Syntheses,structures and luminescence of three copper(I) cyanide coordination polymers incorporating flexible N-donor ligands |
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Affiliation: | 1. Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China;2. Laboratory for Microstructures, Shanghai University, Shanghai 200444, PR China |
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Abstract: | Three copper(I) cyanide coordination polymers, namely Cu8(CN)8(btmb)2]n (1), Cu(CN)(btmb)0.5]n (2) and Cu2(CN)2(dpa)]n (3) (btmb = 1,4-bis(1,2,4-triazol-1-ylmethyl)benzene, dpa = di(4-pyridyl)amine), were synthesized under hydrothermal conditions and characterized by elemental analyses, IR spectra, PXRD and thermogravimetric analyses. Single-crystal X-ray diffraction analyses reveal that complex 1 is an interesting 2D double-layered network constructing from eight distinct Cu(I) centers, eight μ2-cyanides and two tetradentate cis-btmb ligands. Complex 2 is a ladder-like coordination polymer assembled by CuCN linear chain and bidentate trans-btmb linker. Complex 3 has a 2D wave-like network constructing from CuCN zigzag chain and V-shape dpa spacer. These coordination polymers are thermally stable up to 270–300 °C. They emit blue luminescence originating from ligand-centered emission. |
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