Syntheses and structures of two new Cu/Nb/pyrazine complexes: Three dimensional CuNb(pyz)(2)OF5 center dot(pyz)(H2O) and two dimensional [Cu(pyz)(2.5)](+)[NbF6](-)center dot(pyz)

被引：39

作者：

Halasyamani, P ^{[1
]}

Heier, KR ^{[1
]}

Willis, MJ ^{[1
]}

Stern, CL ^{[1
]}

Poeppelmeier, KR ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1996年 / 622卷 / 03期

关键词：

copper niobium pyrazine complexes; syntheses; crystal structures;

D O I：

10.1002/zaac.19966220316

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Crystals of CuNb(pyz)(2)OF5 . (pyz)(H2O) (1) and [Cu(pyz)(2.5)](+)[NbF6](-) . (pyz) (2) were grown (150 degrees C and autogeneous pressures) from CuO, 1/2(Nb2O5), (HF), pyridine, and H2O in excess pyrazine. Light blue single crystals of (1) are orthorhombic, crystallizing in space group Cccm (No. 66), with a = 14.547(1) Angstrom, b = 16.135(2) Angstrom, c = 13.803(2) Angstrom, and Z = 8. The structure of (1) contains corner shared [Cu(pyz)(4/2)F-2/2](+), [Cu(pyz)(4/2)O-2/2], and [NbF4O1/2F1/2](-0.5) octahedra. Orange crystals of (2) are monoclinic, crystallizing in space group C2/c (No.15), with a = 11.792(8) Angstrom, b = 17.123(3) Angstrom, c = 17.051(5) Angstrom, beta = 90.04(4)degrees, and Z = 8. The structure of (2) contains puckered rings of corner shared [Cu(pyz)(pyz)(3/2)](+) tetrahedra and isolated [NbF6](-) anions within the rings.

引用

页码：479 / 485

页数：7

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