Double-chain structure of (pipzH2)[MnF2(HPO4)(H2O)](H2PO4)

被引：6
|
作者：
Stief, R
Massa, W [1 ]
机构：
[1] Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany
[2] Univ Marburg, Wissensch Zentrum Mat Wissensch, D-35032 Marburg, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2004年 / 630卷 / 10期
关键词：
manganese; fluorophosphatomanganate(III); phosphate fluoride; crystal structure; Jahn-Teller effect; chain structure; hydrogen bonds;
D O I：
10.1002/zaac.200400157
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
By adding piperazine to a hydrofluoric and phosphoric acid solution of Manganese(III) fluoride, the fluoride phosphate (pipzH(2))[MnF2(HPO4)(H2O)](H2PO4) can be crystallized. Its structure is built by piperazinium(2+) cations, (H2PO4)(-) anions, and an anionic double-chain of [HPO4] tetrahedra and [MnO3F2(H2O)] octahedra. The structure is triclinic, space group P (1) over bar, Z = 2, a = 622.97(4), b = 923.46(6), c = 1183.62(7) pm, alpha = 98.343(6)degrees, beta = 100.747(7)degrees, gamma = 107.642(5)degrees, R = 0.0289. It is worth noting that a ferrodistortive Jahn-Teller order is observed with [MnO3F2(H2O)] octahedra strongly elongated along the F-Mn-OH2 axes perpendicular to the chain plane. The structure is stabilized by very strong hydrogen bonds.
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收藏
页码：1459 / 1461
页数：3
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