Iceane

 ( Polycyclic Nonaromatic Hydrocarbons ) 

Iceane is a saturated polycyclic hydrocarbon with formula . It has a cage-like molecule 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 . The spatial arrangement of carbon atoms in iceane is the lonsdalite crystalline structure.

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.

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

• Adamantane
• Twistane
• Propellane
• Hexanitrohexaazaisowurtzitane

• Royal Society of Chemistry Journal
• Symmetry Through the Eyes of a Chemist, Magdolna Hargittai
• A Basis for Synthesis Design, Tse-Lok Ho
• Structures and Energies of Polycyclic Hydrocarbons, Joan E. Shields