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Abstract
Two coordination polymers, {[Ni0.5(4,4′-bib)Cl][(4,4′-bib)0.5]·H2O}
n
(1) and {[Co(4,4′-bib)3(H2O)2][NO3]2·H2O}
n
(2) (4,4′-bib = 4,4′-bis(imidazol-1-yl)biphenyl) have been hydrothermally synthesized. Their structures have been determined by single-crystal X-ray diffraction analyses and are further characterized by elemental analyses, IR, thermogravimetric analyses, and powder X-ray diffraction. In 1, each NiII is linked by four μ
2–4,4′-bib ligands in 2-D (4,4)-networks, which are further connected through host–guest interaction to form a 3-D packing diagram with 1-D channels. In 2, each CoII is linked by two μ
2–4,4′-bib and two μ
1–4,4′-bib ligands in a 1-D zigzag chain, further connected through non-covalent interactions (including O–HN, O–H
O, C–H
π, and π
π interactions) to form a 3-D supramolecular structure. 4,4′-bib exhibits μ
2-, μ
1-, and μ
0-coordination during the construction of 1 and 2. From the topological view, the overall structures of 1 and 2 possess (46) topology.
Acknowledgments
The work was supported by Natural Science Foundation of Shandong Province (ZR2012CM019).