Spectroscopic and structural studies of the 2D Mn(II) coordination polymer from a bridging Noxa, Npy bidentate ligand; tetra-n-butylammonium[5-(3-pyridyl)-1,3,4-oxadiazole-2-thiolate] |
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| Authors: | M. Singh R.J. Butcher N.K. Singh |
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| Affiliation: | 1. Department of Chemistry, Banaras Hindu University, Varanasi 221005, India;2. Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA |
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| Abstract: | A coordination polymer {[Mn(3-pyt)2(H2O)2][N(n-Bu)4]+[3-pyt]−}n (3) has been synthesized from the reaction of tetra-n-butylammonium[5-(3-pyridyl)-1,3,4-oxadiazole-2-thiolate] {[N(n-Bu)4]+[3-pyt]−} and Mn(OAc)2 · 4H2O. The ligand and the Mn(II) complex 3 have been characterized by elemental analyses, IR, 1H and 13C NMR spectroscopy, in addition 3 has also been studied crystallographically. The single crystal X-ray structure of the 3 shows that the ligand is bonded to Mn(II) via its pyridyl and oxadiazole nitrogen atoms. This bonding pattern connects the Mn(II) centres to afford an uniform two dimensional coordination frame work where the [Mn(3-pyt)2(H2O)2]n molecules are stacked in a parallel layers. The overall arrangement of molecules in crystal lattice results in open channels in which the enclosed tetra-n-butylammonium cations are stabilized by anionic oxadiazole molecules through N+···S− ionic interactions. |
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| Keywords: | Mn(II) complex Coordination polymer Bridging bidentate 1,3,4-oxadiazole ligand X-ray crystallography |
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