[(BH2)6S4]2-, [(BH2)6SE4]2- - NEW CHALCOGENOBORON HYDRIDE ANIONS WITH ADAMANTANE STRUCTURE

被引：11

作者：

BINDER, H ^{[1
]}

LOOS, H ^{[1
]}

DERMENTZIS, K ^{[1
]}

BORRMANN, H ^{[1
]}

SIMON, A ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

CHEMISCHE BERICHTE | 1991年 / 124卷 / 03期

关键词：

CHALCOGENOBORON HYDRIDE STRUCTURE; ADAMANTANE;

D O I：

10.1002/cber.19911240304

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of THF.BH3/NaBH4 (2:1) with H2S produces Na[H3B-mu-2-S(B2H5)] (5) with hydrogen evolution. 5 reacts with an excess of H2S to give Na2[(BH2)6S4] (3a), which is also formed in the reaction of THF.BH3 with NaSH or anhydrous Na2S. These reactions proceed via 5 and the intermediates 7 or 8 by loss of BH4- and cyclization. The analogous compound Na2[(BH2)6Se4] (4a) is obtained by the reaction of elemental selenium with NaBH4 (1:1) in triglyme. The primary product is Na2[H3B-Se-Se-BH3] (9). Treatment of 9 at 100-110-degrees-C yields 4a and polymers. 3a and 4a react with CsBr to form the crystalline compounds Cs2[(BH2)6S4].CsBr (3b) and Cs2-[(BH2)6Se4].CsBr (4b), characterized by X-ray structure determinations. The anions of 3b and 4b consist of an adamantane skeleton. The Br- ion is octahedrally coordinated by Cs+ ions. The Cs6Br octahedra share faces to form columns along the hexagonal c axis. The crystal structures of the isotypic compounds 3b and 4b are closely related to the structure of CsNiCl3.

引用

页码：427 / 432

页数：6

共 15 条

[11] P4(N-I-C3H7)6, A P4X6 MOLECULE WITH AND WITHOUT ADAMANTANE STRUCTURE [J].

SCHERER, OJ ;

ANDRES, K ;

KRUGER, C ;

TSAY, YH ;

WOLMERHAUSER, G .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1980, 19 (07) :571-572

[12]

SPIELVOGEL BF, 1966, J CHEM SOC CHEM COMM, P765

[13]

WOLFER K, 1985, Z NATURFORSCH B, V40, P235

[14]

WOLFER K, 1985, THESIS U STUTTGART

[15]

1975, GMELIN HDB ANORGANIS, V19, P6

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