Silver(I) Complexes in Coordination Supramolecular System with Bulky Acridine-Based Ligands: Syntheses, Crystal Structures, and Theoretical Investigations on C−H···Ag Close Interaction
作者:Chun-Sen Liu、Pei-Quan Chen、En-Cui Yang、Jin-Lei Tian、Xian-He Bu、Zheng-Ming Li、Hong-Wei Sun、Zhenyang Lin
DOI:10.1021/ic060087a
日期:2006.7.1
presence of obvious C-H...M hydrogen-bonding interactions between the Ag centers and some acridine ring H atoms identified by X-ray diffraction on the basis of the van der Waals radii. Furthermore, as a representative example, full geometry optimization on the basis of the experimental structure, the natural bond orbital (NBO), and topological analysis of 1 were carried out by DFT and AIM (Atoms in Molecules)
在研究过渡金属和具有特定结构的有机配体的配伍结构的过程中,我们制备了两种结构相关的刚性大体积a啶基配体,即9- [3-(2-吡啶基)吡唑-1-基]-a啶( L(1))和9-(1-咪唑基)idine啶(L2),并合成并表征了它们的四个Ag(I)配合物[AgL1](ClO4)} 2(1),[AgL1](NO3 )} 2(2),[AgL2(2)](ClO4)(3)和[(Ag3L2(3))(NO3)](NO3)2(H2O)}(无穷大)(4)。X射线单晶衍射分析表明1和2的结构彼此相似,每个配合物的两个分子内Ag(I)中心都被两个L1配体包围。这形成了一个独特的盒状环状二聚体,通过分子间面对面的连接,它们进一步连接形成1的一维(1D)链和2的二维(2D)网络。pi堆积和/或弱的CH ... O氢键相互作用。3具有单核结构,其通过分子间的Ag ... O和pi ... pi堆叠弱相互作用而进一步