The thermodynamic and kinetic stabilities of several novel substituted trio
xanes have been explored computationally. Our calculations show that concer
ted ring opening provides the most likely path for dissociation to the buil
ding block molecules: CO2, CH2O, and CCl2O. These studies indicate that gem
-dichlorotrioxane (C3H4O3Cl2, 1), tetrachlorotrioxane (C3H2O3Cl4, 7), and t
rioxanone (C3H4O4, 2) should be kinetically stable and are likely candidate
s for synthesis.