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Article

Series of Near-IR-Absorbing Transition Metal Complexes with Redox Active Ligands

1
Inorganic Materials Chemistry research group, Department of Chemistry, University of Turku, FI-20014 Turku, Finland
2
Department of Chemistry, P.O. Box 35, University of Jyvaskyla, FI-40014 Jyvaskyla, Finland
3
Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
4
Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Andrey I. Poddel’sky
Molecules 2020, 25(11), 2531; https://doi.org/10.3390/molecules25112531
Received: 28 April 2020 / Revised: 27 May 2020 / Accepted: 27 May 2020 / Published: 29 May 2020
New soluble and intensely near-IR-absorbing transition metal (Ti, Zr, V, Ni) complexes were synthesized using a redox non-innocent N,N’-bis(3,5-di-tertbutyl-2-hydroxy-phenyl) -1,2-phenylenediamine (H4L) as a ligand precursor. In all the complexes, ([Ti(Lox)2, [Zr(Lox)2], [V(Lsq1)(HLox)] and [Ni(HLox)2], two organic molecules coordinate to the metal center as tri- or tetradentate ligands. The solid-state structures of the complexes were determined using single crystal XRD, and the compounds were further characterized with Electrospray Ionisation Mass Spectrometry (ESI-MS). Thermoanalytical measurements indicated the thermal stabilities of the complexes. All compounds absorb strongly in the near-IR region and show very interesting magnetic and electrochemical properties. Moreover, it was shown that the V and Ni complexes can also convert absorbed near-IR photons to (un)paired electrons, which indicates great promise in photovoltaic applications. View Full-Text
Keywords: metal organic complex; redox-active ligand; non-innocent ligands metal organic complex; redox-active ligand; non-innocent ligands
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MDPI and ACS Style

Salojärvi, E.; Peuronen, A.; Lahtinen, M.; Huhtinen, H.; Vlasenko, L.S.; Lastusaari, M.; Lehtonen, A. Series of Near-IR-Absorbing Transition Metal Complexes with Redox Active Ligands. Molecules 2020, 25, 2531. https://doi.org/10.3390/molecules25112531

AMA Style

Salojärvi E, Peuronen A, Lahtinen M, Huhtinen H, Vlasenko LS, Lastusaari M, Lehtonen A. Series of Near-IR-Absorbing Transition Metal Complexes with Redox Active Ligands. Molecules. 2020; 25(11):2531. https://doi.org/10.3390/molecules25112531

Chicago/Turabian Style

Salojärvi, Esko, Anssi Peuronen, Manu Lahtinen, Hannu Huhtinen, Leonid S. Vlasenko, Mika Lastusaari, and Ari Lehtonen. 2020. "Series of Near-IR-Absorbing Transition Metal Complexes with Redox Active Ligands" Molecules 25, no. 11: 2531. https://doi.org/10.3390/molecules25112531

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