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首页> 外文期刊>Crystal growth & design >Unusual Ni-Ag mixed-metal, mixed-valence, and cluster-containing coordination polymers generated from nickel-macrocyclic ligand and silver ion by metal-exchange
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Unusual Ni-Ag mixed-metal, mixed-valence, and cluster-containing coordination polymers generated from nickel-macrocyclic ligand and silver ion by metal-exchange

机译：由镍大环配体和银离子通过金属交换生成的不寻常的Ni-Ag混合金属，混合价和含簇配位聚合物

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摘要

A new nickel-macrocyclic complex [Ni(L)] center dot CH2Cl2 (1, L = C24H22N4O3) was synthesized based on a bent oxadiazole bridging ligand terminated by tetradentate N2O2 Schiff-base units. Two novel Ni-Ag mixed-metal, mixed-valence, and cluster-containing coordination polymers, namely, [Ag2Ni(L)](ClO4)(2.5) (2) and [Ag2Ni(L)](BF4)(2.5) (3), generated from 1 and AgX (X = ClO4-, BF4-) were synthesized. During the reactions, unexpected metal-exchange and metal valence-change were observed. These two Ni-Ag coordination polymers are isostructural. They all feature a two-dimensional double-layered concavo-convex structure which is composed of a dual-bowl unit and inixed-valent (Ni2Ni2III)-Ni-II cluster node. Compounds 1-3 were fully characterized by infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction. In addition, the luminescent properties of 1-3 were investigated primarily.
机译：基于弯曲的恶二唑桥联配体，以四齿N2O2席夫碱单元为末端，合成了新的镍-大环配合物[Ni（L）]中心点CH2Cl2（1，L = C24H22N4O3）。两种新颖的Ni-Ag混合金属，化合价和含团簇配位聚合物[Ag2Ni（L）]（ClO4）（2.5）（2）和[Ag2Ni（L）]（BF4）（2.5）由（1）生成的（3）与AgX（X ＝ ClO 4-，BF 4-）合成。在反应过程中，观察到意外的金属交换和金属化合价变化。这两种Ni-Ag配位聚合物是同构的。它们都具有二维双层凹凸结构，该结构由双碗单元和inixed-valent（Ni2Ni2III）-Ni-II簇节点组成。通过红外光谱，元素分析和单晶X射线衍射对化合物1-3进行了全面表征。另外，主要研究了1-3的发光性质。

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