The
suffix -ene is used in
organic chemistry
Organic chemistry is a subdiscipline within chemistry involving the science, scientific study of the structure, properties, and reactions of organic compounds and organic matter, organic materials, i.e., matter in its various forms that contain ...
to form names of organic compounds where the -C=C- group has been attributed the highest priority according to the rules of
organic nomenclature
In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a method of naming organic compound, organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the ''No ...
.
Sometimes a number between
hyphen
The hyphen is a punctuation mark used to join words and to separate syllables of a single word. The use of hyphens is called hyphenation.
The hyphen is sometimes confused with dashes (en dash , em dash and others), which are wider, or with t ...
s is inserted before it to say that the
double bond is between that atom and the atom with the next number up. This suffix comes from the end of the word
ethylene, which is the simplest
alkene. The final "-e" disappears if it comes before by a suffix that starts with a
vowel
A vowel is a speech sound pronounced without any stricture in the vocal tract, forming the nucleus of a syllable. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness a ...
, e.g. "-enal", which is a compound that contains both a -C=C- bond and an
aldehyde functional group. If the other suffix starts with a
consonant
In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract, except for the h sound, which is pronounced without any stricture in the vocal tract. Examples are and pronou ...
or "y", the final "-e" remains, ''e.g.'' "-enediyne" (which has the "-ene" suffix and also the "
-yne" suffix, for a compound with a
double bond and two
triple bonds.)
A Greek number prefix before the "-ene" indicates how many double bonds there are in the compound, e.g.
butadiene.
The suffix "-ene" is also used in
inorganic chemistry to indicate a one-atom thick two-dimensional layer of atoms, as in
graphene,
silicene,
stanene,
borophene, xenzophene, and
germanene.
See also
*
IUPAC nomenclature of organic chemistry
In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the '' Nomenclature of O ...
References
ene
English suffixes
{{Organic-chem-stub