Early Relaxation Dynamics in the Photoswitchable Complex <i>trans</i>‐[RuCl(NO)(py)<sub>4</sub>]<sup>2+</sup>
Francesco Talotta, Martial Boggio‐Pasqua, Leticia González
Abstract
Abstract The design of photoswitchable transition metal complexes with tailored properties is one of the most important challenges in chemistry. Studies explaining the underlying mechanisms are, however, scarce. Herein, the early relaxation dynamics towards NO photoisomerization in trans ‐[RuCl(NO)(py) 4 ] 2+ is elucidated by means of non‐adiabatic dynamics, which provided time‐resolved information and branching ratios. Three deactivation mechanisms (I, II, III) in the ratio 3:2:4 were identified. Pathways I and III involve ultrafast intersystem crossing and internal conversion, whereas pathway II involves only internal conversion.
Topics & Concepts
PhotoisomerizationIntersystem crossingInternal conversionRelaxation (psychology)ChemistryDynamics (music)RutheniumIsomerizationChemical physicsPhotochemistryPhysicsCatalysisAtomic physicsOrganic chemistryExcited stateSpectral lineSocial psychologySinglet stateAstronomyAcousticsPsychologyPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics researchMolecular Sensors and Ion Detection