The effect of the electron-donor ability on the OLED efficiency of twisted donor-acceptor type emitters

2021 ◽  
pp. 106187
Author(s):  
Dongwook Yang ◽  
Jae-Min Kim ◽  
Jin-Suk Huh ◽  
Jang-Joo Kim ◽  
Jong-In Hong
Keyword(s):  
Electron Donor ◽  
Donor Acceptor ◽  
Donor Ability ◽  
Electron Donor Ability

Application of the Variable Oxygen Probe to Determine the π-Electron Donor Ability of the Alkyne Group

2014 ◽  
Vol 67 (12) ◽  
pp. 1866 ◽  
Author(s):  
Benjamin L. Harris ◽  
Jonathan M. White
Keyword(s):  
Low Temperature ◽  
Electron Donor ◽  
Oxygen Probe ◽  
X Ray ◽  
X Ray Crystallography ◽  
Donor Ability ◽  
Structural Database ◽  
Derivatives Of ◽  
Electron Demand ◽  
Electron Donor Ability

Eight ester and ether derivatives of propargyl alcohol with varying electron demand were structurally characterised using low temperature X-ray crystallography, these were combined with seven derivatives obtained from the Cambridge Structural Database. Variable oxygen probe analysis of these derivatives provided evidence that the ethynyl substituent is a relatively weak π-electron donor, and is a slightly less effective donor than the C–C bond of an ethyl substituent.

Synthesis, Structure, and Reactivities of Iminosulfane- and Phosphane-Stabilized Carbones Exhibiting Four-Electron Donor Ability

2015 ◽  
Vol 21 (43) ◽  
pp. 15405-15411 ◽  
Author(s):  
Tomohito Morosaki ◽  
Wei-Wei Wang ◽  
Shigeru Nagase ◽  
Takayoshi Fujii
Keyword(s):  
Electron Donor ◽  
Donor Ability ◽  
Electron Donor Ability

Electron donor ability of the annelated end-groups of polymethine dyes

1990 ◽  
Vol 12 (3) ◽  
pp. 219-231 ◽  
Author(s):  
G.G. Dyadyusha ◽  
A.D. Kachkovski ◽  
M.L. Dekhtyar
Keyword(s):  
Electron Donor ◽  
Polymethine Dyes ◽  
End Groups ◽  
Donor Ability ◽  
Electron Donor Ability

DDQ-promoted thiocyanation of aromatic and heteroaromatic compounds

2007 ◽  
Vol 85 (11) ◽  
pp. 930-937 ◽  
Author(s):  
Hamid R Memarian ◽  
Iraj Mohammadpoor-Baltork ◽  
Kobra Nikoofar
Keyword(s):  
Electron Donor ◽  
Room Temperature ◽  
Ammonium Thiocyanate ◽  
Methanol Solution ◽  
Heteroaromatic Compounds ◽  
Rate Of Reaction ◽  
Donor Ability ◽  
Electron Donor Ability

Thiocyanation of various aromatic and heteroaromatic compounds has been achieved using ammonium thiocyanate in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) in methanol solution at room temperature and under reflux condition. The rate of reaction is influenced by the electron-donor ability of the aromatic nucleus.Key words: amines, DDQ, indoles, thiocyanation.

The Formation ofcyclo-P4 Ligands with Maximum Electron Donor Ability

1992 ◽  
Vol 31 (10) ◽  
pp. 1377-1379 ◽  
Author(s):  
Manfred Scheer ◽  
Christa Troitzsch ◽  
Peter G. Jones
Keyword(s):  
Electron Donor ◽  
Donor Ability ◽  
Electron Donor Ability
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