6533b85bfe1ef96bd12bb6e5

RESEARCH PRODUCT

Ordering the amorphous – Structures in PBD LED materials

Ingo OrgzallBurkhard SchulzJulen LarruceaBirgit DietzelFranziska Emmerling

subject

Biphenylbusiness.industryChemistryOrganic ChemistryInstitut für Physik und AstronomieCrystal structureAnalytical ChemistryAmorphous solidCharacterization (materials science)law.inventionInorganic Chemistrychemistry.chemical_compoundCrystallographylawOLEDOptoelectronicsCrystallizationbusinessSpectroscopy

description

Abstract The class of 2,5 disubstituted-1,3,4-oxadiazoles containing a biphenyl unit on one side is intensively used as electron transport materials to enhance the performance of organic light emitting diodes (OLEDs). In contrast to the ongoing research on these materials insights in their structure-property relationships are still incomplete. To overcome the structural tentativeness and ambiguities the crystal structures of 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, that of the related compound 2-(4-biphenylyl)-5-phenyl-1,3,4-oxadiazole and of 2-(4-biphenylyl)-5-(2,6-dimethylphenyl)-1,3,4-oxadiazole are determined. A comparison with the results of GAUSSIAN03 calculations and similar compounds in the Cambridge Structural Database leads to a profound characterization.

yearjournalcountryeditionlanguage
2012-12-01Journal of Molecular Structure
https://doi.org/10.1016/j.molstruc.2012.04.040