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Structural Diversity in Oxadiazole-Containing Silver Complexes Dependent on the Anions

Long Zhao, Long-Yan Xie, Xiu-Li Du, Kai Zheng, Ting Xie, Rui-Rui Huang, Jie Qin, Jian-Ping Ma, Li-Hong Ding

Abstract


Two coordination polymers, namely [Ag2(L)(SO3CF3)(H2O)](SO3CF3)•CH2Cl2 (1) and [Ag5(L)4(H2O)2](SbF6)5•5THF (2), were obtained by reacting oxadiazole-containing tri-armed ligand 1,3,5-tri(2-methylthio-1,3,4-oxadiazole-5yl) benzene (L) and silver salts in CH2Cl2/THF medium. The two complexes crystallized in the tetragonal space group I41/a and orthorhombic space group Fdd2, respectively. The Single-crystal X-ray diffraction revealed that the two complexes exhibit strikingly different 3D polymeric structures, which can be ascribed to the different counter anions. L in compound 1 acted as a hexa-dentate ligand, binding to two types of Ag+ atoms to form a 3D polymeric structure. L in compound 2 acted as a hexa- and penta-dentate ligand, binding to three types of Ag+ atoms to form the 3D polymeric structure. The antibacterial activity of the complexes was also investigated.


Keywords


Coordination polymers; oxadiazole-containing spacer; counter anions; antibacterial activity

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DOI: http://dx.doi.org/10.17344/acsi.2019.5784

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Copyright (c) 2020 Long Zhao, Long-Yan Xie, Xiu-Li Du, Kai Zheng, Ting Xie, Rui-Rui Huang, Jie Qin, Jian-Ping Ma, Li-Hong Ding

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