Novel hydrogen-bonded two- and three-dimensional networks generated from the reaction of metal nitrate hydrates (M = Cd, Co) with the bidentate linear ligand 4,4′-bipyridine

被引:109
|
作者
Dong, YB [1 ]
Smith, MD [1 ]
Layland, RC [1 ]
zur Loye, HC [1 ]
机构
[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA
关键词
D O I
10.1039/a909014b
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Two new hydrogen-bonded coordination polymers have been prepared using the transition metal nitrate hydrates Cd(NO3)(2). 4H(2)O and Co(NO3)(2). 6H(2)O in combination with the organic bidentate ligand 4,4'-bipyridine: Cd-2(H2O)(4)(bipy)(5)(NO3)(2)(PF6)(2) (1) (bipy = 4,4'-bipyridine) and [Co(H2O)(4)(bipy)][PF6](2). 3bipy (2). The compounds were characterized by single crystal X-ray diffraction, IR spectroscopy, and thermogravimetric analysis. Compound 1 shows a novel hydrogen bonded brick wall motif assembled from unprecedented dimeric "H-shaped" [Cd-2(bipy)(5)] building blocks via a new complementary binary hydrogen bonding bridge. Compound 2 forms a novel three-dimensional network based on [Co(H2O)(4)(bipy)](n) linear polymer chains which are cross-linked to each other by a new type of Co-H2O(2)... bipy ... H2O(1)... bipy ... H2O(1)... bipy ... H2O(2)-Co hydrogen bonding linkage.
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页码:775 / 780
页数:6
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