Comparing the Electronic Structure and Hydride Atom Transfer Reactivities of Nickel(III) vs Cu(III) Complexes.

ABSTRACT: Ni^III (1-ox) and Cu^III (2-ox) species, supported by a bis-amidate-dioxime ligand scaffold, were synthesized via one-electron oxidation of Ni^II (1) and Cu^II (2) using ceric ammonium nitrate in methanol at -40 °C. These species were extensively characterized by various spectroscopic tools, including X-ray absorption spectroscopy. X-ray structural analysis revealed that Ni^II and Cu^II complexes adopt a similar geometry around the metal center, while the Cu^III complex exhibited significantly shorter metal-ligand bond distances in the solid state relative to Cu^II. X-ray absorption near-edge structure (XANES) studies showed an energy shift of 0.65 eV at normalized 0.5 absorption bet

SUBMITTER: Kaur S 

PROVIDER: S-EPMC12308396 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature