Oxane oxide: a tautomer of hydrogen peroxide.

If H₃N⁺-O^– is viable compared with its tautomer H₂N-OH when carrying water bridges, then why not try H₂O⁺-O^– vs HO-OH?

There are no examples to be found in crystal structures! The solvated structure of H₂O⁺-O^– is modified directly from that of H₃N⁺-O^– and the computed (ωB97XD/6-311++G(d,p)/SCRF=water) structure[1] is shown below. Noteworthy is that the hydrogen bonds at the O⁺ end are far stronger than those to at the O^– end.

The corresponding hydrated hydrogen peroxide is 16.3 kcal/mol lower in free energy; this compares favourably with the value for water itself and suggests that oxane oxide might also be capable of isolation inside a suitable hydrogen bond stabilising cavity.

References

1. Henry S Rzepa., "H20O11", 2016. http://dx.doi.org/10.14469/ch/192005