Zeyrek, C. TuğrulElmalı, AyhanElerman, Y.2018-12-032018-12-032005-05Zeyrek, C. T., Elmalı, A. ve Elerman, Y. (2005). Iron(III) induced imidazolidine ring hydrolysis of binucleating schiff base ligand: synthesis, crystal structures, spectroscopic properties and conformational study of a new μ-bis(tetradentate) schiff base and its mononuclear iron(III) complex. Zeitschrift für Naturforschung B, 60(5), 520-526.ISSN (Online) 1865-7117ISSN (Print) 0932-0776http://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/998The μ-bis(tetradentate) ligand, [C27H26Cl3N4O4], H3L′, 1,3-bis[N-(5-chloro-2-hydroxybenzylidene)- 2-aminoethyl]-2-(5-chloro-2-hydroxyphenyl)imidazolidine and its mononuclear iron(III) complex, [Fe(L)](ClO4), L = N, N′-bis(5-chloro-2-hydroxybenzylidene)-triethylenetetramine have been synthesized and their crystal structures determined. Minimum energy conformations of the ligand were calculated (MOPAC, AM1) as a function of two torsion angles and the results compared with optimized crystal structure. The ligand (H3L′) reacts with Fe(ClO4)2 · 6H2O in aqueous methanol to form the mononuclear [Fe(L)](ClO4) complex with the imidazolidine ring cleaved by hydrolysis. The complex has an N4O2 donor atom set forming a distorted octahedral coordination geometry around the metal atom as established from a crystal structure determination. The terminal oxygen donor atoms occupy cis positions, and the remaining four nitrogen atoms (two cis amine and two trans imine) complete the coordination sphere.enginfo:eu-repo/semantics/openAccessSchiff baseSchiff bazıIron complexDemir kompleksiImidazolidine ringİmidazolidin halkasıCrystal structureKristal yapıConformational analysesKonformasyon analizleriarticle605205265