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• W4306913687 endingPage "17088" @default.
• W4306913687 startingPage "17080" @default.
• W4306913687 abstract "The self-assembly of a redox-active ethylenedioxythiophene (EDOT)-terpyridine-based tridentate ligand and cobalt(II) unit with different counteranions has led to a series of new cobalt(II) complexes [Co(L)2](X)2 (X = BF4 (1), ClO4 (2), and BPh4 (3)) (L = 4′-(3,4-ethylenedioxythiophene)-2,2′:6′,2″-terpyridine). The impact of various counteranions on stabilization and spin-state switching of the cobalt(II) center was explored through detailed magneto-structural investigation using variable temperature single-crystal X-ray diffraction, magnetic, spectroscopic, electrochemical, and spectroelectrochemical studies. All three complexes 1–3 consisted of an isostructural dicationic distorted octahedral CoN6 coordination environment offered by the two L ligands in a bis-meridional fashion and BF4–, ClO4–, and BPh4– as a counteranion, respectively. Complex 2 with ClO4– counteranion showed a reversible, gradual, and nearly complete spin-state switching between low-spin (LS) (S = 1/2) and high-spin (HS) (S = 3/2) states, while an incomplete spin-state switching behavior was observed for complexes 1 (BF4–) and 3 (BPh4–) in the measured temperature range of 350–2 K. The non-covalent cation–anion interactions played a significant role in stabilizing the spin-state in 1–3. Additionally, complexes 1–3 also exhibited interesting redox-stimuli-based reversible paramagnetic HS cobalt(II) (S = 3/2) to diamagnetic LS cobalt(III) (S = 0) conversion, offering an alternate way to switch the magnetic properties." @default.
• W4306913687 created "2022-10-21" @default.
• W4306913687 creator A5050925474 @default.
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• W4306913687 date "2022-10-20" @default.
• W4306913687 modified "2023-10-16" @default.
• W4306913687 title "Impact of Counteranion on Reversible Spin-State Switching in a Series of Cobalt(II) Complexes Containing a Redox-Active Ethylenedioxythiophene-Based Terpyridine Ligand" @default.
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• W4306913687 doi "https://doi.org/10.1021/acs.inorgchem.2c02313" @default.
• W4306913687 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36264687" @default.
• W4306913687 hasPublicationYear "2022" @default.
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