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Paper Information

Journal:   IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)   SPRING 2009 , Volume 28 , Number 1; Page(s) 65 To 70.
 
Paper: 

SYNTHESIS, ELECTROCHEMICAL PROPERTIES AND SPECTROSCOPIC STUDIES OF MONO AND DINUCLEAR ZN (II)POLYPYRIDYL COMPLEXES WITH PHENYLCYANAMIDE LIGANDS

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

Several novel mononuclear Zn (II) complexes, [Zn (bpy) L2], where bpy=2,2’-bipyridine and L=monoanions of phenylcyanamide (pcyd), 4-methylphenylcyanamide (4-Mepcyd), 3,5-dimethylphenylcyanamide (3,5-Me2pcyd), 4-methoxyphenylcyanamide (4-MeOpcyd), 3,5-dimeth-oxyphenylcyanamide (3,5-MeO2pcyd), 3-chlorophenylcyanamide (3-Clpcyd), 2,3-dichlorophenyl-cyanamide (2,3-Cl2pcyd), 4-bromophenylcyanamide (4-Brpcyd), 1-naphthylcyanamide (1-ncyd), azophenylcyanamide (apcyd) and a dinuclear Zn (II) complex, [{Zn (terpy)}2 (m-adicyd)] (PF6)2, where terpy = 2,2´:6´,2´´-terpyridine and adicyd = azodi (phenylcyanamide) dianion  have been synthesized and characterized by elemental analysis, UV-vis, IR, 1H-NMR spectroscopic techniques and cyclicvoltammetry. The presence of only one sharp and intense absorption band for n (N=C=N) around 2100-2180 cm-1 for all the monomer complexes provide evidence that both cyanamide legend are equivalent in the solid state and coordinated end-on by nitride nitrogen to Zn (II). This is also indicated by 1H-NMR spectra of the complexes. UV-vis spectra show one MLCT band that are associated with Zn (II)-pyridyl chromophores (t2g6 ®P*). Blue shift of this band with increasing the polarity of solvent from CH3OH to DMSO is the reason for this assignment. The Zn (II) ion is redox innocent therefore; two irreversible oxidation peaks at positive potential and one reduction couple at the negative potential are assigned to sequential oxidation of two phenylcyanamide ligands and reduction of bipyridine, respectively.

 
Keyword(s): PHENYLCYANAMIDE, ZINC (II) COMPLEX, POLYPYRIDYL, SPECTROSCOPY, CYCLICVOLTAMMETRY
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

REZVANI, A., & HADADZADEH, H. (2009). SYNTHESIS, ELECTROCHEMICAL PROPERTIES AND SPECTROSCOPIC STUDIES OF MONO AND DINUCLEAR ZN (II)POLYPYRIDYL COMPLEXES WITH PHENYLCYANAMIDE LIGANDS. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 28(1), 65-70. https://www.sid.ir/en/journal/ViewPaper.aspx?id=142651



Vancouver: Copy

REZVANI A.R., HADADZADEH H.. SYNTHESIS, ELECTROCHEMICAL PROPERTIES AND SPECTROSCOPIC STUDIES OF MONO AND DINUCLEAR ZN (II)POLYPYRIDYL COMPLEXES WITH PHENYLCYANAMIDE LIGANDS. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE). 2009 [cited 2021October20];28(1):65-70. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=142651



IEEE: Copy

REZVANI, A., HADADZADEH, H., 2009. SYNTHESIS, ELECTROCHEMICAL PROPERTIES AND SPECTROSCOPIC STUDIES OF MONO AND DINUCLEAR ZN (II)POLYPYRIDYL COMPLEXES WITH PHENYLCYANAMIDE LIGANDS. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), [online] 28(1), pp.65-70. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=142651.



 
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