A square-planar nickel(II) monoradical complex with a bis(salicylidene)diamine ligandBenisvy, L., Kannappan, R., Song, Y.-F., Milikisyants, S., Huber, M., Mutikainen, I., Turpeinen, U., Gamez, P., Bernasconi, L., Baerends, E. J., Hartl, F. and Reedijk, J. (2007) A square-planar nickel(II) monoradical complex with a bis(salicylidene)diamine ligand. European Journal of Inorganic Chemistry, 2007 (5). pp. 637-642. ISSN 1434-1948 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1002/ejic.200601015 Abstract/SummaryThe new square-planar Ni-II-N2O2 complex [Ni(L-Me)] (1(Me)), where L-Me, stands for the dianionic phenolato form of N,N'bis(3,5-di-tert-butyl-salicylidene)-4,5-dimethyl-1,2-phenyl- enediamine ((LH2)-L-Me), has been synthesised and fully characterised. X-ray crystallography was also used for the characterisation. The electrochemical one-electron oxidation of 1(Me) produces the thermally stable (within the temperature range 10-295 K) cationic species (1(Me))(+). The UV/Vis and X-band EPR experimental data, supported by DFT calculations, indicate that (1(Me))(+), is best described as a Ni-II monoradical complex and, thus, does NOT exist in a Ni-III ground state, in contrast to its demethylated counterpart [Ni(L-H)](+) (1(H))(+) below 170 K.
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