BETA REVERSIBLE GAMMA-SNF2 PHASE-TRANSITION - NEUTRON-DIFFRACTION AND NMR-STUDY

被引：17

作者：

PANNETIER, J

DENES, G

DURAND, M

BUEVOZ, JL

机构：

[1] UNIV RENNES 1,CNRS,CHIM MINERALE D LAB 254,F-35042 RENNES,FRANCE

[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL DE PHYSIQUE | 1980年 / 41卷 / 09期

关键词：

D O I：

10.1051/jphys:019800041090101900

中图分类号：

学科分类号：

摘要：

Lattice and atomic-position parameters of SnF//2 were measured by neutron diffraction for both orthorhombic ( beta ) and tetragonal ( gamma ) phases. Both structural and **1**9F NMR results indicate a continuous second order transition at 66 degree C. The fluorine atoms undergo large displacements as a function of temperature but there is no change of size of the (SnF//4) bipyramids.

引用

收藏

页码：1019 / 1024

页数：6

相关论文

共 17 条

[1] POSITION-SENSITIVE DETECTORS (PSD) FOR NEUTRON-DIFFRACTION [J].

ALLEMAND, R ;

BOURDEL, J ;

ROUDAUT, E ;

CONVERT, P ;

IBEL, K ;

JACOBE, J ;

COTTON, JP ;

FARNOUX, B .

NUCLEAR INSTRUMENTS & METHODS, 1975, 126 (01) :29-42

[2] SNF2 STANNOUS FLUORIDE .5. - CONDUCTION CHARACTERISTICS [J].

ANSEL, D ;

DEBUIGNE, J ;

DENES, G ;

PANNETIER, J ;

LUCAS, J .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1978, 82 (04) :376-380

[3] BOND VALENCE AS AN AID TO UNDERSTANDING STEREOCHEMISTRY OF O AND F COMPLEXES OF SN(II), SB(III), TE(IV), I(V) AND XE(VI) [J].

BROWN, ID .

JOURNAL OF SOLID STATE CHEMISTRY, 1974, 11 (03) :214-233

[4] ABOUT SNF2 STANNOUS FLUORIDE .1. CRYSTALLOCHEMISTRY OF ALPHA-SNF2 [J].

DENES, G ;

PANNETIER, J ;

LUCAS, J ;

LEMAROUILLE, JY .

JOURNAL OF SOLID STATE CHEMISTRY, 1979, 30 (03) :335-343

[5]

DENES G, 1978, THESIS RENNES

[6]

DENES G, J SOLID STATE CHEM

[7] D1A, A HIGH-RESOLUTION NEUTRON POWDER DIFFRACTOMETER WITH A BANK OF MYLAR COLLIMATORS [J].

HEWAT, AW ;

BAILEY, I .

NUCLEAR INSTRUMENTS & METHODS, 1976, 137 (03) :463-471

[8]

HEWAT AW, 1973, RRL73897 UKAERE HARW

[9]

HEWAT AW, 1978, POWDER RETRIEVAL REF

[10] CRYSTALLOGRAPHIC STUDIES OF TIN(II) COMPOUNDS .1. CRYSTAL-STRUCTURE OF TIN(II) FLUORIDE, SNF2 [J].

MCDONALD, RC ;

HAU, HH ;

ERIKS, K .

INORGANIC CHEMISTRY, 1976, 15 (04) :762-765