Journal Article10.1002/CHEM.202102745
Exciton Coupling in Redox-Active Salen based Self-Assembled Metallacycles.
Khrystyna Herasymchuk,Magali Allain,Gregory A. MacNeil,Vincent Carré,Frédéric Aubriet,Daniel B. Leznoff,Marc Sallé,Sébastien Goeb,Tim Storr +8 more
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TL;DR: The incorporation of a redox-active nickel salen complex into supramolecular structures was explored via coordination-driven self-assembly with homobimetallic ruthenium complexes (bridged by oxalato or 5,8-dihydroxy-1,4-naphthoquinato ligands) as mentioned in this paper.
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Abstract: The incorporation of a redox-active nickel salen complex into supramolecular structures was explored via coordination-driven self-assembly with homobimetallic ruthenium complexes (bridged by oxalato or 5,8-dihydroxy-1,4-naphthoquinato ligands). The self-assembly resulted in the formation of a discrete rectangle using the oxalato complex and either a rectangle or a catenane employing the larger naphthoquinonato complex. The formation of the interlocked self-assembly was determined to be solvent and concentration dependent. The electronic structure and stability of the oxidized metallacycles was probed using electrochemical experiments, UV-Vis-NIR absorption, EPR spectroscopy and DFT calculations, confirming ligand radical formation. Exciton coupling of the intense near-infrared (NIR) ligand radical intervalence charge transfer (IVCT) bands provided further confirmation of the geometric and electronic structures in solution.
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Citations
Infrared spectral features of the charge carriers in nickel salen polymeric complexes
Julia S. Danilova,Evgenia Dmitrieva,Stanislav M. Avdoshenko,I. A. Chepurnaya,М. П. Карушев,A. M. Timonov +5 more
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Multicomponent Self-Assembly of Manganese(I)-Based NN∩NN Bis-Chelated Dinuclear Metallacrown Ethers: Synthesis, Characterization, Cation Binding, and Cytotoxicity Studies
Shruti Verma,Udit Kumar,Santhakumar Yeswanth Kumar,Diksha Tripathi,Ramanathan Padmanaban,Natarajan Sakthivel,Bala. Manimaran,Shruti Verma,Udit Kumar,Santhakumar Yeswanth Kumar,Diksha Tripathi,Ramanathan Padmanaban,Natarajan Sakthivel,Bala. Manimaran +13 more
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