Pericyclic Arrays in the Solid State. Azooxide and Azodioxide Donor−Acceptor Complexes with Tetracyanoethylene J. Am. Chem. Soc. 1995, 117, 6617−6618

Interactions of Organic Nitroso Compounds with Metals

“…19a Several crystal structures of constrained cis-(RNO) 2 compounds containing a "cyclic" (R 2 )-link have been determined. [30][31][32] In these latter compounds, the N-N and N-O bond lengths fall in the ranges of 1.29-1.32 and 1.25-1.27 Å, respectively. Importantly, the increased N-O bond lengths relative to those of monomeric RNO compounds are consistent with a contribution of the dipolar azodioxy structure.…”