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Indexed by:期刊论文

Date of Publication:2006-03-01

Journal:INORGANICA CHIMICA ACTA

Included Journals:SCIE

Volume:359

Issue:4

Page Number:1071-1080

ISSN No.:0020-1693

Key Words:bioinorganic chemistry; catalysis; hydrogen production; iron-sulfur complex

Abstract:The preparation and characterization of two novel amino-incorporated sulfur-bridged dinuclear iron (I) complexes of the type [NR(mu-SCH(2))2]Fe(2)(CO)(6), one being amino protected [N(CH(2)CH(2)NHTs)(mu-SCH(2))(2)]Fe(2)(CO)(6) (8) and the other [(mu-SCH(2))(2)Fe(2)(-CO)(6)NCH(2)CH(2)N (mu-SCH(2))(2)]Fe(2)(CO)(6) (9) are described. These two complexes are readily prepared in a S(N)2 manner between double lithium anion and bis(chloromethyl) amine derivatives. The structures of 8 and 9 were characterized by IR, (1)H, (13)C NMR, MS and HRMS spectra and further determined by X-ray analyses. Protonation of complex 8 gave the mono N-protonated product, while for 9 the protonation occurred in both of the N atoms. The redox properties were evaluated by cyclic voltammograms. It was shown that these two complexes can catalyze electrochemical reduction of proton to molecular hydrogen. (c) 2005 Elsevier B.V. All rights reserved.