Redetermination of NaGdS2, NaLuS2 and NaYS2

被引：21

作者：

Fabry, Jan ^{[1
]}

Havlak, Lubomir ^{[1
]}

Kucerakova, Monika ^{[2
]}

Dusek, Michal ^{[2
]}

机构：

[1] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic

[2] Acad Sci Czech Republic, Inst Phys, CR-16200 Prague 6, Czech Republic

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2014年 / 70卷

关键词：

crystal structure; rare earth sulfides; inorganics; redetermination; twinned structures; obverse-reverse twinning; rhombohedral structures; NaYS2; NaGdS2; NaLuS2; RARE-EARTH-ELEMENTS; STRUCTURAL-PROPERTIES; ETUDE CRISTALLOGRAPHIQUE; MAGNETIC-PROPERTIES; OPTICAL-PROPERTIES; KLUS2; PHOSPHOR; TERRES RARES; CRYSTALS; LUMINESCENCE; SULFIDES;

D O I：

10.1107/S2053229614009607

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title structures NaGdS2 (sodium gadolinium sulfide), NaLuS2 (sodium lutetium sulfide) and NaYS2 (sodium yttrium sulfide) were redetermined in order to improve the structural information available for the family of group 1 and thallium rare earth sulfides, which are isostructural with the rhombohedral alpha-NaFeO2 structure type. In particular, the present investigation has been directed at the rhombohedral sodium rare earth sulfides. The observed dependence of the fractional coordinate z(S2-) on the identity of the rare earth element in the newly determined structures is in agreement with the known structures of the potassium and rubidium analogues. Crystals of NaGdS2 and NaLuS2 display obverse-reverse twinning.

引用

页码：533 / +

页数：9

共 25 条

[1]

Agilent, 2012, CRYSALIS PRO

[2] ETUDE CRISTALLOGRAPHIQUE DE NOUVEAUX SULFURES DE TERRES RARES ET DE METAUX ALCALINS M = LI K [J].

BALLESTRACCI, R .

BULLETIN DE LA SOCIETE FRANCAISE MINERALOGIE ET DE CRISTALLOGRAPHIE, 1965, 88 (02) :207-+

[3] ETUDE CRISTALLOGRAPHIQUE DE SULFURES DE TERRES RARES ET DE SODIUM [J].

BALLESTRACCI, R ;

BERTAUT, EF .

BULLETIN DE LA SOCIETE FRANCAISE MINERALOGIE ET DE CRISTALLOGRAPHIE, 1964, 87 (04) :512-+

[4] 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

[5]

Brandenburg K., 2005, DIAMOND

[6]

Bronger W, 1996, EUR J SOL STATE INOR, V33, P213

[7] SYNTHESIS AND STRUCTURE OF TERNARY CHALCOGENIDES OF RARE-EARTHS ALNX2 (A = ALKALINE METAL) (X = SULFUR, SELENIUM, TELLURIUM) [J].

BRONGER, W ;

BRUGGEMANN, W ;

VONDERAHE, M ;

SCHMITZ, D .

JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 200 :205-210

[8] RAMAN AND INFRARED SPECTRA OF CRYSTALS WITH ALPHA-NAFEO2 STRUCTURE [J].

BRUESCH, P ;

SCHULER, C .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1971, 32 (05) :1025-&

[9] THE ANALYTICAL CALCULATION OF ABSORPTION IN MULTIFACETED CRYSTALS [J].

CLARK, RC ;

REID, JS .

ACTA CRYSTALLOGRAPHICA SECTION A, 1995, 51 :887-897

[10] MAGNETIC-PROPERTIES OF TLLNS2 COMPOUNDS (LN-EQUIVALENT-TO-ND, GD, DY, ER AND YB) [J].

DUCZMAL, M ;

PAWLAK, L .

JOURNAL OF ALLOYS AND COMPOUNDS, 1994, 209 :271-274

← 1 2 3 →