金属有机骨架材料作为一种新型的多孔材料,以其良好的结构可裁剪性和易功能化的特征已经成为材料化学领域中的一个研究热点,其中以芳香多羧酸与金属中心构筑的具有开放骨架的配位聚合物最为常见,有些化合物在去除孔道中的溶剂后仍然可以保持骨架的完整性,比表面积和孔体积大于相类似孔道的分子筛.
A three-dimensional(3D) lanthanide metal-organic coordination polymer with a three-dimensional open framework, Tm (BTC) (DMF) (DMSO), was synthesized by reaction of the lanthanide ions( Tm^3+ ) with 1, 3, 5-benzenetricarboxylic acid ( H3BTC ) in a mixed solution of DMF ( N, N'-dimethylformarnide ) and DMSO(dimethyl sulphoxide). This compound crystallizes in a monoclinic space group P2(1/n) with unit cell parameters a = 1. 0801 (2) nm, b = 1. 5550 (3) nm, c = 1. 0906 (2) nm, β = 100. 401 °, V = 1. 8017 (6) nm^3 and Z =4. The compound exhibits one-dimensional channels along the [ 100] direction and could uptake carbon dioxide at 1 ×10^5 Pa.