A “Side‐on” Superoxonickel Complex [LNi(O₂)] with a Square‐Planar Tetracoordinate Nickel(II) Center and Its Conversion into [LNi(μ‐OH)₂NiL]

Abstract

Radically mild: The first room-temperature isolable, structurally characterized superoxonickel(II) complex 1 with a square-planar tetracoordinate NiII center is capable of gentle oxygen-transfer reactions to form the proposed intermediate 2, which acts as a hydrogen scavenger and dimerizes to homovalent complex 3 with both square-planar (low-spin) and tetrahedral (high-spin) NiII centers. L=CH{C(Me)(2,6-iPr2C6H3N}2. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802234_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.