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.
Highlights
During the last decades, chemists have devoted themselves to the development of new crystalline materials with a variety of properties, functions, and potential applications such as gas sorption, luminescence, molecular magnetism, nonlinear optics, catalysis, and ion-exchange [1–5].To the best of our knowledge, selecting appropriate ligands is the most effective strategy for obtaining coordination polymers
Mn(II) metal-organic coordination complexes [Mn2(TBZ)2(CDC)(C2O4)]n (1), and {[Mn2(TBZ)[2] (BDC)0.5(BTC)(H2O)2]·ET}n (2), and we report the crystal structures, elemental analyses, electrochemical analysis, IR spectroscopy and thermal properties of these two novel Mn(II) complexes with TBZ ligands [14,15]
The single-crystal X-ray diffraction analysis reveals that the complexes 1 and 2 crystallize in the triclinic system with space group P-1 and P-1, respectively (Table 1)
Summary
Chemists have devoted themselves to the development of new crystalline materials with a variety of properties, functions, and potential applications such as gas sorption, luminescence, molecular magnetism, nonlinear optics, catalysis, and ion-exchange [1–5]. To the best of our knowledge, selecting appropriate ligands is the most effective strategy for obtaining coordination polymers. The auxiliary ligands containing N-donors, such as TBZ, were introduced into reaction systems so as to inhibit the expansion of polymeric frameworks to obtain the desired low dimensional coordination polymers. The use of mixed ligands has been demonstrated to be a very effective approach for constructing diverse coordination frameworks [10–13]. The hybrid coordination polymers constructed by TBZ and aryl-acid combinations are rarely reported, these two ligands are familiar to us. (BDC)0.5(BTC)(H2O)2]·ET}n (2), and we report the crystal structures, elemental analyses, electrochemical analysis, IR spectroscopy and thermal properties of these two novel Mn(II) complexes with TBZ ligands [14,15]
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