Trapping of the putative 1,2-dinitrosoarene intermediate of benzofuroxan tautomerization by coordination at ruthenium and exploration of its redox non-innocence
Date of Issue2014
School of Physical and Mathematical Sciences
The reaction of a benzofuroxan with [Ru(aneS3)(dmso)Cl2] (aneS3 = 1,4,7-trithiacyclononane) and [Ru(bpy)2(CH3CN)2]2+ yields the ruthenium complexes [Ru(aneS3)(ON^NO)(Cl)]+ (1a–c) and [Ru(bpy)2(ON^NO)]n+ (n = 2: 2a and 2b; n = 1: 2a− and 2b−), respectively, containing neutral or monoanionic N,N′-coordinated 1,2-dinitrosoarenes (ON^NO). The oxidation states of the ON^NO ligands (0 for 1a–c, 2a and 2b; −1 for 2a− and 2b−) have been deduced through detailed structural, spectroscopic, and theoretical studies. In other words, not only does this work demonstrate the trapping of the putative 1,2-dinitrosoarene intermediate of benzofuroxan tautomerization by coordination to ruthenium, it also provides access to a new family of redox-active bidentate ligands.
© 2014 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Chemical Science, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/C4SC01185F].