Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Journal of Coordination Chemistry
Year: 2008  |  Volume: 61  |  Issue: 15  |  Page No.: 2449 - 2456

Synthesis, crystal structure, spectroscopic and electrochemical properties of nickel(II) dipicolinate complex with ethylisonicotinate

Ibrahim Ucar, Iclal Bulut, Ahmet Bulut and Orhan Buyukgungor    

Abstract: The diaqua(ethylisonicotinate)(pyridine-2,6-dicarboxylato)nickel(II) monohydrate complex was synthesized and characterized by spectroscopic (IR, UV/vis), X-ray diffraction and electrochemical methods. The Ni(II) ion is bonded to dipicolinate (dpc) through pyridine N atom and one O atom of each carboxylate group, two aqua ligands and N pyridine atom of ethylisonicotinate (ein), form the distorted octahedral geometry. The molecules are connected via O-H ··· O hydrogen bonds, forming  GCOO_A_292873_O_XML_IMAGES\GCOO_A_292873_O_ILM0001.gif motifs in three dimensional networks. IR and UV-Vis spectroscopies agree with the observed crystal structure. The voltammetric behaviour of the complex was investigated in aqueous solution by square-wave and cyclic voltammetry using a NH3/NH4Cl buffer. The square-wave voltammogram of the complex yields three reduction peaks at -0.88, -1.20 and -1.28 V. The irreversible reduction as a shoulder at -1.20 V is due to Ni-dpc-ein complex. The peak at -0.88 V corresponds to irreversible electrode process of Ni(II)-ein complex while the peak at -1.28 V is attributed to the reduction of the coordinated dpc ligands.

View Fulltext    |   Related Articles   |   Back
  Related Articles

No Article Found
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility