Abstract
Synthetic, structural, photophysical, and electrochemical study of [Ir(ppy)2(py)2](BF4) (1(BF4)) and four di-N–N-bridged complexes of [Ir(ppy)2(bpa)]2(BF4)2 (2A(BF4)2), [Ir(ppy)2((cis-bpe))]2(BF4)2 (2B(BF4)2), [Ir(ppy)2(tmp)]2(BF4)2 (2C(BF4)2), and [Ir(ppy)2(bpy)]4(BF4)4 (3(BF4)4) are described with Hppy = 2-phenylpyridine, py = pyridine, N–N = dipyridyl ligands of 1,2-bis(4-pyridyl)ethane (bpa), cis-1,2-bis(4-pyridyl)ethylene (cis-bpe), 1,3-di(4-pyridyl)propane (tmp), and 4,4'-dipyridine (bpy). Five single-crystal structures of 1(PF6), 2A(NO3)2, 2A(PF6)2, 2B(PF6)2, and 3(NO3)4 were determined, supporting the dibridged structures and presence of a variety of stereoisomers. Application of four luminescent complexes, 1(BF4), 2A(BF4)2, 2C(BF4)2, and 3(BF4)4, in solid-state light-emitting electrochemical cells (LECs) is reported. The work demonstrates an effective approach to realize efficient LECs based on dibridged di- and multinuclear cationic transition-metal complexes with a suitably long alkyl spacer in the bridging ligand.
Original language | English |
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Pages (from-to) | 3517-3526 |
Number of pages | 10 |
Journal | European Journal of Inorganic Chemistry |
Volume | 2020 |
Issue number | 36 |
DOIs | |
Publication status | Published - 2020 Sept 30 |
Keywords
- Iridium
- Ligand effects
- Luminescence
- Molecular devices
- Synthesis design
ASJC Scopus subject areas
- Inorganic Chemistry
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CCDC 1522770: Experimental Crystal Structure Determination
Shiu, L.-C. (Contributor), Chang, B.-R. (Contributor), Hsiao, M. C.-S. (Contributor), Sie, W.-S. (Contributor), Wu, M.-L. (Contributor), Huang, L.-X. (Contributor), Wang, C.-M. (Contributor), Lee, G.-H. (Contributor), Chang, I.-J. (Contributor), Su, H.-C. (Contributor) & Shiu, K.-B. (Contributor), Unknown Publisher, 2020
DOI: 10.5517/ccdc.csd.cc1n3kmy, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc1n3kmy&sid=DataCite
Dataset
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CCDC 1522773: Experimental Crystal Structure Determination
Shiu, L.-C. (Contributor), Chang, B.-R. (Contributor), Hsiao, M. C.-S. (Contributor), Sie, W.-S. (Contributor), Wu, M.-L. (Contributor), Huang, L.-X. (Contributor), Wang, C.-M. (Contributor), Lee, G.-H. (Contributor), Chang, I.-J. (Contributor), Su, H.-C. (Contributor) & Shiu, K.-B. (Contributor), Unknown Publisher, 2020
DOI: 10.5517/ccdc.csd.cc1n3kq1, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc1n3kq1&sid=DataCite
Dataset
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CCDC 1522769: Experimental Crystal Structure Determination
Shiu, L.-C. (Contributor), Chang, B.-R. (Contributor), Hsiao, M. C.-S. (Contributor), Sie, W.-S. (Contributor), Wu, M.-L. (Contributor), Huang, L.-X. (Contributor), Wang, C.-M. (Contributor), Lee, G.-H. (Contributor), Chang, I.-J. (Contributor), Su, H.-C. (Contributor) & Shiu, K.-B. (Contributor), Unknown Publisher, 2020
DOI: 10.5517/ccdc.csd.cc1n3klx, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc1n3klx&sid=DataCite
Dataset