First insights into the protonation of dissymetrically disubstituted di-iron azadithiolate models of the [FeFe]H2 ases active site

被引：48

作者：

Ezzaher, Salah ^{[1
]}

Orain, Pierre-Yves ^{[1
]}

Capon, Jean-Francois ^{[1
]}

Gloaguen, Frederic ^{[1
]}

Petillon, Francois Y. ^{[1
]}

Roisnel, Thierry ^{[2
]}

Schollhammer, Philippe ^{[1
]}

Talarmin, Jean ^{[1
]}

机构：

[1] Univ Bretagne Occidentale, CNRS, UMR 6521, F-29238 Brest 3, France

[2] Univ Rennes 1, CNRS, Ctr Diffractometrie X, UMR 6226, F-35042 Rennes, France

来源：

CHEMICAL COMMUNICATIONS | 2008年 / 22期

关键词：

D O I：

10.1039/b801373j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dissymetrically disubstituted di-iron azadithiolate complexes [Fe-2(CO)(4)(kappa(2)-LL){mu-SCH2N(Pr-i)CH2S}] (LL = dppe, phen) protonate exclusively at the N atom of the bridge, like the hexacarbonyl precursor but in contrast to symmetrically disubstituted analogues; substitution of dppe for two CO groups noticeably increases the kinetics of the electrocatalytic proton reduction process.

引用

页码：2547 / 2549

页数：3

共 39 条

[1] Models of the iron-only hydrogenase:: Reactions of [Fe2(CO)6(μ-pdt)] with small bite-angle diphosphines yielding bridge and chelate diphosphine complexes [Fe2(CO)4(diphosphine)(μ-pdt)] [J].

Adam, Fatima I. ;

Hogarth, Graeme ;

Richards, Idris .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2007, 692 (18) :3957-3968

[2] Models of the iron-only hydrogenase:: Structural studies of chelating diphosphine complexes [Fe2(CO)4(μ-pdt)(κ2P,P′-diphosphine)] [J].

Adam, Fatima I. ;

Hogarth, Graeme ;

Richards, Idris ;

Sanchez, Benjamin E. .

DALTON TRANSACTIONS, 2007, (24) :2495-2498

[3] SIR97:: a new tool for crystal structure determination and refinement [J].

Altomare, A ;

Burla, MC ;

Camalli, M ;

Cascarano, GL ;

Giacovazzo, C ;

Guagliardi, A ;

Moliterni, AGG ;

Polidori, G ;

Spagna, R .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1999, 32 :115-119

[4] Some general principles for designing electrocatalysts with hydrogenase activity [J].

Artero, V ;

Fontecave, M .

COORDINATION CHEMISTRY REVIEWS, 2005, 249 (15-16) :1518-1535

[5]

Bard A.J., 1980, ELECTROCHEMICAL METH, P429

[6]

BEST SP, 2005, COORDIN CHEM REV, V1536, P249

[7] DFT investigations of models related to the active site of [NiFe] and [Fe] hydrogenases [J].

Bruschi, M ;

Zampella, G ;

Fantucci, P ;

De Gioia, L .

COORDINATION CHEMISTRY REVIEWS, 2005, 249 (15-16) :1620-1640

[8] Electrochemical insights into the mechanisms of proton reduction by [Fe2(CO)6{μ-SCH2N(R)CH2S}] complexes related to the [2Fe]H subsite of [FeFe]hydrogenase [J].

Capon, Jean-Francois ;

Ezzaher, Salah ;

Gloaguen, Frederic ;

Petillon, Francois Y. ;

Schollhammer, Philippe ;

Talarmin, Jean .

CHEMISTRY-A EUROPEAN JOURNAL, 2008, 14 (06) :1954-1964

[9] Catalysis of the electrochemical H2 evolution by di-iron sub-site models [J].

Capon, JF ;

Gloaguen, F ;

Schollhammer, P ;

Talarmin, J .

COORDINATION CHEMISTRY REVIEWS, 2005, 249 (15-16) :1664-1676

[10] The organometallic active site of [Fe]hydrogenase: Models and entatic states [J].

Darensbourg, MY ;

Lyon, EJ ;

Zhao, X ;

Georgakaki, IP .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (07) :3683-3688

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