Portal del Investigador
Effect of pH in the photoluminescence of a ruthenium complex featuring a derivative of the ligand pyrazine[2,3-f][1,10]-phenanthroline
Abstract
A new ruthenium complex, [Ru(bpy)2(dbe-ppl)](PF6)2 (bpy = 2,2′-bipyridine and dbe-ppl = dimethyl 4,4′-(pyrazino[2,3-f][1,10]phenanthroline-2,3-diyl)dibenzoate, has been synthesized and characterized by 1H NMR spectroscopy, UV–Vis, IR, and cyclic voltammetry. Irradiation on the MLCT band results in photoluminescence in both protic and aprotic solvents. The photoluminescence in water is pH dependent, it shows a behavior which can be described by the Henderson–Hasselbalch assuming the protonation/deprotonation of the excited state with a pKa of 2.40 ± 0.01.
Más información
| Título según WOS: | Effect of pH in the photoluminescence of a ruthenium complex featuring a derivative of the ligand pyrazine[2,3-f][1,10]-phenanthroline |
| Título según SCOPUS: | Effect of pH in the photoluminescence of a ruthenium complex featuring a derivative of the ligand pyrazine[2,3-f][1,10]-phenanthroline |
| Título de la Revista: | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY |
| Volumen: | 146 |
| Editorial: | Elsevier B.V. |
| Fecha de publicación: | 2013 |
| Página de inicio: | 61 |
| Página final: | 65 |
| Idioma: | English |
| DOI: |
10.1016/j.saa.2015.03.067 |
| Notas: | ISI, SCOPUS |