Dielectric relaxation of electrolyte solutions using terahertz transmission spectroscopy

被引：58

作者：

Asaki, MLT ^{[1
]}

Redondo, A

Zawodzinski, TA

Taylor, AJ

机构：

[1] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2002年 / 116卷 / 19期

关键词：

D O I：

10.1063/1.1468888

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：

We use terahertz (THz) transmission spectroscopy to obtain the frequency dependent complex dielectric constants of water, methanol, and propylene carbonate, and solutions of lithium salts in these solvents. The behavior of the pure solvents is modeled with either two (water) or three (methanol and propylene carbonate) Debye relaxations. We discuss the effects of ionic solvation on the relaxation behavior of the solvents in terms of modifications to the values of the Debye parameters of the pure solvents. In this way we obtain estimates for numbers of irrotationally bound solvent molecules, the numbers of bonds broken or formed, and the effects of ions on the higher-frequency relaxations. (C) 2002 American Institute of Physics.

引用

页码：8469 / 8482

页数：14

共 47 条

[1] Dynamics of benzonitrile, propylene carbonate and butylene carbonate:: the influence of molecular shape and flexibility on the dielectric relaxation behaviour of dipolar aprotic liquids [J].

Barthel, J ;

Buchner, R ;

Hölzl, CG ;

Münsterer, M .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2000, 214 (09) :1213-1231

[2] Dielectric relaxation spectroscopy of electrolyte solutions. Recent developments and prospects [J].

Barthel, J ;

Buchner, R ;

Eberspacher, PN ;

Munsterer, M ;

Stauber, J ;

Wurm, B .

JOURNAL OF MOLECULAR LIQUIDS, 1998, 78 (1-2) :83-109

[3] MOLECULAR PROCESSES IN ELECTROLYTE-SOLUTIONS AT MICROWAVE-FREQUENCIES [J].

BARTHEL, J ;

BUCHNER, R ;

BACHHUBER, K ;

HETZENAUER, H ;

KLEEBAUER, M ;

ORTMAIER, H .

PURE AND APPLIED CHEMISTRY, 1990, 62 (12) :2287-2296

[4] DIELECTRIC SPECTRA OF SOME COMMON SOLVENTS IN THE MICROWAVE REGION - DIPOLAR APROTIC-SOLVENTS AND AMIDES [J].

BARTHEL, J ;

BACHHUBER, K ;

BUCHNER, R ;

GILL, JB ;

KLEEBAUER, M .

CHEMICAL PHYSICS LETTERS, 1990, 167 (1-2) :62-66

[5] DIELECTRIC-PROPERTIES OF NONAQUEOUS ELECTROLYTE-SOLUTIONS [J].

BARTHEL, J ;

BUCHNER, R .

PURE AND APPLIED CHEMISTRY, 1986, 58 (08) :1077-1090

[6] ION SOLVATION AND ION ASSOCIATION STUDIED BY INFRARED AND MICROWAVE METHODS [J].

BARTHEL, J .

JOURNAL OF MOLECULAR LIQUIDS, 1995, 65-6 :177-185

[7] DIELECTRIC SPECTRA OF SOME COMMON SOLVENTS IN THE MICROWAVE REGION - WATER AND LOWER ALCOHOLS [J].

BARTHEL, J ;

BACHHUBER, K ;

BUCHNER, R ;

HETZENAUER, H .

CHEMICAL PHYSICS LETTERS, 1990, 165 (04) :369-373

[8] DIELECTRIC-RELAXATION OF AQUEOUS-ELECTROLYTE SOLUTIONS .1. SOLVENT RELAXATION OF 1/2, 2/1, AND 2/2 ELECTROLYTE-SOLUTIONS [J].

BARTHEL, J ;

HETZENAUER, H ;

BUCHNER, R .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1992, 96 (08) :988-997

[9] HIGH-FREQUENCY PERMITTIVITY AND ITS USE IN THE INVESTIGATION OF SOLUTION PROPERTIES [J].

BARTHEL, J ;

BUCHNER, R .

PURE AND APPLIED CHEMISTRY, 1991, 63 (10) :1473-1482

[10]

BARTHEL JMG, 1998, PHYSICAL CHEM ELECT, P89

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