prismane
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The prismanes are a class of hydrocarbon compounds consisting of prism-like polyhedra of various numbers of sides on the polygonal base. Chemically, it is a series of fused cyclobutane rings (a ladderane, with all-cis/all-syn geometry) that wraps around to join its ends and form a band, with cycloalkane edges. Their chemical formula is (C2H2)n, where n is the number of cyclobutane sides (the size of the cycloalkane base), and that number also forms the basis for a system of nomenclature within this class. The first few chemicals in this class are:
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4 sectionsContents
- Nonconvex prismanes
- Polyprismanes
- Related structures
- References
The prismanes are a class of hydrocarbon compounds consisting of prism-like polyhedra of various numbers of sides on the polygonal base. Chemically, it is a series of fused cyclobutane rings (a ladderane, with all-cis/all-syn geometry) that wraps around to join its ends and form a band, with cycloalkane edges. Their chemical formula is (C2H2)n, where n is the number of cyclobutane sides (the size of the cycloalkane base), and that number also forms the basis for a system of nomenclature within this class. The first few chemicals in this class are:
{|class="wikitable" |+ !Structures !80px !80px !80px !80px |- !Common name |Prismane[3]PrismaneTriprismane |Cubane (preferred)[4]PrismaneTetraprismane | [5]PrismanePentaprismane | [6]PrismaneHexaprismane |- !Chemical formula | (C2H2)3C6H6 | (C2H2)4C8H8 | (C2H2)5C10H10 | (C2H2)6C12H12 |- !IUPAC nomenclature |tetracyclo[2.2.0.02,6.03,5]hexane |pentacyclo[4.2.0.02,5.03,8.04,7]octane |hexacyclo[4.4.0.02,5.03,9.04,8.07,10]decane |heptacyclo[6.4.0.02,7.03,6.04,11.05,10.09,12]dodecane |- !3D models (PubChem) |triprismane |cubane |pentaprismane |hexaprismane |}