Synthesis and Characterization of the Rubidium Thiophosphate Rb6(PS5)(P2S10) and the Rubidium Silver Thiophosphates Rb2AgPS4, RbAg5(PS4)2 and Rb3Ag9(PS4)4

被引：11

作者：

Alahmari, Fatimah ^{[1
]}

Davaasuren, Bambar ^{[1
]}

Khanderi, Jayaprakash ^{[1
]}

Rothenberger, Alexander ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2016年 / 642卷 / 05期

关键词：

Chalcophosphates; Thiophosphate; Alkali metal thiophosphate; Rubidium-Silver thiophosphates; CRYSTAL-STRUCTURES; STRUCTURAL-CHARACTERIZATION; METAL; RB; CS; COMPOUND; FLUXES; A=K;

D O I：

10.1002/zaac.201500793

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The metal thiophosphates Rb2AgPS4 (2), RbAg5(PS4)(2) (3), and Rb3Ag9(PS4)(4) (4) were synthesized by stoichiometric reactions, whereas Rb-6(PS5)(P2S10) (1) was prepared with excess amount of sulfur. The compounds crystallize as follows: 1 monoclinic, P2(1)/c (no. 14), a = 17.0123(7) angstrom, b = 6.9102(2) angstrom, c = 23.179(1) angstrom, = 94.399(4)degrees; 2 triclinic, P(no. 2), a = 6.600(1) angstrom, b = 6.856(1) angstrom, c = 10.943(3) angstrom, = 95.150(2)degrees, = 107.338(2)degrees, = 111.383(2)degrees; 3 orthorhombic, Pbca (no. 61), a = 12.607(1) angstrom, b = 12.612(1) angstrom, c = 17.759(2) angstrom; 4 orthorhombic, Pbcm (no. 57), a = 6.3481(2) angstrom, b = 12.5782(4) angstrom, c = 35.975(1) angstrom. The crystal structures contain discrete units, chains, and 3D polyanionic frameworks composed of PS4 tetrahedral units arranged and connected in different manner. Compounds 1-3 melt congruently, whereas incongruent melting behavior was observed for compound 4. 1-4 are semiconductors with bandgaps between 2.3 and 2.6 eV and thermally stable up to 450 degrees C in an inert atmosphere.

引用

页码：361 / 367

页数：7

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