Synthesis and characterization of Ba2SnTe5: A new zintl phase containing unique one-dimensional chains of (SnTe3)(2-) and dimeric units of (Te-2)(2-)

被引：25

作者：

Li, J

Liszewski, YY

MacAdams, LA

Chen, F

Mulley, S

Proserpio, DM

机构：

[1] RIDER UNIV,DEPT CHEM,LAWRENCEVILLE,NJ 08648

[2] UNIV MILAN,DIPARTIMENTO CHIM STRUTTURALE & STEREOCHIM INORGA,I-20133 MILAN,ITALY

来源：

CHEMISTRY OF MATERIALS | 1996年 / 8卷 / 03期

关键词：

D O I：

10.1021/cm950400z

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：

Ba2SnTe5, a novel alkaline-earth-metal tin telluride has been synthesized from a potassium polytelluride salt. Single-crystal X-ray diffraction analysis shows that this compound is a Zintl phase containing unique one-dimensional ''Zweireinfach''-chains of corner-sharing SnTe4 tetrahedra and isolated (Te-2)(2-) dimers. It represents the first ternary alkaline-earth-metal telluride synthesized from a polytelluride flux. Band calculations indicate strong covalent bonding between the Sn and Te within the chain. The interactions between the dimers and the chains are weak and repulsive.

引用

页码：598 / &

页数：4

共 65 条

[41] SYNTHESES, STRUCTURES, AND PROPERTIES OF 6 NOVEL ALKALI-METAL TIN SULFIDES - K2SN2S8, ALPHA-RB2SN2S8, BETA-RB2SN2S8, K2SN2S5, CS2SN2S6, AND CS2SNS14 [J].