2-Octyne, also known as methylpentylethyne 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 Electron pair bond, bonding electrons instead of the usual two in a covalent bond, covalent single bond. Triple bonds are stronger than the equivalent covalent bond, sin ...
at its second
carbon
Carbon () is a chemical element; it has chemical symbol, symbol C and atomic number 6. It is nonmetallic and tetravalence, tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 ...
(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 envi ...
is 137 °C.
The average
molar mass
In chemistry, the molar mass () (sometimes called molecular weight or formula weight, but see related quantities for usage) of a chemical substance ( element or compound) is defined as the ratio between the mass () and the amount of substance ...
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 Société Chimique de France'', 1997. Volume 134. (3&4) pp 349-355.]
References
{{DEFAULTSORT:Octyne, 2-
Alkynes