Abstract
Two coordination polymers [Cu(BIM)(suc)] n (1) and [Cd(BIM)(ox)(H2O)] n (2) (where BIM = bis(imidazol-1-yl)methane, suc = succinic dianion, and ox = oxalic dianion) have been solvothermally synthesized and characterized by single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic space group C2/c with a = 12.2302(8) Å, b = 11.4007(6) Å, c = 10.1791(6) Å, β = 118.4090(10)°, V = 1248.38(13) Å3, and Z = 4. Cu(II) is square planar with nitrogen from BIM ligand and oxygen from the suc in the trans arrangement. Each BIM is bidentate bridging two Cu(II)s to generate a 1-D zigzag chain; the suc bridges two Cu(II)s in a monodentate gauche conformation, which results in the formation of wavy 2-D (4, 4) grid arrays. Complex 2 crystallizes in the monoclinic space group P2(1)/n with a = 10.8042(3) Å, b = 9.1053(2) Å, c = 12.0134(6) Å, β = 96.394(1)°, V = 1174.47(7) Å3, and Z = 4. Cd(II) is coordinated in a distorted decahedral geometry. Each BIM is bidentate bridging two Cd(II)s to form a 1-D infinite zigzag chain; each ox bridges two neighboring Cd(II)s in a distinct zigzag chain in a chelating/chelating coordination mode, which extends the 1-D chain to a 2-D supramolecular network.
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