Lanthanide complexes with acetylacetonate and 5,10,15,20-tetra (para-(4-flourobenzoyloxy)-meta-ethyloxy)-phenylporphyrin

摘要

Lanthanide complexes of acetylacetonato and 5,10,15,20-tetra(para-(4-flourobenzoyloxy)-meta-ethyloxy)-phenylporphyrin having the general formula Ln((FBOEP)_4P)acac (where Ln = Ho, Er, Yb, Lu; FBOEP = (PARA-(4-flourobenzoyloxy)-META-ETHYLOXY) phenyl; Hacac = acetylacetone; P = porphyrin) have been prepared and characterized. A structure is proposed in which one 5,10,15,20-tetra (para-(4-flourobenzoyloxy)-meta-ethyloxy)-phenylporphyrin is coordinated to a rare earth ion in a tetradentate fashion, while one acetylactetonate is coordinated to the same metal ion in a bidentate fashio. We investigated the photo-generated sharge behavior of the ligand and the coplex, Lu((FBOEP)_4P)acac, by means of surface photo-physics of excited states generated by absorption in the aggregate state.