Physical measurements point out that the imply variety of items per molecule is about 5-6, depending on the formation temperature. Many other oxides are known today, vapesystem most of them synthesized because the 1960s. A few of these new oxides are stable at room temperature. C4O6, dioxane tetraketone or vapemischen dimeric oxalic anhydride (Strazzolini and others, 1998); stable in Et2O at −30 °C, decomposes at 0 °C. Verter, dampferkaufen H. S.; Potter, H.; Dominic, R. (1968). "A new carbon oxide synthesis of tetrahydroxybenzoquinone bisoxalate".

Verter, H.S.; Dominic, R. (1967). "A new carbon oxide synthesis of hexahydroxybenzene tris oxalate". Sauer, vapekaufenonline Jürgen; Schröder, Barbara; Wiemer, Richard (1967). "Eine Studie der Diels-Alder-Reaktion, VI. Kinetischer Nachweis des Moleküls C6O6 (Dianhydrid der Äthylentetracarbonsäure)". Schröder, Detlef; Heinemann, Christoph; Schwarz, Helmut; Harvey, Jeremy N.; Dua, vapemischen Suresh; Blanksby, liquidmischen Stephen J.; Bowie, vapemischen John H.

(1998). "Ethylenedione: An Intrinsically Short-Lived Molecule". Cohen, Sidney; Lacher, John R.; Park, Joseph D. (1959). "Diketocyclobutanediol". Schleyer, P. v. R.; Najafian, K.; Kiran, B.; Jiao, vapehardware H. (2000). "Are Oxocarbon Dianions Aromatic?". DeMore W. B.; Jacobsen C. W. (1969). "Formation of carbon trioxide within the photolysis of ozone in liquid carbon dioxide". Wyrwas, Richard B.; Jarrold, Caroline Chick (2006). "Production of C6O6-from Oligomerization of CO on Molybdenum Anions".

Heymann, Dieter; Weisman, R. Bruce (2006). "Fullerene oxides and ozonides" (PDF). Evans, W. J.; Lipp, M. J.; Yoo, C.-S.; Cynn, H.; Herberg, J.