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A one‐dimensional cadmium metal–organic chain based on a [Cd4(COO)4] secondary building unit and a flexible dicarboxylic acid ligand

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An infinite one‐dimensional cadmium metal–organic chain, namely catena‐poly[aquabis(μ3‐2,2′‐{[1,2‐phenylenebis(methylene)]bis(sulfanediyl)}dibenzoato)dicadmium(II)], [Cd2(C22H16O4S2)2(H2O)] n , was synthesized by solvothermal reaction of Cd(NO3)2ยท4H2O and 2,2′‐{[1,2‐phenylenebis(methylene)]bis(sulfanediyl)}dibenzoic acid (H2 L). The CdII centres have six‐coordinate CdS2O4 and CdSO5 geometries. Due to the flexible –CH2–S– arms, the L 2− ligand adopts both syn and anti conformations. Four CdII cations are linked by two syn L 2− ligands to form a centrosymmetric planar tetranuclear CdII core, which is further extended through bonding to the anti L 2− ligands to form a one‐dimensional metal–organic chain. Adjacent one‐dimensional chains are connected by C—H...π interactions and nonclassical C—H...O hydrogen bonds to form the resultant three‐dimensional supramolecular framework.
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Document Type: Research Article

Affiliations: Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, People's Republic of China

Publication date: October 15, 2013

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