Cyclometallated iridium(III) complex with 2-(2,4-difluorophenyl)pyridyl and norbornene-substituted pyrazolonate ligands and related electroluminescent polymers

Cyclometallated iridium(III) complex with 2-(2,4-difluorophenyl)pyridyl and... New cyclometallated iridium(III) complex, NBEPzIr(Dfppy)2 · 2CH2Cl2 (I) (NBEPzH is 1-phenyl-3-methyl-4-(5-bicyclo[2.2.1]hept-5-en-2-yl)-5-pyrazolone, and DfppyH is 2-(2,4-difluorophenyl)pyridine), is synthesized and structurally characterized. Copolymers with carbazole and iridium-containing fragments in side chains (P1–P4) are obtained from monomer I by the ROMP method (ROMP is Ring-Opening Metathesis Polymerization). Their photoluminescence and electroluminescence properties are studied. Copolymers P1–P4 exhibit the green electroluminescence. The maximum current efficiency (2.60 cd/A) and power efficiency (0.63 Lm/W) are reached using emitter P3. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

Cyclometallated iridium(III) complex with 2-(2,4-difluorophenyl)pyridyl and norbornene-substituted pyrazolonate ligands and related electroluminescent polymers

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Physical Chemistry; Inorganic Chemistry
ISSN
1070-3284
eISSN
1608-3318
D.O.I.
10.1134/S1070328415090018
Publisher site
See Article on Publisher Site

Abstract

New cyclometallated iridium(III) complex, NBEPzIr(Dfppy)2 · 2CH2Cl2 (I) (NBEPzH is 1-phenyl-3-methyl-4-(5-bicyclo[2.2.1]hept-5-en-2-yl)-5-pyrazolone, and DfppyH is 2-(2,4-difluorophenyl)pyridine), is synthesized and structurally characterized. Copolymers with carbazole and iridium-containing fragments in side chains (P1–P4) are obtained from monomer I by the ROMP method (ROMP is Ring-Opening Metathesis Polymerization). Their photoluminescence and electroluminescence properties are studied. Copolymers P1–P4 exhibit the green electroluminescence. The maximum current efficiency (2.60 cd/A) and power efficiency (0.63 Lm/W) are reached using emitter P3.

Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Sep 2, 2015

References

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