Photoinduced face-inversion of conjugated tetraene ligands on a Pd-Pd-Pd moiety.
The linear sandwich tripalladium complexes [Pd3{Ar(CH=CH)4Ar}2[BArf]2 (Ar = Ph, p-t-Bu-C6H4, p-styryl-C6H4) undergo photoinduced isomerization involving face-inversion of the tetraene ligands. Irradiation of these complexes with visible light (>510 nm) resulted in rac (staggered sandwich) to meso (eclipsed sandwich) isomerization. The structures of rac and meso isomers are determined by X-ray crystallographic analyses.
Murahashi
Tetsuro
T
Department of Applied Chemistry and Frontier Research Center, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan. tetsu@chem.eng-u.ac.jp
Higuchi
Yutaka
Y
Katoh
Tetsuya
T
Kurosawa
Hideo
H