The role of singlet and triplet excited states in the photochemistry of 3,5-cycloheptadienone

1968 ◽  
Vol 90 (5) ◽  
pp. 1300-1307 ◽  
Author(s):  
David I. Schuster ◽  
Bruce R. Sckolnick ◽  
Tui-Tseng H. Lee
Keyword(s):  
Excited States ◽  
Triplet Excited States

Picosecond dynamics of an IR sensitive squaraine dye. Role of singlet and triplet excited states in the photosensitization of TiO2 nanoclusters

1997 ◽  
Vol 106 (15) ◽  
pp. 6404-6411 ◽  
Author(s):  
Di Liu ◽  
Prashant V. Kamat ◽  
K. George Thomas ◽  
K. J. Thomas ◽  
Suresh Das ◽  
...  
Keyword(s):  
Excited States ◽  
Squaraine Dye ◽  
Triplet Excited States

Electron Energy Loss and DFT/SCI Study of the Singlet and Triplet Excited States of Aminobenzonitriles and Benzoquinuclidines:  Role of the Amino Group Twist Angle

1999 ◽  
Vol 103 (39) ◽  
pp. 7766-7772 ◽  
Author(s):  
Christophe Bulliard ◽  
Michael Allan ◽  
Gabriele Wirtz ◽  
Edwin Haselbach ◽  
Klaas A. Zachariasse ◽  
...  
Keyword(s):  
Energy Loss ◽  
Excited States ◽  
Electron Energy ◽  
Twist Angle ◽  
Amino Group ◽  
Triplet Excited States ◽  
Electron Energy Loss

scholarly journals Mononuclear Copper(I) 3-(2-pyridyl)pyrazole Complexes: The Crucial Role of Phosphine on Photoluminescence

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6869
Author(s):  
Kristina F. Baranova ◽  
Aleksei A. Titov ◽  
Alexander F. Smol’yakov ◽  
Andrey Yu. Chernyadyev ◽  
Oleg A. Filippov ◽  
...  
Keyword(s):  
Excited States ◽  
Theoretical Calculations ◽  
Green Emission ◽  
Emission Efficiency ◽  
Bright Yellow ◽  
Ligand Type ◽  
Wide Range ◽  
Emission Behavior ◽  
Triplet Excited States

A series of emissive Cu(I) cationic complexes with 3-(2-pyridyl)-5-phenyl-pyrazole and various phosphines: dppbz (1), Xantphos (2), DPEPhos (3), PPh3 (4), and BINAP (5) were designed and characterized. Complexes obtained exhibit bright yellow-green emission (ca. 520–650 nm) in the solid state with a wide range of QYs (1–78%) and lifetimes (19–119 µs) at 298 K. The photoluminescence efficiency dramatically depends on the phosphine ligand type. The theoretical calculations of buried volumes and excited states explained the emission behavior for 1–5 as well as their lifetimes. The bulky and rigid phosphines promote emission efficiency through the stabilization of singlet and triplet excited states.

scholarly journals The Role of Local Triplet Excited States and D-A Relative Orientation in Thermally Activated Delayed Fluorescence: Photophysics and Devices

2016 ◽  
Vol 3 (12) ◽  
pp. 1600080 ◽  
Author(s):  
Fernando B. Dias ◽  
Jose Santos ◽  
David R. Graves ◽  
Przemyslaw Data ◽  
Roberto S. Nobuyasu ◽  
...  
Keyword(s):  
Excited States ◽  
Delayed Fluorescence ◽  
Relative Orientation ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Triplet Excited States

The role of zero-field splitting and π-stacking interaction of different nitrogen-donor ligands on the optical properties of luminescent rhenium tricarbonyl complexes

2021 ◽  
Author(s):  
Plinio Cantero-López ◽  
Yoan Hidalgo-Rosa ◽  
Zoraida Sandoval-Olivares ◽  
Julián Santoyo-Flores ◽  
Pablo Mella ◽  
...  
Keyword(s):  
Excited States ◽  
Coordination Compounds ◽  
Donor Ligands ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Nitrogen Donor Ligands ◽  
Nitrogen Donor ◽  
Π Stacking Interaction ◽  
Rhenium Tricarbonyl

Rhenium tricarbonyl complexes are one of the most important classes of coordination compounds in inorganic chemistry. Exploring their luminescent excited states, lowest singlet (S1), and the lowest triplet (T1), is...

Unconventional singlet fission materials

2021 ◽  
Author(s):  
Tobias Ullrich ◽  
Dominik Munz ◽  
Dirk M. Guldi
Keyword(s):  
Excited States ◽  
Singlet Fission ◽  
Triplet Excited States

Singlet fission (SF) is a photophysical downconversion pathway, in which a singlet excitation transforms into two triplet excited states.

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