Electrochemical behavior of iron(III) complexes with aminohydroxamic acids

Nigovic B.; Kujundzic N.

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Electrochemical behavior of iron(III) complexes with aminohydroxamic acids

机译：铁（III）与氨基异羟肟酸配合物的电化学行为

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The electrochemical reduction of various aminohydroxamate complexes of iron(III), such as alanine-, serine-, lysine-, histidine and glutamo-gamma-hydroxamate, has been investigated in aqueous Solution by cyclic voltammetry on hanging mercury drop electrodes to determine the mechanism involved in the electron transfer processes. In all the Studied cases the iron(Ill) complexes, with the exception of histidinehydroxamate, have been found to undergo reversible reductions followed by irreversible chemical reactions (EC mechanism). Rate constants for the irreversible dissociation of iron(II) complexes were calculated. The typical quasi-reversible pattern for the reduction of histidinehydroxamate was attributed to the different coordination mode. The observed differences in redox potentials between the investigated complexes suggest that the electronic effect of the substituent on the carbonyl group, involved in the coordination to the iron center, may modify the donor properties of the oxygen atoms of the hydroxamate moiety. The potentials determined at physiological pH Lire in the range of biological reducing agents, which makes these compound potential siderophore models. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 27]

机译：已在水溶液中通过循环伏安法在悬挂的汞滴电极上研究了铁（III）的多种氨基异羟肟酸酯络合物的电化学还原，如丙氨酸，丝氨酸，赖氨酸，组氨酸和谷氨酸-γ-异羟肟酸酯，以确定其机理参与电子转移过程。在所有研究的案例中，除组氨酸异羟肟酸酯外，已发现铁（III）配合物发生可逆还原反应，然后发生不可逆化学反应（EC机理）。计算了铁（II）配合物不可逆解离的速率常数。组氨酸异羟肟酸酯还原的典型准可逆模式归因于不同的配位模式。在所研究的配合物之间观察到的氧化还原电势差异表明，取代基对羰基的电子作用涉及与铁中心的配位，可能会改变异羟肟酸酯部分氧原子的供体性质。在生理pH值下测定的电位处于生物还原剂的范围内，这使这些化合物成为潜在的铁载体模型。（C）2002 Elsevier ScienceLtd。保留所有权利。 [参考：27]

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2002年第16期|共6页
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Nigovic B.; Kujundzic N.;
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1. Electrochemical behavior of iron(III) complexes with aminohydroxamic acids [J] . Nigovic B., Kujundzic N. Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 2002,第16期

机译：铁（III）与氨基异羟肟酸配合物的电化学行为
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3. Spectroscopic and Electrochemical Analysis of Interaction of DBCH_2 with Iron(III) complexes of N-Salicylidene-L-amino Acids in Aqueous Surfactant Micelle Medium [J] . PRADYUT SARMA, PRABIN K. BORUAH, OKHIL K. MEDHI Journal of surface science and technology . 2011,第1a2期

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4. ELECTROCHEMICAL BEHAVIOR OF IRON AND SEVERAL IRON COMPLEXES IN HYDROPHOBIC ROOM TEMPERATURE MOLTEN SALTS [C] . Masaki Yamigata, Naoki Tachikawa, Yasushi Katayama International Symposium on Molten Salts . 2006

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5. I. THE ELECTROCHEMISTRY OF NITRIC OXIDE AND A NITROUS ACID AT A MERCURY ELECTRODE IN AQUEOUS SOLUTIONS. II. ELECTROCHEMISTRY AND HYDROLYSIS KINETICS OF THE 2,2'-BIPYRIDINE COMPLEXES OF IRON(III) AND IRON(II); ELECTROCHEMICAL KINETIC PARAMETERS FOR SEVERAL IRON COMPLEXES. III. PROTON NUCLEAR MAGNETIC RESONANCE STUDIES OF URANIUM(IV)-ETHYLENE DIAMINETETRAACETIC ACID COMPLEXES IN AQUEOUS (DEUTERIUM-OXIDE) SOLUTIONS. [D] . EHMAN, DEWAYNE LEE. 1969

机译：I.水溶液中汞电极上一氧化二氮和亚硝酸的电化学二。铁（III）和铁（II）的2,2'-联吡啶络合物的电化学和水解动力学；多种铁络合物的电化学动力学参数。三，铀（IV）-水溶液（氧化氘）中铀（IV）-乙撑双氨基乙酸复合物的质子核磁共振研究
6. Electrochemical Characterization of Iron (III) Doped Zeolite-Graphite Composite Modified Glassy Carbon Electrode and Its Application for AdsASSWV Determination of Uric Acid in Human Urine [O] . Meareg Amare 1952

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7. Relaxometric study of copper 15metallacrown-5 gadolinium complexes derived from alpha-aminohydroxamic acids [O] . Parac-Vogt Tatjana, Pacco Antoine, Nockemann Peter, 2005

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8. Magnetic Properties and Moessbauer Spectra of Several Iron(III) Dicarboxylic Acid Complexes [R] . Dziobkowski, C. T., Wrobleski, J. T., Brown, D. B. 1980

机译：几种铁（III）二羧酸配合物的磁性和穆斯堡尔谱

Electrochemical behavior of iron(III) complexes with aminohydroxamic acids

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