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Room temperature phosphorescent triarylborane functionalized iridium complexes

Kumar, George Rajendra and Behera, Santosh Kumar and Thilagar, Pakkirisamy (2019) Room temperature phosphorescent triarylborane functionalized iridium complexes. In: DALTON TRANSACTIONS, 48 (20). pp. 6817-6823.

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Official URL: https://dx.doi.org/10.1039/c9dt00590k


We report a series of room temperature phosphorescent compounds 1-6 composed of triarylborane (TAB) and cyclometallated iridium complexes. The optical characteristics such as energy of transition and luminescence quantum yield of these compounds can be conveniently fine-tuned by judiciously varying the cyclometallating ligand and the spacer between boron and iridium centers. Compounds 1-6 exhibit bright phosphorescence with the emission color ranging from green to red under a N-2 atmosphere. A maximum quantum yield of 0.95 was observed for complex 2. Complexes 1-6 exhibit a rare type of dual emission from singlet and triplet excited states under ambient conditions. The experimental observations are well supported by the theoretical calculations.

Item Type: Journal Article
Additional Information: copyright for this article belongs to ROYAL SOC CHEMISTRY
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 31 Jul 2019 10:17
Last Modified: 31 Jul 2019 10:17
URI: http://eprints.iisc.ac.in/id/eprint/63241

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