TETRAHEDRAL COORDINATION OF ZN IONS IN MOLTEN ZINC HALIDES

被引:72
作者
ALLEN, DA [1 ]
HOWE, RA [1 ]
WOOD, ND [1 ]
HOWELLS, WS [1 ]
机构
[1] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND
关键词
D O I
10.1063/1.460544
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
Measurements of the scattering of thermal neutrons from natural samples of molten ZnCl2, ZnBr2, and ZnI2 are reported. The experiments were undertaken on the liquids and amorphous materials diffractometer of the ISIS spallation source at the Rutherford-Appleton laboratory. The data reveal some shortcomings in earlier studies of ZnCl2 but confirm a structural model in which the small Zn2+ ions occupy tetrahedrally coordinated sites in a closely packed anion structure, with strong intermediate range ordering. Features arising from changes in the anion species are identified and temperature-dependent effects are resolved in ZnCl2.
引用
收藏
页码:5071 / 5076
页数:6
相关论文
共 21 条
[1]   PAIR STRUCTURE AND INTERIONIC FORCES IN MOLTEN ZINC-CHLORIDE [J].
BALLONE, P ;
PASTORE, G ;
THAKUR, JS ;
TOSI, MP .
PHYSICA B & C, 1986, 142 (03) :294-300
[2]   THE STRUCTURE OF MOLTEN CALCIUM-CHLORIDE [J].
BIGGIN, S ;
ENDERBY, JE .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (25) :3577-3583
[3]   THE STRUCTURE OF MOLTEN ZINC-CHLORIDE [J].
BIGGIN, S ;
ENDERBY, JE .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (22) :3129-3136
[4]   THE STRUCTURES OF MOLTEN MAGNESIUM AND MANGANESE(II) CHLORIDES [J].
BIGGIN, S ;
GAY, M ;
ENDERBY, JE .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (06) :977-985
[5]  
DESA JAE, 1982, J NON-CRYST SOLIDS, V51, P57, DOI 10.1016/0022-3093(82)90189-2
[6]   STRUCTURE OF MOLTEN BARIUM-CHLORIDE [J].
EDWARDS, FG ;
HOWE, RA ;
ENDERBY, JE ;
PAGE, DI .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1978, 11 (06) :1053-1057
[7]  
FAIRBANKS MC, 1987, THESIS U OXFORD
[8]  
HOWELLS WS, 1986, RAL86042 RUTH APPL L
[9]  
IMAOKA M, 1971, YOGYO-KYOKAI-SHI, V79, P97
[10]   IMPROVED RIGID ION MODEL OF MOLTEN ZINC-CHLORIDE [J].
KUMTA, PN ;
DEYMIER, PA ;
RISBUD, SH .
PHYSICA B, 1988, 153 (1-3) :85-92