Journal
INORGANIC CHEMISTRY
Volume 56, Issue 14, Pages 7811-7820Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b00539
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Funding
- Agency for Science, Technology and Research (A*STAR), AME IRG grant [A1783c0003]
- NTU [M4080552, M4081012]
- MOE [M4011441, M4011144, M4011611]
- Nanyang Assistant Professorship [M4081154]
- Solar Fuels Laboratory at NTU
- Singapore Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Program
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Aryl bis(imino)acenaphthenes (Ar-BIANs) are well-established rigid and sterically bulky diimine ligands, which are redox-noninnocent and versatile pi-acceptors due to their low-lying pi* orbitals and are frequently used to. bind transition metals. However, the coordination chemistry of Ar-BIAN ligands to main group elements is not as well-developed as that of their transition metal counterparts. In particular, there are no comprehensive studies describing the spectroscopic and electrochemical properties of main group Ar-BIAN complexes. Herein, we report the synthesis and full characterization of a series of new indium(III) Ar-BIAN complexes, bearing 2,6-dialkyl (1b and 2b), 4-nitro (3b), and 4-dimethylamino (4b) groups at the aryl-diimine part of the ligand. Their optical and electrochemical properties have been revealed by UV-vis spectroscopy and cyclic voltammetry, respectively. Additionally, DFT calculations were performed to gain insights into the nature of the properties displayed.
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