The azadithiolate complex Fe2[(SCH2)2NMe](CO)6 reacts with borane to give an initial 1:1 adduct, which spontaneously decarbonylates to give Fe2[(SCH2)2NMeBH3](CO)5. Featuring a Fe-H-B three-center, two-electron interaction, the pentacarbonyl complex is a structural model for H2 complexes invoked in the [FeFe]-hydrogenases. The pentacarbonyl compound is a "σ complex", where a B-H σ bond serves as a ligand for iron. The structure of this σ complex was characterized by variableerature NMR spectroscopy and X-ray crystallography. Complementary to the 1:1 borane adduct is the quaternary ammonium complex [Fe2[(SCH2)2NMe2](CO)6]+, which was also characterized. It represents a kinetically robust analogue of the N-protonated amine cofactor, as indicated by its mild reduction potential.
Lalaoui, N., Woods, T., Rauchfuss, T., & Zampella, G. (2017). Characterization of a borane σ complex of a diiron dithiolate: Model for an elusive dihydrogen adduct. ORGANOMETALLICS, 36(11), 2054-2057.
Citazione: | Lalaoui, N., Woods, T., Rauchfuss, T., & Zampella, G. (2017). Characterization of a borane σ complex of a diiron dithiolate: Model for an elusive dihydrogen adduct. ORGANOMETALLICS, 36(11), 2054-2057. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | Si |
Titolo: | Characterization of a borane σ complex of a diiron dithiolate: Model for an elusive dihydrogen adduct |
Autori: | Lalaoui, N; Woods, T; Rauchfuss, T; Zampella, G |
Autori: | |
Data di pubblicazione: | 2017 |
Lingua: | English |
Rivista: | ORGANOMETALLICS |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1021/acs.organomet.7b00236 |
Appare nelle tipologie: | 01 - Articolo su rivista |