Subnitrides with the new cluster Ba14CaN6

被引：21

作者：

Simon, A

Steinbrenner, U

机构：

[1] Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart, Heisenbergstrasse

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1996年 / 92卷 / 12期

关键词：

D O I：

10.1039/ft9969202117

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：

Four crystalline subnitrides have been isolated by reacting Ba, (Sr), Ca in Na or NaK alloy with nitrogen from different sources. According to single crystal X-ray structure analyses these phases have compositions NanBa14CaN6 (n = 14, 17, 21 and 22), and they contain the new Ba14CaN6 cluster, which consists of six face-sharing Ba5CaN octahedra with Ca in the centre of the cluster. This ion cluster is inserted into different metallic substructures formed by the Na atoms. Na22Ba14CaN6 exhibits a characteristic disorder which is due to frustration effects and is closely related to the disorder of an antiferromagnetic Ising spin system in a two-dimensional triangular lattice.

引用

页码：2117 / 2123

页数：7

共 17 条

[1]

Addison CC., 1984, CHEM LIQUID ALKALI M

[2]

ADDISON CC, 1975, J CHEM SOC DA, V20, P2082

[3]

HORVATH B, 1981, Z ANORG ALLG CHEM, V483, P209

[4]

KOHLER J, 1990, UNPUB PROGRAM GAP

[5]

Rauch P., 1992, ANGEW CHEM, V104, P1505

[6] THE NEW SUBNITRIDE NABA3N - AN EXTENSION OF ALKALI-METAL SUBOXIDE CHEMISTRY [J].

RAUCH, PE ;

SIMON, A .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1992, 31 (11) :1519-1521

[7]

ROHR C, 1995, 3 JAHR DTSCH GES KRI, P24

[8]

Simon A., 1979, STRUCT BOND, P81

[9]

Snyder G. J., 1994, ANGEW CHEM, V106, P713

[10] DISCRETE M(6)N OCTAHEDRA IN THE SUBNITRIDES NA16BA6N AND AG16CA6N - A RECONSIDERATION OF THE AG8CA3, STRUCTURE TYPE [J].

SNYDER, GJ ;

SIMON, A .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (06) :689-691

← 1 2 →