Synthesis, Characterization, and Electrochemical and Photophysical Properties of Rhenium(I) and ruthenium(II) complexes of 2,2?-bipyridine ligand functionalized ?-cyclodextrins

1995 ◽  
Vol 78 (3) ◽  
pp. 619-628 ◽  
Author(s):  
Robert Deschenaux ◽  
Thomas Ruch ◽  
Pierre-Fran�ois Deschenaux ◽  
Alberto Juris ◽  
Raymond Ziessel
Keyword(s):  
Photophysical Properties ◽  
Bipyridine Ligand

Photophysical Properties of the ReI and RuII Complexes of a New C60-Substituted Bipyridine Ligand

2002 ◽  
Vol 8 (10) ◽  
pp. 2314 ◽  
Author(s):  
Nicola Armaroli ◽  
Gianluca Accorsi ◽  
Delphine Felder ◽  
Jean-François Nierengarten
Keyword(s):  
Photophysical Properties ◽  
Bipyridine Ligand

Solvent Dependence of Structural Dynamics and Spin-flip Processes in 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (ortho-3CzBN)

2020 ◽  
Author(s):  
Masaki Saigo ◽  
Kiyoshi Miyata ◽  
Hajime Nakanotani ◽  
Chihaya Adachi ◽  
Ken Onda
Keyword(s):  
Dft Calculations ◽  
Excited States ◽  
Structural Changes ◽  
Photophysical Properties ◽  
Delayed Fluorescence ◽  
Time Resolved ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Solvent Dependence ◽  
Acetonitrile Solutions

We have investigated the solvent-dependence of structural changes along with intersystem crossing of a thermally activated delayed fluorescence (TADF) molecule, 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (o-3CzBN), in toluene, tetrahydrofuran, and acetonitrile solutions using time-resolved infrared (TR-IR) spectroscopy and DFT calculations. We found that the geometries of the S1 and T1 states are very similar in all solvents though the photophysical properties mostly depend on the solvent. In addition, the time-dependent DFT calculations based on these geometries suggested that the thermally activated delayed fluorescence process of o-3CzBN is governed more by the higher-lying excited states than by the structural changes in the excited states.<br>

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