| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1232277 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2012 | 7 Pages |
Polymeric copper(II) complex, [Cu(Hacm)2(na)2(H2O)2] [H2acm; 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 Cu2+ 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.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► One of very few EPR studies on acetazolamide. ► One of very few structural studies emphasizing the role of acetazolamide in supramolecular structure formation. ► Of importance in understanding the tautomerism in acetazolamide.
