Emission Enhancement by Intramolecular Stacking between Heteroleptic Iridium(III) Complex and Flexibly Bridged Aromatic Pendant Group
Inorganic Chemistry 2019
Kaspars Traskovskis, Valdis Kokars, Sergejs Beļakovs, Natālija Lesiņa, Igors Mihailovs, Aivars Vembris

Phosphorescent iridium(III) complexes suffer from a strong aggregation quenching, limiting their use in solution-processed or crystalline organic light-emitting diodes. Here we report how an intramolecular stacking between a flexibly bridged bulky aromatic pendant group and the core of nonionic heteroleptic complex can be exploited to minimize the negative effects of this drawback. The stacked conformation provides a rigid sterical shielding of the polar molecular surface, improving photoluminescence quantum yield of the complex both in solution and crystalline state. ©


DOI
10.1021/acs.inorgchem.8b03273
Hyperlink
https://pubs.acs.org/doi/10.1021/acs.inorgchem.8b03273

Traskovskis, K., Kokars, V., Beļakovs, S., Lesiņa, N., Mihailovs, I., Vembris, A. Emission Enhancement by Intramolecular Stacking between Heteroleptic Iridium(III) Complex and Flexibly Bridged Aromatic Pendant Group. Inorganic Chemistry, 2019, Vol. 58, No. 7, pp.4214-4222. ISSN 0020-1669. Available from: doi:10.1021/acs.inorgchem.8b03273

Publication language
English (en)
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