title: Solvothermal syntheses, structures, and physical properties of four new coordination compounds constructed from a bent dicarboxylate ligand.
abstract: Four new coordination compounds, namely {[Cd(3)(L)(2)(mu(3)-OH)(2)(H(2)O)] x H(2)O}(n) (1), {Ni(L)(bipy)}(n) (2), {Cu(3)(L)(2)(bipy)(mu(2)-OH)(2)(DMF)(2)}(n) (3), and {Co(2)L(2)(H(2)L)(H(2)O)}(n) (4), have been synthesized by the solvothermal reaction of 4,4'-(hexafluoroisopropylidene)bis(benzoic acid) (H(2)L) with different transition metal ions in the presence of co-ligand 4,4'-bipyridine (bipy). Compound 1 displays a three-dimensional (3D) framework containing infinite bands constructed of heptanuclear cadmium clusters. In compound 2, [Ni(2)C(2)O(4)] secondary building units (SBUs) are linked by L(2-) ligands into a 1D ribbon, which are further assembled into a two-dimensional (2D) non-interpenetrated structure with {4(4) x 6(2)} topology. Compound 3 possesses a 3D framework with a new topology of {4(3)}(2){4(6) x 6(14) x 8(8)} net, while the structure of 4 is a duplicate interpenetrated 3D framework with {4(12) x 6(3)} net. Temperature-dependent magnetic studies reveal that 3 exhibits ferromagnetic coupling between adjacent Cu(II) ions. The photoluminescent property of 1 has been studied in the solid state at room temperature.
authors.affiliation: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, 210093, PR China.
authors.forename: Changchun
authors.initials: C
authors.lastname: Ji
authors.forename: Liangfang
authors.initials: L
authors.lastname: Huang
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Hegen
authors.initials: H
authors.lastname: Zheng
authors.forename: Yizhi
authors.initials: Y
authors.lastname: Li
authors.forename: Zijian
authors.initials: Z
authors.lastname: Guo