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Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   FEBRUARY 2014 , Volume 11 , Number 1; Page(s) 101 To 109.
 
Paper: 

SYNTHESIS, CHARACTERIZATION, CRYSTAL STRUCTURE AND ANTIBACTERIAL STUDIES OF SOME NEW HEPTADENTATE MANGANESE (II), CADMIUM (II) AND ZINC (II) MACROCYCLIC SCHIFF BASE COMPLEXES WITH TWO 2-PYRIDYLMETHYL PENDANT ARMS

 
 
Author(s):  KEYPOUR HASSAN*, ZEBARJADIAN MOHAMMAD HASSAN, REZAEIVALA MAJID*, CHEHREGHANI ABDOLKARIM, AMIRI RUDBARI HADI, BRUNO GIUSEPPE
 
* DEPARTMENT OF CHEMICAL ENGINEERING, HAMEDAN UNIVERSITY OF TECHNOLOGY, 65155, HAMEDAN, IRAN
 
Abstract: 

Two new branched hexadentate amines, 4,8-bis(2-pyridylmethyl)-4,8-diazaundecane-1,11-diamine (1) and 4,9-bis(2-pyridylmethyl)-4,9-diazadodecane-1,12-diamine (2), have been synthesized. Condensation with 2,6-diacetylpyridine in methanol in the presence of manganese (II), zinc (II) and cadmium(II) ions leads to produce some new Schiff base macrocyclic complexes with two 2-pyridylmethyl pendant arms. The X-ray crystal structure of the resulting manganese (II) complex, [MnL1] (ClO4)2 H2O (3), is reported here. It has been shown that the manganese atom is bonded to five nitrogens of a macrocyclic ring and two nitrogens of the pendant arms. The arrangement is slightly distorted to pentagonal bipyramidal whereas the nitrogens of 2-pyridylmethyl groups occupy apical positions. The synthesized complexes were screened for their antibacterial activities against four bacterial strains and the complexes showed antibacterial effects.

 
Keyword(s): MACROCYCLIC SCHIFF BASE COMPLEXES, PENDANT ARMS, X-RAY CRYSTAL STRUCTURE, BRANCHED AMINE, ANTIBACTERIAL EFFECTS
 
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