Structural diversity in the (Ag-NO3--2-aminopyrimidyl derivatives) system: New zero-, one-, and two-dimensional inorganic-organic hybrids
Structural diversity in the (Ag-NO3--2-aminopyrimidyl derivatives) system: New zero-, one-, and two-dimensional inorganic-organic hybrids
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DOI：
10.1016/j.poly.2008.07.013
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发表时间：
2008-10
期刊：
影响因子：
2.6
通讯作者：
Geng-Geng Luo-Geng;Rong-Bin Huang;N. Zhang;Li-Rong Lin;Lan-Sun Zheng
中科院分区：
文献类型：
--
作者：
Geng-Geng Luo-Geng;Rong-Bin Huang;N. Zhang;Li-Rong Lin;Lan-Sun Zheng
通过硝酸银（I）与2-氨基嘧啶及其衍生物的反应，合成了5个新的银（I）配合物[Ag（L1）（NO3）]n（1），[Ag 4（L2）6（NO3）4]（2），[Ag（L3）（NO3）]n（3），[Ag 3（L4）3（NO3）3]n（4），[Ag（L4）（NO3）]n（5（即，分别为2-氨基嘧啶（L1）、2-氨基-4，6-二甲基嘧啶（L2）、2-氨基-4-甲氧基-6-甲基嘧啶（L3）和2-氨基-4，6-二甲氧基嘧啶（L4））。讨论了配体取代基和反应溶剂体系对配合物结构的影响。AgNO 3与L1反应生成一维锯齿链（1）。AgNO 3与L2反应生成零维（0-D）四聚体（2）。当使用L3时，获得二维（2-D）网格网络（3）。另一方面，通过使用相同的硝酸银（I）但不同的反应溶剂系统，分别分离出4和5。配合物4具有一维聚合物条带，进一步通过分子间氢键连接以形成二维层结构。而5显示了由24元双环组成的2-D蜂窝状层。结果表明，有机配体的性质和溶剂的选择都对配合物的结构有很大的影响。此外，次级力如氢键相互作用（包括分子内和分子间氢键）也在超分子结构的形成中发挥重要作用，例如，将低维实体连接到高维框架。研究了所合成的银配合物的室温固态发光性能。
Five new silver(I) complexes of the formula [Ag(L1)(NO3)]n(1), [Ag4(L2)6(NO3)4] (2), [Ag(L3)(NO3)]n(3), [Ag3(L4)3(NO3)3]n(4), and [Ag(L4)(NO3)]n(5) have been synthesized by reactions of silver(Ι) nitrate with a family of 2-aminopyrimidine and its derivatives (namely, 2-aminopyrimidine (L1), 2-amino-4,6-dimethylpyrimidine (L2), 2-amino-4-methoxy-6-methylpyrimidine (L3), and 2-amino-4,6-dimethoxypyrimidine (L4), respectively). The influences of substituted groups of ligands and reaction solvent systems on the structure of the complexes are discussed. The reaction of AgNO3with L1yields a one-dimensional (1-D) zigzag chain (1). The reaction of AgNO3with L2leads to a zero-dimensional (0-D) tetramer (2). When L3is used, a two-dimensional (2-D) grid network (3) is obtained. On the other hand, by using the same silver(Ι) nitrate but different reaction solvent systems, 4 and 5 are isolated, respectively. Complex 4 has a 1-D polymeric ribbon further connected by intermolecular hydrogen bonds to form a 2-D layer structure. While 5 shows a 2-D honeycomb-like layer consisting of 24-membered metallocycles. The results reveal that the nature of organic ligands and the choice of solvent all have great impact on the structure of the complexes. In addition, the secondary forces such as hydrogen-bonding interactions including intramolecular and intermolecular hydrogen bonds also play important roles in the formation of supramolecular architectures, for instance, to link low-dimensional entities to high-dimensional frameworks. The luminescence properties of the synthesized silver complexes were investigated in the solid state at room temperature.