title: Optical electron transfer through 2,7-diethynylfluorene spacers in mixed-valent complexes containing electron-rich "(η2-dppe)(η5-C5Me5)Fe" endgroups.
abstract: We report in this communication the study of the intramolecular electron transfer through a 2,7-diethynylfluorenyl spacer in the Fe(II)/Fe(III) mixed-valent (MV) complex [(η(2)-dppe)(η(5)-C(5)Me(5))FeC≡C(2,7-C(21)H(24))C≡CFe(η(5)-C(5)Me(5))(η(2)-dppe)][PF(6)] (1[PF(6)]). The complex is generated in situ by comproportionation from its homovalent dinuclear Fe(II) and Fe(III) parents (1 and 1[PF(6)](2)). It is shown that electronic delocalization is much more effective through a 2,7-fluorenyl than through a 4,4'-biphenyl bridging unit.
authors: Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France.
authors: Floriane
authors: F
authors: Malvolti
authors: Cedric
authors: C
authors: Rouxel
authors: Olivier
authors: O
authors: Mongin
authors: Philippe
authors: P
authors: Hapiot
authors: Loic
authors: L
authors: Toupet
authors: Mireille
authors: M
authors: Blanchard-Desce
authors: Frédéric
authors: F
authors: Paul