Contribution to the crystal chemistry of rare-earth chalcogenides.: II.: The crystal structure and twinning of rare-earth disulfide PrS2

被引：21

作者：

Tamazyan, R ^{[1
]}

Arnold, H

Molchanov, VN

Kuzmicheva, GM

Vasileva, IG

机构：

[1] Rhein Westfal TH Aachen, Inst Kristallog, D-52056 Aachen, Germany

[2] Russian Acad Sci, Inst Crystallog, Moscow, Russia

[3] Moscow Inst Fine Chem Technol, Moscow, Russia

[4] Russian Acad Sci, Inst Inorgan Chem, Sib Div, Novosibirsk 630090, Russia

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2000年 / 215卷 / 05期

关键词：

D O I：

10.1524/zkri.2000.215.5.272

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The structure of the presodyme disulfide PrS2 has been determined and refined by the LS method in space group P2(1)/b11 (14) with a = 4.054(1) Angstrom b = 8.058(1) Angstrom; c = 8.079(1) Angstrom and alpha = 90.08(2)degrees to the final values of discrepancy factors R = 0.0188; R-w = 0.0204. The structure is a derivative structure of the ZrSSi (or PbFCl) structure type. A heringbone pattern of S-2(2-) dumbbells with interatomic distance 2.135(1) Angstrom is observed in the planes parallel to (001). The investigated crystal has been twinned by pseudomerohedral law, the twin symmetry is mm'm' and the twinning symmetry elements are (010) and (001) mirror planes.

引用

页码：272 / 277

页数：6

共 14 条

[1]

ADRIANOV VI, 1987, SOV PHYS-CRYSTALLOGR, V32, P130

[2] EXTINCTION WITHIN LIMIT OF VALIDITY OF DARWIN TRANSFER EQUATIONS .1. GENERAL FORMALISMS FOR PRIMARY AND SECONDARY EXTINCTION AND THEIR APPLICATION TO SPHERICAL CRYSTALS [J].

BECKER, PJ ;

COPPENS, P .

ACTA CRYSTALLOGRAPHICA SECTION A, 1974, A 30 (MAR) :129-147

[3] EXTINCTION WITHIN LIMIT OF VALIDITY OF DARWIN TRANSFER EQUATIONS .2. REFINEMENT OF EXTINCTION IN SPHERICAL CRYSTALS OF SRF2 AND LIF [J].

BECKER, PJ ;

COPPENS, P .

ACTA CRYSTALLOGRAPHICA SECTION A, 1974, A 30 (MAR) :148-153

[4] EXTINCTION WITHIN LIMIT OF VALIDITY OF DARWIN TRANSFER EQUATIONS .3. NON-SPHERICAL CRYSTALS AND ANISOTROPY OF EXTINCTION [J].

BECKER, PJ ;

COPPENS, P .

ACTA CRYSTALLOGRAPHICA SECTION A, 1975, 31 (JUL1) :417-425

[5]

BENAZETH P, 1982, ACTA CRYSTALLOGR A, V31, P33

[6]

BENAZETH P, 1982, ACTA CRYSTALLOGR A, V31, P37

[7] Contribution to the crystal chemistry of rare earth chalcogenides.: I.: The compounds with layer structures LnX2 [J].

Böttcher, P ;

Doert, T ;

Arnold, H ;

Tamazyan, R .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 2000, 215 (04) :246-253

[8]

Donnay G., 1974, CAN MINERAL, V12, P422

[9]

Friedel G., 1926, LECON CRISTALLOGRAPH

[10]

MARCON JP, 1968, CR ACAD SCI C CHIM, V266, P270

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