Effect of central metals and N-donor ligands on the architectures of a series of coordination polymers based on a bis(sulfanediyl) thiadiazole diacetate. (28th May 2015)

• Record Type: Journal Article
• Authors: Wang, Xiu-Li; Liu, Dan-Na; Yang, Song; Liu, Guo-Cheng; Mu, Bao; Lin, Hong-Yan
• Is Part Of: Polyhedron. Volume 92(2015)
• Page Start: 147
• Page End: 155
• Publication Date: 2015-05-28
• Subjects: Coordination polymer -- S-/thiadiazole-containing dicarboxylate -- N-donor ligand -- Crystal structure -- Fluorescence property; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2015.03.024
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Five coordination polymers based on a S-containing dicarboxylate and different N-donor ligands have been hydrothermally synthesized. The central metals and N-donor ligands have great influence on the final structures of title complexes. Abstract: Five new transition metal coordination polymers, namely, [Co(bbbm)(BSTDA)] (1 ), [Co(bdmbmb)(BSTDA)(H2 O)]·(H2 O) (2 ), [Ni(bbbm)(BSTDA)(H2 O)2 ] (3 ), [Ni2 (3-dpyh)2 (BSTDA)2 (H2 O)] (4 ) and [Cd(bbbm)1.5 (BSTDA)] (5 ) have been synthesized from an S-/thiadiazole-containing dicarboxylate [H2 BSTDA = bis(sulfanediyl) thiadiazole diacetic acid] and different flexible/semi-rigid N-donor ligands [bbbm = 1, 1-(1, 4-butanediyl) bis-1H-benzimidazole, bdmbmb = 1, 4-bis(5, 6-dimethylbenzimidazole-1-yl)benzene and 3-dpyh = N, N′-bis(3-pyridinecarboxamide)-1, 6-hexane]. Structural analysis indicates that the title complexes present different structures although using the same S-/thiadiazole-containing dicarboxylate. Complex1 is a 3D framework constructed from 2D (6 3 ) Co-BSTDA layers and 1D Co-bbbm chains. When the flexible bbbm in1 was replaced by a semi-rigid bdmbmb ligand, a 2D parallelogram (4, 4) network2 derived from 1D Co-BSTDA and Co-bdmbmb single chains has been obtained. Complex3, with Ni II ion as substitute of Co II ion in1, exhibited a 2D (4, 4) network constructed form 1D Ni-BSTDA and Ni-bbbm single chains. When the bbbm in3 was replaced by a longer and more flexible N-donor ligand 3-dpyh in4, a 2D wave-like (4, 4) layer constructed from [Ni-BSTDA]2 and [Ni-(3-dpyh)]2 double chains with bimetallic nodes was generated. While the Co II ion in1 was substituted by Cd II ion in5, a 3D framework crossed by 2D (6 3 ) wave-like Cd-bbbm layers and 1D zigzag Cd-BSTDA chains was obtained. Structural diversity in complexes1 –5 demonstrates that the coordination characters of metal ions, the spacer length and flexibility of N-donor ligands have great influence on the final structures of the title complexes. In addition, fluorescence properties of complexes1 –5 are also reported in this paper.