HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Nickel precursors based on diamagnetic and paramagnetic di(imine)pyridine ligands for magnetic materials: Synthesis, X-ray structures and magnetic studies

Abstract : Structural characterization and spectroscopic studies of the (2-acetyl-6-(1-TEMPO-imino)ethyl)pyridine (pat) and the 2,6-bis(1-TEMPO-imino)ethyl)pyridine (pbtMe) ligands are presented. Their electrochemical properties are also discussed. Two new nickel complexes, [NiII(dip)(CH3CN)(H2O)2](BF4)2 (1) (dip = 2,6-(di-iminepyridine)) and [NiII(pbtMe)(CH3CN)3](BF4)2 (2) have been characterized by X-ray diffraction. The reaction of 1 with the tetraethyl ammonium pentacyanopropenide salt (Et4N)(pcp) affords the new compound [NiII(pcp)(dip)(CH3CN)](pcp) (3) for which X-ray diffraction studies evidence an usual bridging μ2 coordination mode for the pentacyanopropenide anion, leading to chains running along the [1 0 0] direction with Ni⋯Ni intra-chains distances of 10.653 Å. Magnetic measurements for 3 indicate that it presents antiferromagnetic interactions that can be reproduced with a S = 1 regular chain model with g = 2.115(1) and Jchain = −0.589(5) cm−1.
Complete list of metadata

https://hal.univ-brest.fr/hal-01774840
Contributor : Nicolas Renard Connect in order to contact the contributor
Submitted on : Tuesday, April 24, 2018 - 9:19:23 AM
Last modification on : Wednesday, November 3, 2021 - 6:59:15 AM

Identifiers

Collections

Citation

Nathalie Cosquer, Emeric Lefebvre, Bénédicte Douziech, Sylvie Houille, François Michaud, et al.. Nickel precursors based on diamagnetic and paramagnetic di(imine)pyridine ligands for magnetic materials: Synthesis, X-ray structures and magnetic studies. Inorganica Chimica Acta Reviews, Elsevier, 2018, 479, pp.1 - 9. ⟨10.1016/j.ica.2018.04.026⟩. ⟨hal-01774840⟩

Share

Metrics

Record views

89