Effect of O and S heteroatom containing heterocyclic dicarboxylates in the structural diversity of cadmium(II) coordination polymers with flexible 1-substituted (1, 2, 4-triazole) ligand. (14th December 2015)

• Record Type: Journal Article
• Authors: Erer, Hakan
• Is Part Of: Polyhedron. Volume 102(2015)
• Page Start: 201
• Page End: 206
• Publication Date: 2015-12-14
• Subjects: 2D → 3D polycatenated -- Furan-2, 5-dicarboxylate complexes -- Thiophene-2, 5-dicarboxylate complexes -- 1, 4-bis[(1H-1, 2, 4-triazol-1-yl)methyl]benzene -- 3D coordination polymer; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2015.09.041
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: In this study, 2D → 3D polycatenated and 3D coordination polymers have been synthesized under hydrothermal conditions with different heteroatom containing dicarboylic acids. Different anionic linkers play a crucial role in the dimensionality and topology of synthesized CPs. Complexes display blue luminescence emissions. Abstract: The self-assembly of cadmium(II) ions with bis(1, 2, 4-triazole) ligand afford two new coordination polymers based on different heterocyclic dicarboxylates, namely, [Cd(μ-fdc)(μ-pbtx)(H2 O)] n (1 ) and [Cd2 (μ3 -tdc)2 (μ-pbtx)2 (H2 O)2 ] n (2 ) where H2 fdc = furan-2, 5-dicarboxylic acid, H2 tdc = thiophene-2, 5-dicarboxylic acid, pbtx = 1, 4-bis[(1H-1, 2, 4-triazol-1-yl)methyl]benzene. The coordination polymers have been prepared by the hydrothermal method and characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. The anionic linkers play important roles in modulating the formation of the coordination polymers. Single crystal X-ray diffraction study reveals that complex1 possesses a uninodal 4-connected two-dimensional (2D) → 3D polycatenated framework based on inclined 2D 4 4 -sql grids. When the O-containing fdc is replaced by S-containing tdc ligand, a uninodal 8-connected three-dimensional (3D) framework of2 with rare cco-8-Pbcm (3 6 .4 14 .5 7 .6) topology is obtained under the same reaction conditions. The effect of O and S atoms in heterocyclic dicarboxylates on the formation of framework has been discussed. Moreover, photoluminescence properties and thermal stabilities of the compounds were investigated.