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Title: Bay-region functionalisation of Ar-BIAN ligands and their use within highly absorptive cationic iridium(III) dyes
Authors: Kamrul Hasan
Wang, Jingyi
Pal, Amlan K.
Hierlinger, Claus
Guerchais, Véronique
Soo, Han Sen
García, Felipe
Zysman-Colman, Eli
Keywords: Ar-BIAN Ligands
Heteroleptic Iridium Complexes
Issue Date: 2017
Source: Kamrul Hasan, Wang, J., Pal, A. K., Hierlinger, C., Guerchais, V., Soo, H. S., . . . Zysman-Colman, E. (2017). Bay-region functionalisation of Ar-BIAN ligands and their use within highly absorptive cationic iridium(III) dyes. Scientific Reports, 7, 15520-. doi:10.1038/s41598-017-14996-4
Series/Report no.: Scientific Reports
Abstract: We report the synthesis, UV-vis absorption, electrochemical characterisation, and DFT studies of five panchromatic, heteroleptic iridium complexes (four of which are new) supported by Ar-BIAN ligands. In particular, the synthesis of an ester-functionalised Ar-BIAN ligand was carried out by a mechanochemical milling approach, which was advantageous over conventional metal templating solution methods in terms of reaction time and product purity. The introduction of ester and carboxylate functionalities at the bay region of the acenaphthene motif increases each ligand’s π-accepting capacity and imparts grafting capabilities to the iridium complexes. These complexes have absorption profiles that surpass the renowned N3 dye [Ru(dcbpy)2(NCS)2] (dcbpy = 4,4′-dicarboxy-2,2′-bipyridine), making them of interest for solar-energy-harvesting applications.
DOI: 10.1038/s41598-017-14996-4
Rights: © 2017 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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