Assembly of a series of zinc coordination polymers based on 1,4-bis[2-(4-pyridyl)ethenyl]-2,3,5,6-tetramethylbenzene and 1,3-benzenedicarboxylate derivatives
作者:Yu Ge、Ni-Ya Li、Xue-Ying Ji、Jun-Feng Wang、Dong Liu、Xiao-Yan Tang
DOI:10.1039/c4ce00696h
日期:——
Five new coordination polymers, namely, [Zn(1,3-BDC)(1,4-bpetmb)]n (1), [Zn2(5-Cl-1,3-BDC)2(1,4-bpetmb)2]·MeCN}n (2), [Zn(5-NO2-1,3-BDC)(1,4-bpetmb)0.5]n (3), [Zn(5-NH2-1,3-BDC)(1,4-bpetmb)0.5]·2H2O}n (4) and [Zn2(μ-OH)(1,3,5-BTC)(1,4-bpetmb)]n (5) have been synthesized under solvothermal conditions, based on the bis-pyridyl linker 1,4-bis[2-(4-pyridyl)ethenyl]-2,3,5,6-tetramethylbenzene (1,4-bpetmb) along with 1,3-benzenedicarboxylate (1,3-BDC) or its derivatives such as 5-chloro-1,3-benzenedicarboxylate (5-Cl-1,3-BDC), 5-nitro-1,3-benzenedicarboxylate (5-NO2-1,3-BDC), 5-amino-1,3-benzenedicarboxylate (5-NH2-1,3-BDC) and 1,3,5-benzenetricarboxylate (1,3,5-BTC). Compounds 1–5 have been characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD) and unambiguously by single crystal X-ray diffraction analysis. 1 and 2 feature the 2D (4,4) net. 3 comprises an interlocked 3D framework, and the 3D framework is derived from the inclined interpenetration of the 2D (4,4) net. 4 exhibits a thick 2D (3,4)-connected network with a Schläfli symbol of (63)(65·8). 5 displays a 3D two-fold interpenetrating (3,5)-connected framework with the Schläfli symbol of (63)(67·83). Thermal stability and solid-state photoluminescence properties of 1–5 were also investigated.
五种新型配位聚合物,即 [Zn(1,3-BDC)(1,4-bpetmb)]n (1)、[Zn2(5-Cl-1,3-BDC)2(1,4-bpetmb)2]·MeCN}n (2)、[Zn(5-NO2-1,3-BDC)(1,4-bpetmb)0.5]n (3)、[Zn(5-NH2-1,3-BDC)(1,4-bpetmb)0.5]·2H2O}n (4) 和 [Zn2(μ-OH)(1,3,5-BTC)(1,4-bpetmb)]n (5) 是在溶剂热条件下合成的,基于双吡啶链连接体 1,4-bis[2-(4-pyridyl)ethenyl]-2,3,5,6-tetramethylbenzene (1,4-bpetmb) 以及 1,3-苯二羧酸盐 (1,3-BDC) 或其衍生物,如 5-氯-1,3-苯二羧酸盐 (5-Cl-1,3-BDC)、5-硝基-1,3-苯二羧酸盐 (5-NO2-1,3-BDC)、5-氨基-1,3-苯二羧酸盐 (5-NH2-1,3-BDC) 和 1,3,5-苯三羧酸盐 (1,3,5-BTC)。化合物 1–5 经过元素分析、红外光谱、粉末 X 射线衍射 (PXRD) 及单晶 X 射线衍射分析得到了明确的表征。化合物 1 和 2 具有 2D (4,4) 网。化合物 3 包含一个互锁的 3D 框架,该 3D 框架源于 2D (4,4) 网的倾斜交错。化合物 4 显示出一个厚实的 2D (3,4) 连接网络,Schläfli 符号为 (63)(65·8)。化合物 5 展现出一个 3D 两重交错的 (3,5) 连接框架,Schläfli 符号为 (63)(67·83)。对 1–5 的热稳定性和固态光致发光性质也进行了研究。