Cyclobutane

Cyclobutane is a cycloalkane organic compound with the formula (CH2)4, a colorless gas at room temperature. Cyclobutane is usually sold as a liquified gas (a gas that has been pressurized or frozen to be in a state that isn't natural). Variants of cyclobutane are called cyclobutanes. Cyclobutane has no uses in commerce or biology,[1] but compounds containing cyclobutane are important in biology and biotechnology.

Cyclobutane
Cyclobutane
Cyclobutane
Cyclobutane
Cyclobutane
Names
Preferred IUPAC name
Cyclobutane
Identifiers
3D model (JSmol)
Beilstein Reference 1900183
ChEBI
ChemSpider
ECHA InfoCard 100.005.468
EC Number
  • 206-014-5
Gmelin Reference 81684
PubChem CID
UNII
UN number 2601
CompTox Dashboard (EPA)
SMILES
  • C1CCC1
Properties
C4H8
Molar mass 56.107 g/mol
Appearance Colorless gas
Density 0.720 g/cm3
Melting point −91 °C (−132 °F; 182 K)
Boiling point 12.5 °C (54.5 °F; 285.6 K)
Hazards
NFPA 704

4
1
0
 
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

Structure

The carbon atoms within cyclobutane are at odd angles. Cyclobutane is unstable and will break at temperatures over about 500° celcius. Cyclobutane is connected to itself in a ladder-like structure. An example of this structure can be seen in in pentacycloanammoxic acid. This compound is a ladderane made up of five connected cyclobutane units.

References
  1. "Cyclobutane - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2022-03-29.
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