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首页> 外文期刊>Crystal growth & design >Ag(I) complexes containing flexible N,N '-di(2-pyridyl)adipoamide ligands: Syntheses, structures, and ligand conformations
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Ag(I) complexes containing flexible N,N '-di(2-pyridyl)adipoamide ligands: Syntheses, structures, and ligand conformations

机译:含柔性N,N'-二(2-吡啶基)己二酰胺配体的Ag(I)配合物:合成,结构和配体构象

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摘要

A new flexible ligand N,N'-di(2-pyridyl)adipoamide), LCDCl3 (1), and L center dot 2H(2)O (2), and a series of polymeric complexes of the types [AgLNO3](infinity), (3); [AgLPF6](infinity), (4); [AgLBF4CH3CN(H2O)(0.5)](infinity), (5); [AgLClO4CH3CN](infinity), (6); [AgLClO4(H2O)(0.67)](infinity), (7), and [Ag2L2.5SO4](infinity), (8), are reported. All the complexes have been structurally characterized by X-ray crystallography, confirming that complexes 3-8 are coordination polymers. The cations of 3-6 form zigzag chains, while those of 7 are helical. Complex 8 forms sinusoidal chains, which demonstrates an unusual coexistence of three ligand conformers in a coordination polymer. While L's in 1 and 2 adopt GAG trans and AAA trans conformations, respectively, all the ligands in 3-7 adopt the AAA trans conformation, and the three independent L's in 8 adopt GGG cis, AAA trans, and AGA cis conformations, respectively. These conformations also differ in the dihedral angle between the two pyridyl rings.
机译:一种新的柔性配体N,N'-二(2-吡啶基)己二酰胺),LCDCl3(1)和L中心点2H(2)O(2)以及一系列[AgLNO3](无穷大)类型的聚合物配合物),(3); [AgLPF6](无穷大),(4); [AgLBF4CH3CN(H2O)(0.5)](无穷大),(5); [AgLClO4CH3CN](无穷大),(6);报告了[AgLClO4(H2O)(0.67)](无穷大)(7)和[Ag2L2.5SO4](无穷大)(8)。所有配合物均已通过X射线晶体学进行了结构表征,证实了配合物3-8是配位聚合物。 3-6个阳离子形成锯齿形链,而7个阳离子则呈螺旋形。配合物8形成正弦链,表明配位聚合物中三个配体构象异构体异常共存。 1和2中的L分别采用GAG反式和AAA反式构象,而3-7中的所有配体均采用AAA反式构象,而8中的三个独立L分别采用GGG顺式,AAA反式和AGA顺式构象。这些构象的两个吡啶环之间的二面角也不同。

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