The layered structure of Cu2(H2O)4[C4H4N2][C6H2(COO)4].2H2O

被引：3
|
作者：
Köferstein, R [1 ]
Robl, C [1 ]
机构：
[1] Univ Jena, Inst Anogan & Analyt Chem, D-07743 Jena, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2005年 / 631卷 / 10期
关键词：
copper; pyrazine; pyromellitate; coordination polymer;
D O I：
10.1002/zaac.200500141
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Triclinic single crystals of Cu-2(H2O)(4)[C4H4N2]-[C6H2(COO)(4)]center dot 2H(2)O have been grown in an aqueous silica gel. Space group P (1) over bar (Nr. 2), a = 723.94(7) pm, b = 813.38(14) pm, c = 931.0(2) pm, alpha = 74.24(2)degrees, P = 79.24(2)degrees, gamma = 65.451(10)degrees, V = 0.47819(14) nm(3), Z = 1. Cu2+ is coordinated in a distorted, octahedral manner by two water molecules, three oxygen atoms of the pyromellitate anions and one nitrogen atom of pyrazine (Cu-O 194.1(2)-229.3(3)pm; Cu-N 202.0(2)pm). The connection of Cu2+ and [C6H2(COO)(4))](4-) yields infinite strands, which are linked by pyrazine molecules to form a two-dimensional coordination polymer. Thermogravimetric analysis in air showed that the dehydrated compound was stable between 175 and 248 degrees C. Further heating yielded CuO.
引用
收藏
页码：1756 / 1758
页数：3
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