Syntheses and crystal structures of two new coordination polymers of Cd(II) using organic spacer and inorganic-bridging ligands |
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| Authors: | Ananta Kumar Ghosh Debajyoti Ghoshal Michael G. B. Drew Golam Mostafa Nirmalendu Ray Chaudhuri |
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| Affiliation: | (1) Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India;(2) Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom;(3) Department of Physics, Jadavpur University, Kolkata, 700 032, India |
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| Abstract: | Two new cadmium (II) complexes [Cd(hmt)(dca)2] n (1) and [Cd3(hmt)2(SeCN)6(H2O)2] n (2) (hmt=hexamethylenetetramine, dca=dicyanamide) have been synthesized and characterized by X-ray single-crystal analysis. The complex 1 is a 2D rectangular grid of octahedral cadmium (II) with CdN6 chromophore where cadmium centers are doubly bridged by dicyanamide and hmt along a-axis, which are interlinked by dicyanamide running along c-axis. Whereas, complex 2 is a 1D chain of octahedral cadmium (II) with a three-leg ladder topology running along a-axis. The Cd(II) centers are doubly bridged through SeCN (infinite rail) along a-axis and singly bridged by hmt (two-step rung) along c-axis, having cadmium centers with CdSe2N3O and CdSe2N4 chromophores. The adjacent chains through H-bonding between coordinated water and hmt, and Se Se interaction are extended to 2D supramolecular architecture. |
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| Keywords: | Cadmium(II) Coordination polymer Crystal structure Se IEq2" >![]("</a) /content/e0m544581w280036/11224_2006_9017_Article_IEq2.gif" alt=" $$cdots$$" align=" middle" border=" 0" >Se interaction |
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