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.

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 592-41-6 −139.76 63.48 0.6685 (25 °C) 1.3852 (25 °C)
(E)-2-hexene 4050-45-7 −133 67.9 0.6733 (25 °C) 1.3936 (20 °C)
(Z)-2-hexene 7688-21-3 −141.11 68.8 0.6824 (25 °C) 1.3979 (20 °C)
(E)-3-hexene 13269-52-8 −115.4 67.1 0.6772 (20 °C) 1.3943 (20 °C)
(Z)-3-hexene 7642-09-3 −137.8 66.4 0.6778 (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. ^ a b c d "Chapter 3: Physical Constants of Organic Compounds". CRC Handbook (90th ed.). pp. 1–523.


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