H-bonded supramolecular assembly via proton transfer: Isolation, X-ray crystallographic characterization and SOD mimic activity of [Cu(dipic) 2 ] 2 [PA-H] 4 ·5H 2 O
The title proton transfer complex was isolated from the reaction of CuCl 2 ·2H 2 O with pyridine-2,6-dicarboxylic acid (dipic-H 2 ) in presence of 3-amino-1-propanol (PA) under reflux condition. It was thoroughly characterized by FAB-mass, FT-IR, electronic (ligand field), EPR spectroscopic and X-ra...
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222860_v1033_n_p98_Siddiqi http://hdl.handle.net/20.500.12110/paper_00222860_v1033_n_p98_Siddiqi |
| Aporte de: |
| Sumario: | The title proton transfer complex was isolated from the reaction of CuCl 2 ·2H 2 O with pyridine-2,6-dicarboxylic acid (dipic-H 2 ) in presence of 3-amino-1-propanol (PA) under reflux condition. It was thoroughly characterized by FAB-mass, FT-IR, electronic (ligand field), EPR spectroscopic and X-ray crystallographic techniques. The complex crystallizes in the space group C1c1 of the monoclinic system. The unit cell parameters are, a = 17.247(5), b = 20.058(5) Å, c = 15.320(4) Å and β = 109.235(5)°. Extensive H-bonding between the complex anion [Cu(dipic) 2 ] 2- and the surrounding cations [PA-H] + results in a 3D network, supported with additional π-π interactions of the ligand (dipic) 2- neighboring units. The SOD mimic activity of the present complex was also examined using NBT assay. © 2012 Elsevier B.V. All rights reserved. |
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