Structural features of a new [Fe(nicotinamide)2(H2O)4].[Fe(H2O)6].(SO4)2.2H2O complex by Semiha Cakir, Ender Bicer, Katsuyuki Aoki, and Emine Coskun

Crystal Research and Technology

Cryst. Res. Technol. 41, 314 (2006) - Abstract -

Structural features of a new [Fe(nicotinamide)₂(H₂O)₄]^.[Fe(H₂O)₆]^.(SO₄)₂^.2H₂O complex

Semiha Cakir, Ender Bicer*, Katsuyuki Aoki**, and Emine Coskun*

Department of Chemistry, Faculty of Arts and Sciences, Gazi University, 06500 Teknikokullar–Ankara, Turkey
*Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayýs University, 55139 Kurupelit–Samsun, Turkey
**Department of Materials Science, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441, Japan

Keywords	Fe(II) complex, nicotinamide, infrared spectra, electronic spectra, voltammetry, crystal structure
PACS	61.66.Hq
DOI	10.1002/crat.200510580

A new nicotinamide complex of Fe(II) cation was prepared by reaction between ferrous sulfate and nicotinamide in aqueous solution. The complex was characterized on the basis of elemental analysis, FT IR and UV-VIS spectroscopy, electrochemistry (cyclic voltammetry) and X-ray crystallography. The complex consists of the molecular composition of [Fe(nicotinamide)₂(H₂O)₄]^.[Fe(H₂O)₆]^.(SO₄)₂^.2H₂O. The complex crystallizes in the monoclinic space group P2₁/c [a = 12.862(3), b = 7.110(3), c = 16.382(3) Å; #beat = 95.79(2)°]. It has been proven that nicotinamide is coordinated to Fe(II) through the nitrogen atom of its heterocyclic ring.

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