[FeFe]-Hydrogenase H-cluster mimics mediated by naphthalene monoimide derivatives of peri-substituted dichalcogenides. Issue 34 (12th July 2017)

• Record Type: Journal Article
• Authors: Abul-Futouh, Hassan; Zagranyarski, Yulian; Müller, Carolin; Schulz, Martin; Kupfer, Stephan; Görls, Helmar; El-khateeb, Mohammad; Gräfe, Stefanie; Dietzek, Benjamin; Peneva, Kalina; Weigand, Wolfgang
• Is Part Of: Dalton transactions. Volume 46:Issue 34(2017)
• Page Start: 11180
• Page End: 11191
• Publication Date: 2017-07-12
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt02079a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Synthetic models of the active site of [FeFe]-hydrogenase containing naphthalene monoimide as bridging linker. Abstract : Synthetic models of the active site of [FeFe]-hydrogenase containing naphthalene monoimide (NMI) of peri -substituted dichalcogenides as bridging linkers have been prepared and characterized using different spectroscopic methods. The influence of the imide functionality and the chalcogen atoms on the redox properties and the catalytic behaviour of complexes7–10 was studied using cyclic voltammetry. The results revealed that the imide functionality has improved the chemical stability of the reduced species and the replacement of the S atoms by Se caused a cathodic shift in the oxidation peaks. Moreover, the optical properties of compounds1, 2, 4, and5 and the respective diiron complexes7–10 were investigated by UV-Vis absorption and fluorescence spectroscopy assisted by quantum chemical simulations. The structures of complexes6–9 were confirmed by X-ray diffraction analysis.