NickelIII
Nickel(III), or Ni(III), refers to nickel in the +3 oxidation state. It is much less common than Ni(II) and is often short-lived in solution, stabilized only by particular ligands or solid-state environments. Ni(III) species are more oxidizing than Ni(II) and can act as one-electron oxidants in various chemical processes. In many systems, Ni(III) forms are transient and prone to disproportionation, such as 2 Ni(III) → Ni(II) + Ni(IV), or reduction back to Ni(II).
Electronic structure and coordination chemistry: Nickel(III) has a d7 electron configuration. In octahedral or similar coordination
Formation, stability, and materials: Ni(III) species are typically generated by chemical or electrochemical oxidation of Ni(II)
Applications and context: Ni(III) intermediates appear in catalytic cycles for cross-coupling and oxidation reactions, and in