Synthesis,Characterization, and an ab initio Study of a Manganese(II) Macrocyclic Schiff-Base Complex with Two 2-Aminoethyl Pendant Arms |
| |
| Authors: | Keypour Hassan Khanmohammadi Hamid Wainwright Kevin P Jameh-Bozorgi Saeed |
| |
| Institution: | (1) Department of Chemistry, Bu-Ali Sina University, Hamadan, Iran;(2) School of Chemistry Physics and Earth Sciences, The Flinders University of SA, GPO Box 2100, Adelaide, SA, 5001, Australia;(3) Department of Chemistry, Faculty of Science, Arak branch, Islamic Azad University, Arak, Iran |
| |
| Abstract: | The cyclocondensation of 2,6-diformylpyridine with N,N,N ,N-tetrakis(2-aminoethyl)ethane-1,2-diamine (pentene) in the presence of MnII forms the 1 + 1] pendant arm Schiff-base macrocyclic complex, MnL3]2+. The ligand is a 15-membered pentaaza macrocycle having two 2-aminoethyl pendant arms {L3= 6,9-bis(aminoethyl)-3,6,9,12,18-pentaazabicyclo12.3.1]octadeca-1(18),2,12,14,16-pentene}. The complex, investigated by analytical, spectroscopic and magnetic techniques, supports the formation of a highly symmetrical pentagonal bipyramid complex with the MnII ion located within a pentaaza macrocycle and two pendant amines coordinating on opposite sides of a plane defined by the macrocycle and the metal ion. The structure of the complex was also verified by ab initio HF-MO calculations using a standard 3-21G basis set. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
