2-Octyne, also known as methylpentylethin and oct-2-yne,
is a type of
alkyne
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Acetylene
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Propyne
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1-Butyne
In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond. The simplest acyclic alkynes with only one triple bond and n ...
with a
triple bond
A triple bond in chemistry is a chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond. Triple bonds are stronger than the equivalent single bonds or double bonds, with a bond order o ...
at its second
carbon
Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent
In chemistry, the valence (US spelling) or valency (British spelling) of an element is the measure of its combining capacity with o ...
(the '2-' indicates the location of the triple bond in the chain). Its formula is C
8H
14.
Its density at 25 °C and otherwise stable conditions is 0.759 g/ml.
The
boiling point
The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
The boiling point of a liquid varies depending upon the surrounding envir ...
is 137 °C.
The average
molar mass
In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance which is the number of moles in that sample, measured in moles. The molar mass is a bulk, not molecular, p ...
is 110.20 g/mol.
It is formed by isomerization of
1-octyne catalyzed by a Yb
II complex.
[Makioka, Yoshikazu; Taniguchi, Yuki; Kitamura, Tsugio; Fujiwara, Yuzo; Saiki, Akira; Takaki, Ken. Isomerization of terminal alkynes catalyzed by ytterbium(II)-aromatic imine complexes. ''Bulletin de la Societe Chimique de France'', 1997. Volume 134. (3&4) pp 349-355.]
References
{{DEFAULTSORT:Octyne, 2-
Alkynes