AN ORIENTATIONAL STUDY OF SMALL SOLUTES IN ZERO ELECTRIC-FIELD GRADIENT NEMATIC LIQUID-CRYSTAL MIXTURES

被引：3

作者：

CHANDRAKUMAR, T ^{[1
]}

SMITH, L ^{[1
]}

BURNELL, EE ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER,BC V6T 1Z1,CANADA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 18期

关键词：

D O I：

10.1021/j100018a043

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 solutes m-dichlorobenzene, o-dichlorobenzene. p-dichlorobenzene, o-dicyanzene, furan, tetrathiofulvalene, and fluorobenzene are studied in the zero electric field gradient mixtures 56.5 wt % 1132/EBBA and 70 wt % 5CB/EBBA using proton NMR. The two second-rank-order parameters obtained for each solute from analysis of the NMR spectra indicate that the solutes experience a similar anisotropic potential in both mixtures. The results are interpreted in terms of two models for the short-range anisotropic potential experienced by the solutes.

引用

页码：7054 / 7059

页数：6

共 32 条

[1] NMR OF DEUTERIUM IN LIQUID-CRYSTAL MIXTURES [J].

BARKER, PB ;

VANDEREST, AJ ;

BURNELL, EE ;

PATEY, GN ;

DELANGE, CA ;

SNIJDERS, JG .

CHEMICAL PHYSICS LETTERS, 1984, 107 (4-5) :426-430

[2] ZERO ELECTRIC-FIELD GRADIENT MIXTURES FOR THE ELUCIDATION OF ORIENTATIONAL MECHANISMS [J].

BARNHOORN, JBS ;

DELANGE, CA ;

BURNELL, EE .

LIQUID CRYSTALS, 1993, 13 (03) :319-343

[3] VAN DER WAALS VOLUMES + RADII [J].

BONDI, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1964, 68 (03) :441-+

[4]

BUCKINGHAM AD, 1970, PHYS CHEM ADV TREATI, V0004, P00349

[5]

CHANDRAKUMAR T, UNPUB

[6] STUDY OF MOLECULAR STRUCTURE AND OF BARRIER TO METHYL ROTATION IN ORTHO-CHLOROTOLUENE PARTIALLY ORIENTED IN NEMATIC PHASE [J].

DIEHL, P ;

HENRICHS, PM ;

NIEDERBERGER, W .

MOLECULAR PHYSICS, 1971, 20 (01) :139-+

[7]

DIEHL P, 1972, NMR BASIC PRINCIPLES, V6, P1

[8]

DONG RY, 1993, NUCLEAR MAGNETIC RES

[9] MULTIPLE CONTRIBUTIONS TO POTENTIALS OF MEAN TORQUE FOR SOLUTES DISSOLVED IN LIQUID-CRYSTAL SOLVENTS - A COMPARISON OF THE ORIENTATIONAL ORDERING OF ANTHRACENE AND ANTHRAQUINONE AS SOLUTES IN NEMATIC SOLVENTS [J].

EMSLEY, JW ;

HEEKS, SK ;

HORNE, TJ ;

HOWELLS, MH ;

MOON, A ;

PALKE, WE ;

PATEL, SU ;

SHILSTONE, GN ;

SMITH, A .

LIQUID CRYSTALS, 1991, 9 (05) :649-660

[10] THE INCLUSION OF ELECTROSTATIC AND DISPERSION INTERACTIONS INTO POTENTIALS OF MEAN TORQUE FOR SOLUTES DISSOLVED IN UNIAXIAL LIQUID-CRYSTAL SOLVENTS [J].

EMSLEY, JW ;

PALKE, WE ;

SHILSTONE, GN .

LIQUID CRYSTALS, 1991, 9 (05) :643-648

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