Hydroxylation of N-Heterocycle Ligands Observed in Two Unusual Mixed-Valence CuI/CuII Complexes

Structural evidence for the Gillard mechanism of covalent hydrates is provided by two mixed-valence CuI/CuII complexes containing 2,2′-bipyridine (see picture) or 1,10-phenanthroline ligands, in which a hydroxy group is added to a carbon atom adjacent to a nitrogen atom. These complexes are synthesized by hydrothermal treatment of Cu(NO3)2, the respective N,N ligand, and terephthalic acid. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2002/z17862_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.