Dalton Transactions (2010)

Hydrothermal synthesis, crystal structure and properties of Ag(I)-4f compounds based on 1H-benzimidazole-5,6-dicarboxylic acid
Yaquang Sun, Yong-Li Wu, Gang Xiong, Philippe F. Smet, Fu Ding, Mei-yan Guo, Ming-chang Zhu, En-jun Gao, Dirk Poelman, Francis Verpoort
Dalton Transactions 39 (2010) 11383-11395

Abstract
Seven novel heterometallic coordination polymers [CeAg(Hbidc)2(H2O)2]1 and [LnAg(Hbidc)2].3(H2O)[Ln = Sm (2), Gd (3), Tb (4), Dy (5), Ho (6), Er (7), H3bidc = 1H-benzimidazole-5,6-dicarboxylic acid] have been synthesized under hydrothermal conditions and characterized by elemental analysis, FT-IR, TG analysis, and single crystal X-ray diffraction. X-Ray analysis revealed that the seven complexes present two different types of three-dimensional (3D) structures. Complex 1 crystallized in an orthorhombic manner having a Pna21 space group, consisting of a 3D framework with a 1D heterometallic chain. Polymers 2-7 are isostructural and crystallized in an orthorhombic fashion having a Pccn space group existing of a two-fold interpenetrating 3D framework. The luminescence properties and the magnetic properties of all polymers were investigated.

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