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Updated: Jul 15, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Dinuclear RuIIPHEHAT and -TPAC complexes: effects of the second RuII center on their spectroelectrochemical
Benjamin Elias1, Leslie Herman, Cécile Moucheron
1Service de Chimie Organique et Photochimie, CP 160/08, Université Libre de Bruxelles, 50 Avenue F. D. Roosevelt, B-1050 Bruxelles, Belgium.
Abstract:
Four novel dinuclear RuII compounds and, for comparison purposes, two corresponding mononuclear complexes containing the PHEHAT or TPAC ligand (PHEHAT=1,10-phenanthrolino[5,6-b]-1,4,5,8,9,12-hexaazatriphenylene and TPAC=tetrapyrido[3,2-a:2',3'-c:3' ',2' '-h:2' '',3' ''-j]acridine) have been synthesized and characterized. Conclusions on the effects of dinucleation of these two bridging ligands can be drawn only for the compounds for which the results demonstrate that the bridging ligand is involved in the first electrochemical reduction and lowest emission energy. The behavior of these complexes, which is not always predictable, is discussed, and the differences are highlighted in this work. Interestingly, all of the compounds are luminescent except one dinuclear species, [(phen)2Ru-mu-PHEHAT-Ru(TAP)2]4+, which does not luminesce in MeCN and BuCN at room temperature.
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