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Hamid Khanmohammadi

Hamid Khanmohammadi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-5600-4738
Education: PhD.
ScopusId: 22734138900
Faculty: Science
Address: Arak University
Phone:

Research

Title
Synthesis, crystal structure and spectroscopic properties of some cadmium(II) complexes with three polyamine and corresponding macroacyclic Schiff base ligands
Type
JournalPaper
Keywords
Macrocycle, Schiff base, Crystal Structure
Year
2008
Journal Journal of Organometallic Chemistry
DOI
Researchers Hassan Keypour ، Reza Azadbakht ، Sadegh Salehzadeh ، Hamid Khanmohammadi ، Hamid Reza Khavasi ، Harry Adams

Abstract

Three Cd(II) macroacyclic Schiff base complexes [CdL4(NO3 )2](4), [CdL5(NO3)2](5), [CdL](6) were prepared by template condensation of 2-pyridinecarboxaldehyde with N1-(2-nitrobenzyl)-N1-(2-aminoethyl)ethane-1,2-diamine (L1), N1-(2-nitrobenzyl)-N1-(2-aminoethyl)propane-1,3-diamine (L) or N1-(2nitrobenzyl)-N1-(3-aminopropyl)propane-1,3-diamine (L3), in the presence of cadmium metal ion, respectively. Three Cd(II) complexes with L12,Land L3 were also synthesized. All complexes have been studied with IR, 1H NMR, 13C NMR, DEPT, COSY, HMQC and microanalysis. Two of these complexes, [CdL4(NO3)2](4) and [CdL1](1) have been characterized through X-ray crystallography. In complex 4, the Cd is in a six-coordinate environment comprised of the ligand N(NO3)2-donor set and two oxygen atoms of two nitrate groups. In the polyamine complexes (1, 2 and 3) Cd and ligand are in a ratio of 1:1. Supporting ab initio HF–MO calculations have been undertaken using the standard 3-21G*and 6-31G*basis sets.