The Influence of OH Groups in [Fe(CO)3]2[(μ-ECH2)2C(CH2OH)2] (E = S, Se) Complexes toward the Cathodic Process

[FeFe] hydrogenase model complexes [Fe(CO)3]2[(μ‐ECH2)2C(CH2OH)2] (E = S (1) or Se (2)) containing CH2OH bridgehead substituents were synthesized via reaction of equimolar amounts of 4, 4‐bis(hydroxymethyl)‐1, 2‐dithiolane (A) or 4, 4‐bis(hydroxymethyl)‐1, 2‐diselenolane (B) with Fe3(CO)12 in toluen...

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Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2013-07, Vol.639 (8-9), p.1512-1519
Main Authors: Trautwein, Ralf, Almazahreh, Laith R., Görls, Helmar, Weigand, Wolfgang
Format: Article
Language:English
Subjects:
Acetic acid
Chemical reduction
Chemical synthesis
Electrochemistry
Hydrogen bonding
Hydrogenase
Hydrogenases
Iron
Selenium
Toluene
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Summary:[FeFe] hydrogenase model complexes [Fe(CO)3]2[(μ‐ECH2)2C(CH2OH)2] (E = S (1) or Se (2)) containing CH2OH bridgehead substituents were synthesized via reaction of equimolar amounts of 4, 4‐bis(hydroxymethyl)‐1, 2‐dithiolane (A) or 4, 4‐bis(hydroxymethyl)‐1, 2‐diselenolane (B) with Fe3(CO)12 in toluene at 100 °C. The presence of OH groups in complexes 1 and 2 is found to influence the cathodic processes and their potentials. The catalytic reduction of acetic acid (AcOH) occurs by the anions 1– and 2–, while the neutral complexes are procatalysts.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.201300106