New inorganic-organic coordination polymers generated from rigid or flexible bidentate ligands and Co(NCS)2•xH2O

被引：46

作者：

Dong, YB ^{[1
]}

Smith, MD ^{[1
]}

zur Loye, HC ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2000年 / 155卷 / 01期

基金：

美国国家科学基金会;

关键词：

coordination polymers; framework materials; hydrogen bonding; Schiff-base ligands;

D O I：

10.1006/jssc.2000.8915

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The coordination chemistry of the long rigid bidentate Schiff-base ligands 1,4-bis (3-pyridyl)-2,3-diaza-1,3-butadiene (L1), 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene (L2), and of the flexible ligand 1,3-bis(4-pyridyl) propane with Co(NCS)(2).xH(2)O has been investigated. Three new coordination polymers were prepared and fully characterized by infrared spectroscopy, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. The magnetic behavior of all compounds was also investigated and found to follow the Curie law. [Co(NCS)(2)(L1)(2).2CH(2)Cl(2)](n) (1, monoclinic, C2/m; a = 11.995(2) Angstrom, b = 14.596(3) Angstrom, c = 10.846(2) Angstrom, beta = 110.99(3)degrees, Z = 2) features a two-dimensional non-interpenetrating distorted square pattern. [Co(NCS)(2)(L2)(2)](n) (2, monoclinic, P2(1)/n; a = 9.5315(19) Angstrom, b = 17.299(4) Angstrom, c = 9.6646(19) Angstrom, beta = 99.11(3)degrees, Z = 2) features a one-dimensional ring-like chain motif. Important C-H...S hydrogen bonding interactions exist in 2, which play a significant role in aligning the polymer strands in the crystalline solid. [Co (1,3-bis(4-pyridyl) propane)(2)(NCS)(2).0.33 H2O](n) (3, monoclinic, P2(1)/n; a = 18.701(4) Angstrom, b = 16.593(3) Angstrom, c = 20.696(4) Angstrom, beta = 114.45(3)degrees, Z = 4) exhibits a polymeric pattern similar to that of 1. Ail three compounds feature similar {CoN6} pseudooctahedral coordination spheres, (C) 2000 Academic Press.

引用

页码：143 / 153

页数：11

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