Two new nickel(II)(cyclen) coordination polymers, {[Ni(cyclen)·(bipy)]·(ClO4)2}n (1) and [Ni(cyclen)]2·(squa)·(ClO4)2 (2) have been synthesized and characterized structurally, where cyclen is 1,4,7,10-tetraazadodecane. Compound 1 crystallizes in the monoclinic system, space group C2/c, with a = 10.5339(17) Å, b = 14.565(2) Å, c = 16.133(3) Å, β = 102.799(2)°, V = 2413.4(7) Å3. Compound 2 crystallizes in the orthorhombic system, space group P nm a with a = 25.722(3) Å, b = 11.1168(12) Å, c = 11.4580(13) Å, V = 3276.3(6) Å3. In both compounds, each NiII center is in a distorted octahedral coordinated environment with four Ncyclen atoms and two Npyridine atoms from 4,4′-bipyridine linker for 1 and two Oaqueou atoms from the coordinated water for 2, respectively. The complex 1 exhibits infinite zigzag 1D chains by linking of 4,4′-bipyridine coordinated. In complex 2, 2D sheet supramolecule generated through self-assembling by hydrogen bond.
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The structures data have been deposited with the Cambridge Crystallographic Data-base Center, CCDC 257050 for 1 and CCDC 258718 for 2, respectively.
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Zhang, Z., Lu, Y. & Guo, J. The effect of organic linkers on the supramolecular structures of two new Ni(II) cyclen complexes (cyclen = 1,4,7,10-tetraazadodecane). J Chem Crystallogr 36, 543–550 (2006). https://doi.org/10.1007/s10870-006-9096-2
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DOI: https://doi.org/10.1007/s10870-006-9096-2