Structural variation from 1D to 3D: effects of ligands and solvents on the construction of lead(II)-organic coordination polymers.
Structural variation from 1D to 3D: effects of ligands and solvents on the construction of lead(II)-organic coordination polymers.
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DOI：
10.1002/chem.200600730
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发表时间：
2007-04
期刊：
影响因子：
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通讯作者：
Jin Yang;Guo-dong Li;Jun-Jun Cao-Jun;Qi Yue;Guang-Hua Li;Jie‐Sheng Chen
中科院分区：
文献类型：
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作者：
Jin Yang;Guo-dong Li;Jun-Jun Cao-Jun;Qi Yue;Guang-Hua Li;Jie‐Sheng Chen
一系列铅(II)配位聚合物[铅(NDC)(DPP)](1)，[铅(NDC)(Ptcp)].0.5H2O(2)，[Pb(NDC)(Dppz)](3)，[Pb(NDC)(TCPN)(2)](4)，[Pb2(NDC)2(TCPP)](5)，[Pb(Hndc)2].H2O(6)，[Pb(NDC)(Dma)](7)，NH(CH3)2(10)，其中ndc=1，4-萘二甲酸酯，dpp=4，7-二苯基-1，10-菲咯啉，ptcp=2-phenyl-1H-1，3，7，8-tetraazacyclopenta[l]phenanthrene，dppz=联吡啶并[3，2-a：2‘，3’-c]吩嗪，tcpn=2-(1H-1，3，7，8-tetraazacyclopenta[l]phenanthren-2-yl)naphthol，tcpp=4-(1H-1，3，通过改变配体或溶剂，在水热或溶剂热反应体系中合成了7，8-tetraazacyclopenta[l]phenanthren-2-yl)phenol，dma=N，N-二甲基乙酰胺，bdc=1，4-苯二甲酸甲酯和chdc=1，4-环己二酸甲酯。化合物1-5具有N-给体螯合配体和芳香族二羧酸连接物。化合物1-4是具有不同pi-pi堆积作用的一维聚合物，而化合物5由2D层组成。化合物7、8和10的结构是通过有机酸配体连接铅(II)中心而形成的三维骨架。化合物7是手性的，虽然NDC配体是非手性的，而8的骨架是典型的3D(3，4)连接的网络。化合物10是第一个通过羧酸基桥联的铅(II)轮簇[Pb(8)O(8)]单元的例子。化合物6含有一维链，通过pi-pi相互作用进一步延伸到三维结构。化合物9是由铅(II)中心和反式CHDC配体构成的二维网络。7和8之间以及9和10之间的结构差异表明了溶剂对配位聚合物骨架形成的重要性。通过改变溶剂，H(2)CHDC在9和10中的顺式和反式构象被完全分离。研究了配位聚合物的光致发光和非线性光学性质。
A series of Pb(II) coordination polymers [Pb(ndc)(dpp)] (1), [Pb(ndc)(ptcp)].0.5 H2O (2), [Pb(ndc)(dppz)] (3), [Pb(ndc)(tcpn)(2)] (4), [Pb2(ndc)2(tcpp)] (5), [Pb(Hndc)2].H2O (6), [Pb(ndc)(dma)] (7), [Pb(bdc)(dma)] (8), [Pb(trans-chdc)(H2O)] (9), and [Pb2(cis-chdc)2].NH(CH3)2 (10), where ndc=1,4-naphthalenedicarboxylate, dpp=4,7-diphenyl-1,10-phenanthroline, ptcp=2-phenyl-1H-1,3,7,8-tetraazacyclopenta[l]phenanthrene, dppz=dipyrido[3,2-a:2',3'-c]phenazine, tcpn=2-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)naphthol, tcpp=4-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)phenol, dma=N,N-dimethylacetamide, bdc=1,4-benzenedicarboxylate, and chdc=1,4-cyclohexanedicarboxylate, have been synthesized from a hydrothermal or solvothermal reaction system by varying the ligands or the solvents. Compounds 1-5 crystallize with an N-donor chelating ligand and an aromatic dicarboxylate linker. Compounds 1-4 are 1D polymers with different pi-pi stacking interactions, whereas compound 5 consists of 2D layers. The structures of compounds 7, 8, and 10 are 3D frameworks formed by connection of the Pb(II) centers by organic acid ligands. Compound 7 is chiral although the ndc ligand is achiral, while the framework of 8 is a typical 3D (3,4)-connected net. Compound 10 is the first example of Pb(II) wheel cluster [Pb(8)O(8)] units bridged by carboxylate groups. Compound 6 contains 1D chains which are further extended to a 3D structure by pi-pi interactions. Compound 9 consists of a 2D network constructed by Pb(II) centers and trans-chdc ligands. The structural differences between 7 and 8 and between 9 and 10 indicate the importance of solvents for framework formation of the coordination polymers. By varying the solvent the cis and trans conformations of H(2)chdc in 9 and 10 were separated completely. The photoluminescence and nonlinear optical properties of the coordination polymers have also been investigated.