Illustrated Glossary of Organic Chemistry
Cumul
ene
:
A
molecule
with two or more consecutive (i.e., share an atom)
double bonds
.
Representative Cumul
enes
Allene
2,3-
Butadiene
Carbon dioxide
Ketene
Phenyl
isocyanate
Related terms:
Alkene
,
alkyne
,
carbonyl group
,
imine
,
conjugation
,
pi bond
,
sp
orbital
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