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Cysteine and Methionine Derivatives of Aminophenol Ligands: Synthesis, Iron Complexation, Magnetic, Electronic and Redox Investigation
Author(s) -
Sheykhi Hamid,
Safaei Elham
Publication year - 2014
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201300374
Subject(s) - chemistry , cysteine , redox , ligand (biochemistry) , monomer , cyclic voltammetry , magnetic susceptibility , paramagnetism , metal , proton nmr , methionine , crystallography , stereochemistry , electrochemistry , inorganic chemistry , organic chemistry , amino acid , polymer , biochemistry , physics , receptor , electrode , quantum mechanics , enzyme
Two new Cysteine and Methionine derivatives of aminophenol ligands (HL Cys and HL Met ) were synthesized by a convenient procedure. The ligands were characterized by 1 H NMR, 13 C NMR and IR spectroscopies, ESI‐MS, elemental analysis and optical activity measurements. Iron(III) complexes (FeL Cys and FeL Met ) of these ligands were synthesized and characterized by spectroscopic, magnetic susceptibility studies and cyclic voltammetry techniques. The molecular structure of FeL Cys and FeL Met determined by ESI‐MS consist of two ligands coordinated to Fe(III) centers. The magnetic susceptibility measurement indicates the monomeric complexes with paramagnetic properties. Both complexes undergo metal‐centred reduction, and ligand‐centred oxidation.