EG .
JOURNAL OF PHYSICAL CHEMISTRY, 1954, 58 (11) :1002-1006
[5]   UV-VISIBLE ABSORBENCY SPECTROSCOPY OF ORGANIC PROBES IN SUPERCRITICAL WATER [J].
BENNETT, GE ;
JOHNSTON, KP .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (02) :441-447
[6]   STRETCHING VIBRATIONS IN CONDENSED SYSTEMS - ESPECIALLY BONDS CONTAINING HYDROGEN [J].
BENSON, AM ;
DRICKAMER, HG .
JOURNAL OF CHEMICAL PHYSICS, 1957, 27 (05) :1164-1174
[7]   INFRARED SPECTROSCOPIC STUDIES OF SUPERCRITICAL FLUID SOLUTIONS [J].
BLITZ, JP ;
YONKER, CR ;
SMITH, RD .
JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (18) :6661-6665
[8]   APPLICATION OF THE KIRKWOOD-BUFF THEORY OF SOLUTIONS TO DILUTE SUPERCRITICAL MIXTURES [J].
COCHRAN, HD ;
LEE, LL ;
PFUND, DM .
FLUID PHASE EQUILIBRIA, 1987, 34 (2-3) :219-234
[9]   CLUSTERING IN DILUTE, BINARY SUPERCRITICAL MIXTURES - A FLUCTUATION ANALYSIS [J].
DEBENEDETTI, PG .
CHEMICAL ENGINEERING SCIENCE, 1987, 42 (09) :2203-2212
[10]   SOLUTE PARTIAL MOLAL VOLUMES IN SUPERCRITICAL FLUIDS [J].
ECKERT, CA ;
ZIGER, DH ;
JOHNSTON, KP ;
KIM, S .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (12) :2738-2746