Systems containing Two Oxygen Atoms

Stanovnik, M. Tisler, J. Bradac, B. Budic, B. Koren, and B. Mozetic-Rescic, Heterocycles, 1979, 12,457. 

Weak emission of light has been observed in the thermal decomposition of cw-1,2-cyclobutylene dinitrite. Since this reaction possibly proceeds through the same type of biradical as would be involved in stepwise decomposition of dioxetans, the difference between this case and the decomposition of the analogous dioxetan has been tentatively suggested as support for a concerted mechanism for the latter. For simple unsymmetrical dioxetans, undergoing 

Hakushi, and N. J.Turro, Kokagaku ToronkaiKoen Yoshishu, 1979,150 Chem. Abstr., 

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