0000000000286614
AUTHOR
Sebastian Preiß
Gold(II) Porphyrins in Photoinduced Electron Transfer Reactions
Chemistry - a European journal 25(23), 5940 - 5949 (2019). doi:10.1002/chem.201900050
Gold(iii) tetraarylporphyrin amino acid derivatives: ligand or metal centred redox chemistry?
EPR spectroscopy and DFT calculations show that the site of reduction of porphyrinato gold(iii) complexes depends on the counterions X, the meso substituents R and the solvent.
Structure and reactivity of a mononuclear gold(II) complex.
Mononuclear gold(II) complexes are very rare labile species. Transient gold(II) species have been suggested in homogeneous catalysis and in medical applications, but their geometric and electronic structures have remained essentially unexplored: even fundamental data, such as the ionic radius of gold(II), are unknown. Now, an unprecedentedly stable neutral gold(II) complex of a porphyrin derivative has been isolated, and its structural and spectroscopic features determined. The gold atom adopts a 2+2 coordination mode in between those of gold(III) (four-coordinate square planar) and gold(I) (two-coordinate linear), owing to a second-order Jahn–Teller distortion enabled by the relativistical…
Facile access to foldable redox-active flavin-peptide conjugates
A convenient approach for the synthesis of foldable redox-active flavin peptide conjugates was established. A model β-hairpin oligopeptide motif was utilized to demonstrate that azidolysine side-chains are readily functionalised with an alkyne-bearing flavine derivative. The folding equilibrium of the peptide backbone as well as the redox behaviour of the flavin moieties remains intact after the conjugation.
CCDC 1520924: Experimental Crystal Structure Determination
Related Article: Sebastian Preiß, Christoph Förster, Sven Otto, Matthias Bauer, Patrick Müller, Dariush Hinderberger, Haleh Hashemi Haeri, Luca Carrella, Katja Heinze|2017|Nature Chemistry|9|1249|doi:10.1038/nchem.2836