2015•结构化学Requires access
Synthesis and Crystal Structure of a 2D Sm（III） Coordination Polymer： {[Sm2L3（H2O）4]·（4,4＇-bpy）·3H2O}n
Guo, Jing, Yang, Mingxing, Chen, Lijuan, Huang, Qiu-Feng, Lin, Shen
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Abstract
A new compound, {[Sm2L3(H2O)4]·(4,4?-bpy)·3H2O}n(1, H2 L = 5-(3-pyridyl methoxy) isophthalic acid, 4,4?-bpy = 4,4?-dipyridyl), has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 11.266(2), b = 15.530(3), c = 16.711(3) ?, α = 112.803(3), β = 90.526(1), γ = 94.006(3)°, V = 2686.6(9) ?3, Z = 2, Dc = 1.727 g/cm3, μ = 2.251 mm-1, F(000) = 1392, S = 0.999, the final R = 0.0296 and wR = 0.1058. In the title compound, two crystallographically independent Sm3+ cations are bridged by the carboxyl group of L2- ligands to form two different {Sm2} binuclear subunits which are further connected by two distinct L2- ligands to shape a 1D chain, and such 1D chains are linked up to generate a 2D coordination polymer by another crystallographically unique L2- ligand. The thermogravimetric analysis and luminescent property of the title compound were also investigated.