TY - JOUR
T1 - Solid state reactions of hemin with basic substances
T2 - Formation of bis and mixed complexes
AU - Paneque, Armando
AU - Fernández–Bertrán, José
AU - Reguera, Edilso
AU - Yee-Madeira, H.
PY - 2003/12
Y1 - 2003/12
N2 - The solid state reactions of hemin with KCN, Na 2 S·xH 2 O, arginine, imidazole, 1-methylimidazole, 2-methylimidazole, benzimidazole, and mixtures of these basic reagents were monitored using IR, Mössbauer, and XRD techniques. All these basic substances react at the peripheral propionic acid group of hemin-forming salts. Binary mixtures of KCN, arginine, imidazole, 1-methylimidazole, 2-methylimidazole, and benzimidazole were found to form complexes with mixed ligands at the iron site of hemin. According to the structural information obtained for these mixed complexes, mechanisms for their formation are proposed. The solid state synthesis and the properties of the obtained products reveal the specifities of the involved ligands.
AB - The solid state reactions of hemin with KCN, Na 2 S·xH 2 O, arginine, imidazole, 1-methylimidazole, 2-methylimidazole, benzimidazole, and mixtures of these basic reagents were monitored using IR, Mössbauer, and XRD techniques. All these basic substances react at the peripheral propionic acid group of hemin-forming salts. Binary mixtures of KCN, arginine, imidazole, 1-methylimidazole, 2-methylimidazole, and benzimidazole were found to form complexes with mixed ligands at the iron site of hemin. According to the structural information obtained for these mixed complexes, mechanisms for their formation are proposed. The solid state synthesis and the properties of the obtained products reveal the specifities of the involved ligands.
KW - Hemin
KW - Hemin complexes
KW - Infrared
KW - Mechanochemistry
KW - Mössbauer
UR - http://www.scopus.com/inward/record.url?scp=3442898024&partnerID=8YFLogxK
U2 - 10.1023/B:STUC.0000007566.08376.02
DO - 10.1023/B:STUC.0000007566.08376.02
M3 - Artículo
SN - 1040-0400
VL - 14
SP - 551
EP - 558
JO - Structural Chemistry
JF - Structural Chemistry
IS - 6
ER -