Abstract
The central copper(II) atom of the title salt, {[Cu(CF3SO3)(CH3CN)2(C12H12N2O2)](CF3SO3)} n or [[Cu(CH3CN)2(diOMe-bpy)(CF3SO3)](CF3SO3)] n where diOMe-bpy is 4,4'-dimeth-oxy-2,2'-bi-pyridine, C12H12N2O2, is sixfold coordin-ated by the N atoms of the chelating bi-pyridine ligand, the N atoms of two aceto-nitrile mol-ecules, and two tri-fluoro-methane-sulfonate O atoms in a tetra-gonally distorted octa-hedral shape. The formation of polymeric chains [Cu(CH3CN)2(diOMe-bpy)(CF3SO3)]+ n leaves voids for the non-coordinating tri-fluoro-methane-sulfonate anions that inter-act with the complex through weak hydrogen bonds. The presence of weakly coordinating ligands like aceto-nitrile and tri-fluoro-methane-sulfonate makes the title compound a convenient starting material for the synthesis of novel metal-organic frameworks.
Highlights
4,40-Dimethoxy-2,20-bipyridines are continuously being investigated for their photoluminescence features (Ravaro et al, 2018), antimicrobial activity (Drzezdzon et al, 2019), good affinity in DNA binding (Anjomshoa et al, 2016), and antitumor activity against human cancer cells (Qin et al, 2019)
The central copper(II) atom exhibits a tetragonally distorted octahedral coordination environment defined by the N atoms of the chelating 4,40dimethoxy-2,20-bipyridine ligand and two neutral acetonitrile molecules in the equatorial plane and by two O atoms of symmetry-related trifluoromethanesulfonate anions in axial positions
The Cu—N bond lengths with the bipyridine ligand are shorter than the Cu—N bond lengths with the coordinating acetonitrile molecules, their values are comparable with the reported values of other copper(II) complexes with the same chelating ligand (Fettouhi, 2017)
Summary
4,40-Dimethoxy-2,20-bipyridines are continuously being investigated for their photoluminescence features (Ravaro et al, 2018), antimicrobial activity (Drzezdzon et al, 2019), good affinity in DNA binding (Anjomshoa et al, 2016), and antitumor activity against human cancer cells (Qin et al, 2019). The central copper(II) atom exhibits a tetragonally distorted octahedral coordination environment defined by the N atoms of the chelating 4,40dimethoxy-2,20-bipyridine ligand and two neutral acetonitrile molecules in the equatorial plane and by two O atoms of symmetry-related trifluoromethanesulfonate anions in axial positions. This arrangement leaves voids in which the second type of tri-
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