Dioxetane
= Dioxetane
{title2=$\mathrm{C_2H_4O_2}$}
A four-membered peroxide ring containing two adjacent <oxygen> atoms and two <carbon> atoms. The parent 1,2-dioxetane has formula $\mathrm{C_2H_4O_2}$; its <ground state> is normally described as a closed-shell singlet.