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Nickel(II) salicylaldiminates: Re-visiting a classic

Abstract : A series of Ni(II) trinuclear complexes, [Ni 3 (sala-X) 6 ] (sala-X = o-[(p-X-phenylimino)methyl]phenol; X = Br 1-Br, Me 1-Me and OMe 1-OMe), have been prepared and fully characterised. X-ray crystallographic studies reveal that the complexes are composed of three face-sharing octahedral Ni(II) metal ions bridged by the phenoxide oxygens of the sala-X ligands. Magnetic studies indicate that the magnetic Ni(II) centres are ferromagnetically coupled with the substituent group having only a minor impact on the magnitude of coupling. AC susceptibility studies show no evidence of single-molecule magnet behaviour. DFT calculations also support ferromagnetic coupling with smaller Ni-O-Ni angles leading to slightly larger coupling constants in line with previous studies. ☆ We dedicate this paper to Professor R. H. Holm who passed away on 15th February 2021. Dick was a pioneer in modern inorganic and bioinorganic chemistry with early interests in d-block Schiff Base chemistry.
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Submitted on : Tuesday, June 22, 2021 - 3:46:12 PM
Last modification on : Sunday, June 26, 2022 - 3:09:57 AM
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Supaporn Saechio, Rodolphe Clérac, Keith S Murray, Wasinee Phonsri, Eliseo Ruiz, et al.. Nickel(II) salicylaldiminates: Re-visiting a classic. Polyhedron, 2021, 205, pp.115321. ⟨10.1016/j.poly.2021.115321⟩. ⟨hal-03267666⟩



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