Valence Interconversion of Octahedral Nickel(II/III/IV) Centers.

Angew Chem Int Ed Engl

Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan.

Published: October 2017

AI Article Synopsis

  • A new trinuclear complex called [Ni{Rh(apt)}] was created featuring a nickel center in three oxidation states (+2, +3, +4).
  • The nickel center is stabilized by six thiolato donors from two redox-inert fac-[Rh(apt)] octahedral units.
  • The different oxidation states were thoroughly analyzed using techniques like single-crystal X-ray crystallography and various spectroscopic methods, revealing that conversions between states led to distinct changes in color, magnetism, and structural distortion (Jahn-Teller effect).

Article Abstract

Three oxidation states (+2, +3, +4) of an octahedral nickel center were stabilized in a newly prepared RhNiRh trinuclear complex, [Ni{Rh(apt) } ] (apt=3- aminopropanethiolate), in which the nickel center was bound by six thiolato donors sourced from two redox-inert fac-[Rh (apt) ] octahedral units. The three oxidation states of the octahedral nickel center were fully characterized by single-crystal X-ray crystallography, as well as spectroscopic, electrochemical, and magnetic measurements; all three were interconvertible, and the conversion was accompanied by changes in color, magnetism, and Jahn-Teller distortion.

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Source
http://dx.doi.org/10.1002/anie.201708169DOI Listing

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