title: Structural, spectroscopic and voltammetric studies of bis(acetazolamido)bis(aquo)bis(nicotinamide)copper(II).
abstract: Polymeric copper(II) complex, [Cu(Hacm)(2)(na)(2)(H(2)O)(2)] [H(2)acm; acetazolamide, na; nicotinamide] was synthesized and characterized by spectroscopic (IR; infrared spectroscopy, EPR; electron paramagnetic resonance), structural (XRD) and voltammetric structural (CV) methods. The copper(II) compound crystallizes in the triclinic space group P1¯, Z=1, with the unit-cell dimensions: a=7.672 (5)Å, b=8.681 (5)Å, c=11.938 (5)Å, α=90.807 (7)°, β=98.616 (5)° and γ=110.647 (5)°. The Cu(II) ion has a distorted octahedral coordination geometry. The crystal packing of the complex is stabilized by intermolecular O-H…O and N-H…O hydrogen bonds. The powder EPR spectrum of copper(II) complex have indicate that the paramagnetic center is in a tetragonal symmetry with the Cu(2+) ion having a distorted octahedral geometry. The vibrational investigation has been carried out on the basis of some characteristic IR bands of acetazolamide and nicotinamide molecules.
authors: Ondokuz Mayıs University, Faculty of Arts and Sciences, Department of Physics, Samsun, Turkey. filiz.ozturk@omu.edu.tr
authors: Filiz
authors: F
authors: Oztürk
authors: Ahmet
authors: A
authors: Bulut
authors: Hümeyra
authors: H
authors: Paşaoğlu
authors: Iclal
authors: I
authors: Bulut
authors: Orhan
authors: O
authors: Büyükgüngör
mesh_terms: D000086:Acetazolamide / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D004578:Electron Spin Resonance Spectroscopy; D006860:Hydrogen Bonding; D008958:Models, Molecular; D009536:Niacinamide / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013237:Stereoisomerism
chemical_list: D009942:Organometallic Compounds; C578115:bis(acetazolamido)bis(aquo)bis(nicotinamide)copper(II); D009536:Niacinamide; D003300:Copper; D000086:Acetazolamide