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Early Relaxation Dynamics in the Photoswitchable Complex trans ‐[RuCl(NO)(py) 4 ] 2+
Author(s) -
Talotta Francesco,
BoggioPasqua Martial,
González Leticia
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000507
Subject(s) - photoisomerization , intersystem crossing , internal conversion , relaxation (psychology) , chemistry , dynamics (music) , ruthenium , isomerization , chemical physics , photochemistry , physics , catalysis , atomic physics , organic chemistry , excited state , psychology , social psychology , astronomy , acoustics , singlet state , spectral line
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.