Diversity of coordination architecture of silver(I) complexes with different 2-aminopyrimidyl derivatives : Effect of counter anions and ligands
Diversity of coordination architecture of silver(I) complexes with different 2-aminopyrimidyl derivatives : Effect of counter anions and ligands
复制标题
DOI：
10.1016/j.poly.2008.06.003
复制
发表时间：
2008-09
期刊：
影响因子：
2.6
通讯作者：
Geng-Geng Luo-Geng;Rong-Bin Huang;Jian-Hua Chen;Li-Rong Lin;Lan-Sun Zheng
中科院分区：
文献类型：
--
作者：
Geng-Geng Luo-Geng;Rong-Bin Huang;Jian-Hua Chen;Li-Rong Lin;Lan-Sun Zheng
通过不同的银（I）盐与相应的2-氨基嘧啶配体反应，合成了五种新的银（I）配合物[Ag（L1）（CF 3SO 3）（H2O）]n（1），[Ag 4（L1）4（CF 3CO 2）4]n（2），[Ag 2（L1）4（ClO 4）2]（3），[Ag（L2）（ClO 4）]n（4）和[Ag（L3）（ClO 4）]n（5（即，2-氨基-4，6-二甲基嘧啶（L1）、2-氨基-4-甲氧基-6-甲基嘧啶（L2）和2-氨基-4，6-二甲氧基嘧啶（L3））。讨论了抗衡阴离子和配体对配合物结构的影响。用相同的配体L1和不同的银（I）盐合成了两种配合物，一种为一维锯齿链，另一种为一维梯形网络.另一方面，在相同的合成条件下，使用相同的高氯酸银（I）但不同的配体，分别分离出配合物3-5。在化合物3中，2个金属原子和4个L1配体形成二聚体[Ag 2（L1）4]，并通过分子间氢键和π-π相互作用连接形成无限二维层状结构.复合体4显示二维（2D）网格网络。配合物5具有一维之字形链，但与1不同。一个扩展的3D结构由N-H···O分子间氢键和Ag···O弱相互作用组成。结果表明，抗衡阴离子和有机配体的性质对配合物的结构都有很大的影响。此外，氢键相互作用和π-π堆积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(Ι) complexes of the formula [Ag(L1)(CF3SO3)(H2O)]n(1), [Ag4(L1)4(CF3CO2)4]n(2), [Ag2(L1)4(ClO4)2] (3), [Ag(L2)(ClO4)]n(4), and [Ag(L3)(ClO4)]n(5) have been synthesized by reactions of varied silver(Ι) salts with the corresponding 2-aminopyrimidyl ligands (namely, 2-amino-4,6-dimethylpyrimidine (L1), 2-amino-4-methoxy-6-methylprimidine (L2), and 2-amino-4,6-dimethoxyprimidine (L3)). The influences of counter anions and ligands on the structure of the complexes are discussed. Two complexes, 1 with one-dimensional (1D) zigzag chain and 2 with 1D ladder network are obtained by using the same ligand L1but different silver(Ι) salts. On the other hand, using the same silver(Ι) perchlorate but different ligands under the same synthetic conditions, complexes 3–5 are isolated, respectively. In the case of 3, two metal atoms and four L1ligands form dimeric [Ag2(L1)4] unit further connected by intermolecular hydrogen bonds and π–π interactions to form an infinite 2D layer structure. Complex 4 displays a two-dimensional (2D) grid network. Complex 5 has a 1D zigzag chain but different from that of 1. An extended 3D framework arises from N–H···O intermolecular hydrogen bonds and Ag···O weak interaction. The results reveal that the nature of the counter anions and organic ligands all has great impact on the structure of the complexes. In addition, the hydrogen-bonding interactions and π–π stacking 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.