ABSTRACT
Two novel binuclear Mn(II) metal-organic coordination complexes [Mn2(TBZ)2(CDC)(C2O4)]n (1), {[Mn2(TBZ)2(BDC)(0.5)(BTC)(H2O)2]·ET}n (2), (where TBZ = thiabendazole, H2CDC = trans-1,4-cyclohexanedicarboxylic acid, H2C2O4 = oxalic acid, H3BTC = 1,3,5-benzenetricarboxylic acid, ET = ethanol, H2BDC = 1,4-benzenedicarboxylate) have been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, electrochemical analysis and single crystal X-ray diffraction. The X-ray structure analysis reveals that 1 is s two-dimensional layer and 2 is s one-dimensional chain. In complex 1, it reveals 2-D layers composed of multi-(bidentate) bridging ligands (CDC and C2O4), and in 2, the coordinated BTC ligands adopt a monodentate mode and with BDC ligands adopt alternately chelating Mn1 and Mn2 bridges into 1-D chains. The 3-D structures of the two complexes are stabilized by π-π stacking interactions and hydrogen bonds.
Subject(s)
Carboxylic Acids/chemistry , Manganese/chemistry , Polymers/chemistry , Thiabendazole/chemistry , Crystallography, X-Ray , Electrochemistry , Hydrogen Bonding , Metals , Models, Molecular , Molecular Structure , Polymers/chemical synthesis , ThermogravimetryABSTRACT
In the title compound, [NiCl(C(10)H(7)N(3)S)(2)(H(2)O)]NO(3), the Ni(II) ion is coordinated by four N atoms from two chelating 2-(1,3-thia-zol-4-yl)-1H-benzimidazole ligands, one Cl atom and one water mol-ecule in a distorted octa-hedral geometry. In the crystal, O-Hâ¯O, N-Hâ¯O and N-Hâ¯Cl hydrogen bonds link the complex cations and nitrate anions into a three-dimensional network. π-π inter-actions between the thia-zole and imidazole rings and between the thia-zole and benzene rings are observed [centroid-centroid distances = 3.592â (3) and 3.735â (3)â Å].
