Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   DECEMBER 2010 , Volume 7 , Number 4; Page(s) 825 To 833.
 
Paper: 

SYNTHESIS, CRYSTAL STRUCTURE, ELECTROCHEMICAL AND FLUORESCENCE STUDIES OF A NOVEL ZN(II)-FLUOROPHORE, 1,10-PHENANTHROLINE-5,6-DIONE (PHEN-DIONE)

 
 
Author(s):  REZVANI A.R.*, SARAVANI H., HADADZADEH H.
 
* DEPARTMENT OF CHEMISTRY, UNIVERSITY OF SISTAN AND BALUCHESTAN, ZAHEDAN, IRAN
 
Abstract: 

The crystal structure of 1, 10-phenanthroline-5, 6-dione ligand with Zn (II), tris (1, 10-phenanthroline-5, 6-dione) zinc (II) hexafluorophosphate, [Zn (phen-dione) 3] (PF6) 2, is reported. The complex was characterized by elemental analysis, IR, 1H NMR, electronic absorption spectroscopies, cyclic voltammetry and X-ray crystallography. Yellow crystals of [Zn (phen-dione) 3] (PF6) 2 were formed by ether diffusion into an acetonitrile solution of the complex. The title complex crystallized in monoclinic crystal system (Z=2) with space groups of P21, a=12.0299 (15) Å, b=14.5306 (19) Å, c=13.1879 (17) Å, b=94.058 (2)° and V= 2299.5 (5) Å, b. The structure was refined by using 10048 independent reflections, with I > 2s (I) to an R factor of 0.0490. Singlecrystal structure showed that the coordination geometry around the Zn (II) was a distorted octahedron. The complex showed an intense fluorescence band at visible region (690 nm) in CH3CN with an excitation wavelength of 310 nm at 25.0±0.1oC.
Cyclic voltammogram of the title complex showed two quasi-reversible reduction couples at negative potential, which were assigned to the consecutive reduction of phen-dione ligand to phen-semiquinonate and phen-diolate respectively by analogy to other phen-dione complexes at scan rate 200 mV s-1.

 
Keyword(s): ZN(II) COMPLEX, 1,10-PHENANTHROLINE-5, 6-DIONE, ZN(II)-FLUOROPHORE, PHEN-SEMIQUINONATE, FLUORESCENCE
 
References: 
  • ندارد
 
  pdf-File tarjomyar Yearly Visit 97
 
Latest on Blog
Enter SID Blog