Covalently grafted, silica gel supported mixed amino acid iron complexes - Syntheses, structural characterization and catalytic testing

被引：7

作者：

Csendes, Z. ^{[2
]}

Foeldi, N. ^{[2
]}

Kiss, J. T. ^{[2
]}

Sipos, P. ^{[1
]}

Palinko, I. ^{[2
]}

机构：

[1] Univ Szeged, Dept Inorgan & Analyt Chem, H-6720 Szeged, Hungary

[2] Univ Szeged, Dept Organ Chem, H-6720 Szeged, Hungary

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2011年 / 993卷 / 1-3期

关键词：

Fe(III)-mixed amino acid complexes; Covalent anchoring; Chloropropylated silica gel; FT-IR spectroscopy; Superoxide dismutase (SOD) activity; SUPEROXIDE-DISMUTASE; MONTMORILLONITE; OXIDATION; CYSTEINE;

D O I：

10.1016/j.molstruc.2010.10.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work the syntheses of covalently grafted C-protected Fe(III)-amino acid (methylesters of L-histidine, L-cysteine and L-cystine) mixed-ligand complexes with two different amino acid esters are described using chloropropylated silica gel as the support. Conditions of the syntheses were systematically altered and the structural features of the substances obtained were studied by infrared spectroscopy. It was found that in many cases the structures of the anchored complexes and the coordinating groups substantially varied upon changing the conditions of the syntheses. All the covalently anchored materials displayed superoxide dismutase (SOD) activity and some proved to be exceptionally efficient in the biochemical test reaction. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：203 / 207

页数：5

共 17 条

[1] Kinetics of Oxidation of L-Cysteine by trans- and cis-CoIII and FeIII Complexes based on α- and γ-Diimine Schiff Base Ligands [J].