Organic carboxylate ligands tuned structural variations of two new Cd(II) coordination polymers: From 2D layer to 3D framework

摘要

Two new Cd(II) coordination polymers, namely [Cd(4,4'-sdb) (biimpy)](n)center dot 1.5n(H2O) (1) and [Cd-2(Htci)(2)(biimpy)(2)](n) (2) (4,4'-H(2)sdb = 4,4'-sulfonyldibenzoate, H(3)tci = tri(2-carboxyethyl)isocyanurate and biimpy = 2,6-bis(1-imdazoly)pyridine), have been synthesized by the hydrothermal reactions of Cd(NO3)(2) and the mixed ligands of 4,4'-H(2)sdb and biimpy or H(3)tci and biimpy. Single crystal X-ray structural analyses reveal that compound 1 features a 2D layered structure with 3-connected topology, and compound 2 features a 3D framework with 6-connected 6T8 topology. In addition, the thermal stabilities and luminescent properties of compounds 1 and 2 were also investigated. (C) 2015 Elsevier B.V. All rights reserved.