metal-organic compounds
A one-dimensional coordination polymer, namely catena-poly[[aquapyridinecadmium(II)]-μ3-{4,4′-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoato}], [Cd(C25H22O4)(C5H5N)(H2O)]n, has been synthesized by a biphasic solvothermal reaction. The CdII cation is located in a CdO5N six-coordinated environment. The trans 4,4′-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoate ligand connects the CdII cations to form a one-dimensional ribbon incorporating centrosymmetric [Cd2(COO)2] secondary building units. Inter-ribbon O—HO hydrogen bonds extend the one-dimensional ribbons into a two-dimensional sheet. No π–π interactions are observed. Comparing products synthesized using a different method, it was found that biphasic solvothermal conditions play a crucial role in obtaining large well-shaped single crystals; only intractable precipitates were obtained by the traditional single-phase solvothermal method.