Ag(I) complexes containing N-phenyl-N′-cyano-formamidine:: Syntheses, structures, and ligand conformations
Ag(I) complexes containing N-phenyl-N′-cyano-formamidine:: Syntheses, structures, and ligand conformations
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DOI：
10.1021/cg070342h
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发表时间：
2008-02-01
影响因子：
3.8
通讯作者：
Lai, J. Y.
中科院分区：
文献类型：
--
作者：
Chiang, Liang-Mao;Yeh, Chun-Wei;Lai, J. Y.
不对称配体N-苯基-N '-氰基甲马尼克林（L）与AgX的反应（X = NO_3 ~-、SO_3CF_3 ~-、BF_4 ~-）得到配合物[AgL_3NO_3]（1）、[AgL_3SO_3CF_3]（2）和[AgL_3SO_3CF_3]（3）。（无穷大）（2）和[AgLBF 4]（infinity）（3），而L与AgClO_4在四氢呋喃中于室温和室温下反应得到[AgLClO_4]的两种超分子异构体。（无穷大）（4）和（5）。通过X射线晶体学对配合物进行了表征，证实配合物2-5为配位聚合物。配合物1是一个三角形平面分子，三个L通过氰基氮原子与Ag（I）金属中心配位。配合物2-4的阳离子形成一维锯齿形链，而5的阳离子显示螺旋链，其通过不对称配体L的η（3）π-供体行为互连以形成二维聚合物片。配合物1中的L配体为顺式构象，配合物2-5中的L配体为反式构象。
The reactions of the unsymmetrical ligand N-phenyl-N'-cyano-formarnicline (L) with AgX (X = NO3-, SO3CF3-, and BF4-) afforded the complexes [AgL3NO3] (1), [AgLSO3CF3](infinity) (2) and [AgLBF4](infinity) (3), whereas the reactions of L with AgClO4 in tetrahydrofuran at room temperature and at refluxing temperature afforded two supramolecular isomers of [AgLClO4](infinity) (4) and (5), respectively. These complexes were characterized by X-ray crystallography, which confirmed that complexes 2-5 are coordination polymers. Complex 1 is a triangular planar molecule with three L's coordinating to the Ag(I) metal center through the cyano nitrogen atoms. While the cations of complexes 2-4 form one-dimensional zigzag chains, those of 5 show helical chains that are interlinked through eta(3) pi-donor behavior of the unsymmetrical ligand L to form two-dimensional polymeric sheets. The L ligands in complex 1 adopt the syn conformation, and those in 2-5 adopt the anti conformation.