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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Coinage metal complexes supported by a '(PNP)-P-3' scaffold
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Coinage metal complexes supported by a '(PNP)-P-3' scaffold

机译:由“(PNP)-P-3”支架支撑的制币金属络合物

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摘要

A series of monovalent group 11 complexes, [2,6-{Ph2PNMe}(2)(NC5H3)]CuBr 1, [2,6-{Ph2PNMe}(2)(NC5H3)]-CuOTf 2, [2,6-{Ph2PNMe}(2)(NC5H3)] AgOTf 3, and [2,6-{Ph2PNMe}(2)(NC5H3)](AuCl)(2) 4, supported by a neutral (PNP)-P-3 ligand have been synthesized and characterized by multinuclear NMR and single crystal X-ray diffraction studies. The variation of the coordination properties were analyzed and electronic structure calculations have been carried out to provide insight on the bonding details in these complexes. The Cu(I) complexes displayed an unusual coordination geometry with a tridentate pincer ligand and an overall four coordinate trigonal pyramidal geometry. In contrast the Ag(I) analogue displayed a bidentate kappa(2)-P, P' ligation leaving the pyridyl-N atom uncoordinated and yielding a pyramidalized trigonal planar geometry around Ag. The bimetallic Au(I) complex completed the series and displayed a monodentate P-bonded ligand and a linear coordination geometry.
机译:一系列单价第11组配合物,[2,6- {Ph2PNMe}(2)(NC5H3)] CuBr 1,[2,6- {Ph2PNMe}(2)(NC5H3)]-CuOTf 2,[2,6-由中性(PNP)-P-3配体支撑的{Ph2PNMe}(2)(NC5H3)] AgOTf 3和[2,6- {Ph2PNMe}(2)(NC5H3)](AuCl)(2)4具有通过多核NMR和单晶X射线衍射研究合成并表征。分析了配位特性的变化,并进行了电子结构计算,以提供有关这些配合物中键合细节的见解。 Cu(I)配合物显示出不寻常的配位几何结构,具有三齿钳形配体和整体四坐标三角锥几何结构。相反,Ag(I)类似物显示出双齿的kappa(2)-P,P'连接,使吡啶基-N原子不配位,并在Ag周围产生了金字塔形的三角形平面几何形状。双金属Au(I)配合物完成了系列反应,并显示出单齿P键配体和线性配位几何。

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