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

页码：1756 / 1758

页数：3

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