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| Two new coordination polymers, [M(phen)(e,a-cis-1,4-chdc)(H2O)]n (1, M = Mn; 2, M = Cu; chdc = 1,4-cyclohexanedicarboxylic acid; phen = 1,10-phenanthroline), were prepared under hydrothermal conditions and characterized by IR spectra and single crystal X-ray diffraction analysis. X-ray crystal structural analyses reveal that 1 and 2 are isomorphic and belong to the monoclinic system. C20H20MnN2O5, P2(1)/c, a = 10.235(2) Å, b = 8.9134(19) Å, c = 20.466(4) Å, b = 99.820(3)°, Z = 4 for 1; and C20H20CuN2O5, P21/c, a = 10.002(3) Å, b = 8.949(2) Å, c = 20.270(5) Å, b = 99.694(3)° Z = 4 for 2. In the structures of 1 and 2, the 1,4-chdc ligand possesses only one kind of e,a-cis conformation although there are both cis- and trans-conformations in the raw material. |
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| Keywords:1,4-cyclohexanedicarboxylic acid; phenanthroline; Manganese; Copper; Crystal structure |
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