N-Heterocyclic carbene (NHC) ligands annulated to free-base porphyrins: modulation of the electronic properties of the NHC upon protonation or metallation of the porphyrin
Porphyrins Conjugated with Peripheral Thiolato Gold(I) Complexes for Enhanced Photodynamic Therapy
作者:Jean-François Longevial、Khaled El Cheikh、Dina Aggad、Aurélien Lebrun、Arie van der Lee、Frederik Tielens、Sébastien Clément、Alain Morère、Marcel Garcia、Magali Gary-Bobo、Sébastien Richeter
DOI:10.1002/chem.201702975
日期:2017.10.9
Porphyrins fused to N-heterocyclic carbene gold(I) complexes were synthesized and used as photosensitizers for photodynamic therapy on MCF-7 cancer cells. Data show that the observed photodynamic effect depends on the nature of the ancillary thiolato ligands linked to gold(I).
Synthesis and structural characterisation of the first N-heterocyclic carbene ligand fused to a porphyrin
作者:Sébastien Richeter、Aurélie Hadj-Aïssa、Céline Taffin、Arie van der Lee、Dominique Leclercq
DOI:10.1039/b704681b
日期:——
The functionalisation of two neighboring β-pyrrolic positions of a porphyrin by a fused N-heterocyclic carbene ligand, the subsequent metallation of this external coordination site by palladium(II) and the structural characterisation of the resulting compounds are presented.
Synthesis, Characterization, and Electronic Properties of Porphyrins Conjugated with N-Heterocyclic Carbene (NHC)–Gold(I) Complexes
作者:Jean-François Longevial、Adam Langlois、Antoine Buisson、Charles H. Devillers、Sébastien Clément、Arie van der Lee、Pierre D. Harvey、Sébastien Richeter
DOI:10.1021/acs.organomet.5b00966
日期:2016.3.14
Porphyrins fused to peripheral N-heterocyclic carbenes (NHC) across two neighboring beta,beta-pyrrolic positions were used for the synthesis of different mono- and bis-carbenic gold(I) complexes. These studies also revealed how it is possible to modulate the reactivity of the peripheral NHC by deprotonating the inner NH groups of the fused free base porphyrin core. All complexes were fully characterized and displayed high stability, allowing the formation of mono-carbenic and also stable homoleptic and heteroleptic bis-carbenic Au(I) complexes. Optical and electrochemical properties of bis-catbenic Au(I) revealed no or weak electronic communication between the porphyrins, which behave as two independent groups.