title: Biphase synthesis of a one-dimensional coordination polymer based on a dinuclear Cd(II) secondary building unit and a novel semi-rigid dicarboxylate.
abstract: A one-dimensional coordination polymer, namely catena-poly[[aquapyridinecadmium(II)]-μ(3)-{4,4'-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoato}], [Cd(C(25)H(22)O(4))(C(5)H(5)N)(H(2)O)](n), has been synthesized by a biphasic solvothermal reaction. The Cd(II) cation is located in a CdO(5)N six-coordinated environment. The trans 4,4'-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoate ligand connects the Cd(II) cations to form a one-dimensional ribbon incorporating centrosymmetric [Cd(2)(COO)(2)] secondary building units. Inter-ribbon O-H...O 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.
authors.affiliation: Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, People's Republic of China.
authors.forename: Xiaolai
authors.initials: X
authors.lastname: Zhang
authors.forename: Weiyong
authors.initials: W
authors.lastname: Ying