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Nickel(ii) complexes of cyclen- and cyclam-pyridine: topological reorganisations induced by electron transfer

Abstract : The Ni(II) complexes of cyclen- and cyclam-pyridine (respectively 1-pyridin-2-ylmethyl-1,4,7,10-tetraazacyclododecane and 1-pyridin-2-ylmethyl-1,4,8,11-tetraazacyclotetradecane denoted [NiIIL1]2+ and [NiIIL2]2+) have been isolated and characterised by X-ray diffraction, UV-visible spectroscopy and electrochemical studies for the [NiIIL2]2+ complex. In particular, the [NiIIL2]2+ complex adopts two distinct and stable geometries (type I and V), which mainly differ by the macrocycle configuration. In solution, the isomerisation process between these two configurations is driven by the nickel-centered electron transfer.
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https://hal.univ-brest.fr/hal-01582659
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Submitted on : Wednesday, September 6, 2017 - 12:55:44 PM
Last modification on : Friday, February 4, 2022 - 4:16:05 PM

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Sanae El Ghachtouli, Cyril Cadiou, Isabelle Déchamps-Olivier, Françoise Chuburu, Michel Aplincourt, et al.. Nickel(ii) complexes of cyclen- and cyclam-pyridine: topological reorganisations induced by electron transfer. New Journal of Chemistry, Royal Society of Chemistry, 2006, 30 (3), ⟨10.1039/B515107D⟩. ⟨hal-01582659⟩

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