SYNTHESIS AND STRUCTURE DETERMINATION OF COMPLEX ZINC HYDRIDES .2. TRIPOTASSIUMTETRAHYDRIDOZINCATE(II) HYDRIDE, K-3[ZNH3]H

被引：22

作者：

BORTZ, M

YVON, K

FISCHER, P

机构：

[1] UNIV GENEVA,CRISTALLOG LAB,CH-1211 GENEVA 4,SWITZERLAND

[2] ETH ZURICH,NEUTRON SCATTERING LAB,CH-5232 VILLIGEN PSI,SWITZERLAND

[3] PAUL SCHERRER INST,CH-5232 VILLIGEN PSI,SWITZERLAND

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 216卷 / 01期

关键词：

DEUTERIDES; POTASSIUM; ZINC HYDRIDES;

D O I：

10.1016/0925-8388(94)91040-5

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：

K3ZnH5 and its deuteride were prepared by reacting stoichiometric amounts of KH (KD) and Zn metal at 650 K and 80 bar hydrogen (deuterium) pressure and characterized by X-ray and neutron powder diffraction. It crystallizes with the tetragonal Cs3CoCl5 structure type, space group I4/mcm (No. 140), Z=4, cell parameters a=7.5982(3), c=11.1929(5) Angstrom (hydride) and a=7.5819(4), c=11.1671(5) Angstrom (deuteride), and contains tetrahedral [ZnH4](2-) anions with Zn-H bond distances of 1.655(2) Angstrom and H-Zn-H bond angles of 107.15(9)degrees and 110.64(6)degrees, octahedrally coordinated hydrogen anions with K-H bond distances of 2.776(2) and 2.792(1) Angstrom, and two sorts of potassium cations. K3ZnD5 decomposes at 620(10) K to KD and Zn.

引用

页码：43 / 45

页数：3

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