Observation of vinylidene emission in mixed phosphine/diimine complexes of Ru(II) at room temperature in solution

Modified glassy carbon electrode with AuNPs using cis-[RuCl(dppb)(bipy)(4-vpy)]+ as crossed linking agent

“…Calc. for C 46 TBAP, scan rate 100 mV s À1 , at room temperature, with E ox = 1200 mV and E 1/2 = 1125 mV, close to those found for similar chlorine complexes containing dppb, diimines and N-heterocyclic as ligands [20,21,32,[34][35][36][37][38].…”

Unexpected Impact of N-Alkyl Chain Length in Bis-2-cyanoacrylic Acid Substituted Phenothiazines on the Photovoltaic Response of DSSCs

“…However, the highest efficiency (4.72%) was determined for the device based on the dye with the ethyl chain ( PTZ-A ) due to a high J sc value (13.23 mA cm –2 ) that resulted from the UV–vis absorption ability of the photoanode sensitized with this dye (Figure ). Moreover, PTZ-A, as was presented in Table , exhibited the strongest interaction with the TiO 2 surface due to its higher adsorption energy (−41.91 kcal/mol), which may lead to faster charge transfer rates and enhanced DSSC performances . The effect of the application of a mixture of selected phenothiazine derivatives ( PTZ-A and PTZ-D ) in DSSCs was also studied.…”

“…Consequently, it can be concluded that nonradiative processes dominate the deactivation pathway in compounds PTZ-A – PTZ-D in all solvents but particularly in MeOH and DMF solutions, resulting in their low quantum yields related to the other solvents. Moreover, it is widely recognized that molecules undergoing charge transfer (CT) processes demonstrate increased nonradiative decay constants in solvents with higher polarity . This phenomenon occurs because of the stronger interaction between the solvent dipoles and dipoles of the excited compounds.…”

“…Moreover, PTZ-A, as was presented in Table 4, exhibited the strongest interaction with the TiO 2 surface due to its higher adsorption energy (−41.91 kcal/mol), which may lead to faster charge transfer rates and enhanced DSSC performances. 31 The effect of the application of a mixture of selected phenothiazine derivatives (PTZ-A and PTZ-D) in DSSCs was also studied. The dyes were selected based on their absorption properties with the N719.…”

Synthesis, structural, electrochemical, and spectroscopic studies of some (diimine)ruthenium nitrile complexes

“…This was rationalized as resulting from chloride quenching the fluorescence through a charge transfer from the halide to the excited state [17,18]. The vinylidene complex [RuCl(=C=CHPh)(PPh 3 ) 2 (bpy)]PF 6 exhibits blue luminescence upon irradiation with UV-vis light at room temperature in solution; the luminescence intensity is sensitive to the nature of the co-ligands, solvent polarity and temperature [19].…”