Hexene

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In organic chemistry, hexene is a hydrocarbon with the chemical formula C6H12. The prefix "hex" is derived from the fact that there are 6 carbon atoms in the molecule, while the "-ene" suffix denotes that there is an alkene present—two carbon atoms are connected via a double bond. There are several isomers of hexene, [1] depending on the position and geometry of the double bond in the chain. One of the most common industrially useful isomers is 1-hexene, an alpha-olefin. Hexene is used as a comonomer in the production of polyethylene.

Contents

Isomers

The following is a partial list of hexenes.

Name Structural formula CAS Number Melting point [2]
(°C)		 Boiling point [2]
(°C)		 Density [2]
(g/cm3)		 Refractive index [2]
(589 nm)
1-hexene 1-hexene new.svg 592-41-6−139.7663.480.6685 (25 °C)1.3852 (25 °C)
(E)-2-hexene Trans-2-hexene.svg 4050-45-7−13367.90.6733 (25 °C)1.3936 (20 °C)
(Z)-2-hexene Cis-2-hexene.svg 7688-21-3−141.1168.80.6824 (25 °C)1.3979 (20 °C)
(E)-3-hexene Trans-3-hexene.svg 13269-52-8−115.467.10.6772 (20 °C)1.3943 (20 °C)
(Z)-3-hexene Cis-3-hexene.svg 7642-09-3−137.866.40.6778 (20 °C)1.3947 (20 °C)

There are a total of 13 different alkene isomers of hexene, excluding additional geometric (E/Z) and optical (R/S) isomers:

See also

References

  1. ↑ Hexene, Merriam-Webster Dictionary
  2. 1 2 3 4 "Chapter 3: Physical Constants of Organic Compounds". CRC Handbook (90th ed.). pp. 1–523.


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