Iceane

Iceane is a saturated polycyclic hydrocarbon with formula C12H18. It has a cage-like molecular structure, whose carbon skeleton can be viewed as three fused cyclohexane rings in the boat conformation; or as two such rings in the chair conformation, connected by three parallel (axial) bonds. The spatial arrangement of carbon atoms in Iceane is the lonsdalite crystalline structure.

Iceane
Names
IUPAC name
Tetracyclo[5.3.1.12,6.04,9]dodecane
Other names
Wurtzitane
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C12H18/c1-7-2-11-3-8(1)10-4-9(7)5-12(11)6-10/h7-12H,1-6H2/t7-,8+,9+,10-,11-,12+ ☒N
    Key: KZNNISMAUNEBPT-KUDAMMAASA-N ☒N
  • InChI=1/C12H18/c1-7-2-11-3-8(1)10-4-9(7)5-12(11)6-10/h7-12H,1-6H2/t7-,8+,9+,10-,11-,12+
    Key: KZNNISMAUNEBPT-KUDAMMAABM
  • C1C2CC3CC1C4CC2CC3C4
Properties
C12H18
Molar mass 163.56 g/mol
Structure
D3h
0 D
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

The name "iceane" was proposed by the chemist Louis Fieser about a decade before the compound was first prepared. He was carrying out studies on the arrangement of water molecules in ice, when it occurred to him that there could exist a stable hydrocarbon with the above structure.[1][2]

It is also referred to as wurtzitane,[3] due to its similarity to the wurtzite crystal structure;[4] however, the name "iceane" has precedence.

See also

References
  1. Fieser, L. F. (1965). "Extensions in the use of plastic tetrahedral models". J. Chem. Educ. 42 (8): 408–412. doi:10.1021/ed042p408.
  2. Hargittai, M.; Hargittai, I. (2013). "Polyhedral Molecular Geometries". In Senechal, M. (ed.). Shaping Space: Exploring Polyhedra in Nature, Art, and the Geometrical Imagination. Springer Science & Business Media. pp. 153–170, 299. ISBN 9780387927145.
  3. Tobler, H.; Klaus, R. O.; Ganter, C. (1975). "Wurtzitan (Tetracyclo[5.3.1.12,6.04,9]dodecan)". Helv. Chim. Acta. 58 (5): 1455–1464. doi:10.1002/hlca.19750580522.
  4. Hamon, D. P. G.; Taylor, G. F. (1976). "A synthesis of tetracyclo[5,3,1,12,6,04,9]dodecane (iceane)". Aust. J. Chem. 29 (8): 1721–1734. doi:10.1071/CH9761721.
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