350605-44-6Relevant articles and documents
{2Fe3S} clusters related to the di-iron sub-site of the H-centre of all-iron hydrogenases
Razavet,Davies,Hughes,Pickett
, p. 847 - 848 (2001)
The first synthetic {2Fe3S} clusters structurally related to the sub-site of the H-centre of the all-iron hydrogenases are described: tripodal dithiolate thioether ligands allow the synthesis of di-iron pentacarbonyls with differential (2:3) S ligation of the Fe atoms.
All-iron hydrogenase: Synthesis, structure and properties of {2Fe3S}-assemblies related to the di-iron sub-site of the H-cluster
Razavet, Mathieu,Davies, Sian C.,Hughes, David L.,Barclay, J. Elaine,Evans, David J.,Fairhurst, Shirley A.,Liu, Xiaoming,Pickett, Christopher J.
, p. 586 - 595 (2007/10/03)
Tripodal dithiolate thioether ligands MeC(CH2SH)2CH2SR (R = Me or Ph) provide a route to {2Fe3S}-complexes and syntheses are described. X-Ray crystal structures for two {2Fe3S}-pentacarbonyl derivatives and that for the first carbonyl cyanide are reported, together with temperature dependent 1H-NMR. Moessbauer, FTIR and redox potential data. The NMR data establish fluctionality associated with inversion at the thioether sulfur in the carbonyl complexes. The Moessbauer data affirm that the coordination environment of the two iron atoms in a dicyanide bridging carbonyl intermediate are differentiated. Bridging carbonyl intermediates have been structurally and spectroscopically identified in resting and CO inhibited forms of the sub-site of all-iron hydrogenases; the observation of a thermally unstable {2Fe3S}-bridging carbonyl intermediate is discussed in this context.
