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A Bis(μ‐oxido)dinickel(III) Complex with a Triplet Ground State
Author(s) -
Morimoto Yuma,
Takagi Yusaku,
Saito Toru,
Ohta Takehiro,
Ogura Takashi,
Tohnai Norimitsu,
Nakano Motohiro,
Itoh Shinobu
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201802779
Subject(s) - electron paramagnetic resonance , reactivity (psychology) , chemistry , ground state , raman spectroscopy , nickel , crystallography , diamond , magnetic susceptibility , ferromagnetism , hydrogen , metal , photochemistry , nuclear magnetic resonance , condensed matter physics , atomic physics , physics , organic chemistry , medicine , alternative medicine , pathology , optics
A bis(μ‐oxido)dinickel(III) complex was synthesized and characterized by single crystal X‐ray diffraction, resonance Raman, and ESI‐mass measurements. Magnetic susceptibility measurements by SQUID and EPR spectroscopy reveal that the complex has a triplet ground state, which is unprecedented for high‐valent metal (M) complexes with [M 2 (μ‐O) 2 ] diamond core. DFT studies indicate ferromagnetic coupling of the nickel(III) centers. The complex exhibits hydrogen abstraction reactivity and oxygenation reactivity toward external substrates.