• Thumbnail for Pentacarbon dioxide
    Pentacarbon dioxide, officially penta-1,2,3,4-tetraene-1,5-dione, is an oxide of carbon (an oxocarbon) with formula C5O2 or O=C=C=C=C=C=O. The compound...
    3 KB (158 words) - 19:58, 20 June 2024
  • Thumbnail for Carbon suboxide
    of linear oxocarbons O=Cn=O, which also includes carbon dioxide (CO2) and pentacarbon dioxide (C5O2). Although if carefully purified it can exist at room...
    16 KB (1,641 words) - 21:56, 7 February 2024
  • Thumbnail for Oxocarbon
    C4O2 or O=C=C=C=C=O, tetracarbon dioxide or 1,2,3-Butatriene-1,4-dione C5O2 or O=C=C=C=C=C=O, pentacarbon dioxide, stable in solution at room temp. and...
    34 KB (3,238 words) - 20:46, 20 June 2024
  • Thumbnail for Tetracarbon dioxide
    dioxides O(=C)n=O, that includes carbon dioxide CO2 or O=C=O, ethylene dione C2O2 or O=C=C=O, carbon suboxide C3O2 or O=C=C=C=O, pentacarbon dioxide C5O2...
    4 KB (333 words) - 14:30, 11 August 2023
  • Thumbnail for Phloroglucinol
    isovaleroylnitrile in the presence of a zinc chloride catalyst. Pentacarbon dioxide, described in 1988 by Günter Maier and others, can be obtained by...
    21 KB (1,983 words) - 03:34, 10 December 2024