Influence of ligand structure and molecular geometry on the properties of d polypyridinic transition metal complexes |
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| Authors: | Mauricio Arias,Javier Concepció n,Irma Crivelli,Alvaro Delgadillo,Ramiro Dí az,Angé lica Francois,Francisco Gajardo,Rosa Ló pez,Ana Marí a Leiva,Bá rbara Loeb |
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| Affiliation: | 1. Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago, Chile;2. Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile;3. Facultad de Ciencias, Universidad Católica de Temuco, Casilla 15-D, Temuco, Chile |
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| Abstract: | Different strategies to improve the excited state properties of polypyridinic complexes by varying ligand structure and molecular geometry are described. Bidentate and tetradentate ligands based on fragments as dipyrido[3,2-a:2′,3′-c]phenazine, dppz, and pyrazino[2,3-f][1,10]-phenanthroline, ppl, have been used. Quinonic residues were fused to these basic units to improve acceptor properties. Photophysical studies were performed in order to test theoretical predictions. |
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| Keywords: | dppz ppl Tetradentate ligand Lifetime Energy gap law Quinonic fragment |
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