Direct Observation of Long-Lived Upper Excited Triplet States and Intersystem Crossing in Anthracene-Containing PtII Complexes

2019 ◽  
Vol 10 (24) ◽  
pp. 7767-7773
Author(s):  
Wenbo Yang ◽  
Jianzhang Zhao ◽  
Geliang Tang ◽  
Xiaoxin Li ◽  
Gagik G. Gurzadyan
Keyword(s):  
Direct Observation ◽  
Intersystem Crossing ◽  
Triplet States ◽  
Excited Triplet ◽  
Excited Triplet States

Highly Efficient, Red Delayed Fluorescent Emitters with Exothermic Reverse Intersystem Crossing via Hot Excited Triplet States

2020 ◽  
Vol 124 (38) ◽  
pp. 20816-20826
Author(s):  
Ruifang Wang ◽  
Taiping Hu ◽  
Yanwei Liu ◽  
Xiaofang Wei ◽  
Jianjun Liu ◽  
...  
Keyword(s):  
Intersystem Crossing ◽  
Triplet States ◽  
Excited Triplet ◽  
Highly Efficient ◽  
Excited Triplet States

Zusammenhang zwischen Schweratominduzierter Fluoreszenzlöschung und Termschema von mehrkernigen aromatischen Kohlenwasserstoffen / Correlation between Heavy-atom induced Fluorescence Quenching and Energy Levels of Polynuclear Aromatic Hydrocarbons

1973 ◽  
Vol 28 (10) ◽  
pp. 1743-1744
Author(s):  
H. Dreeskamp ◽  
M. Zander
Keyword(s):  
Aromatic Hydrocarbons ◽  
Energy Gap ◽  
Energy Levels ◽  
Heavy Atom ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Intersystem Crossing ◽  
Triplet States ◽  
Excited Triplet ◽  
Wide Energy ◽  
Excited Triplet States

The observation that the fluorescence of certain polynuclear aromatic hydrocarbons (perylene, 1.2 ;5.6-dibenzoperylene, 9.10-diphenylanthracene and rubrene) is quenched by alkyl iodides only slightly is explained on the basis of the energy levels of these hydrocarbons. In these systems an effective radiationless desactivation of the fluorescing state S1 by intersystem crossing into the triplet manifold is prevented by a wide energy gap between S1 and the lowest triplet state, and the absence of excited triplet states below s,.

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