Illustrated Glossary of Organic Chemistry
Dihedral angle:
The angle between two planes, where each plane is defined by three atoms. In most common use, the angle between two
bonds
.
In this
Newman projection
the dihedral angle between the Cl-C and H-C
bonds
is 60
o
(they are
gauche
), whereas the dihedral angle between the two C-Cl
bonds
is 180
o
(they are
anti-periplanar
).
Related terms:
Bond angle
,
conformation
,
conformational isomer
,
conformer
,
barrier to rotation
,
torsional strain
,
steric strain
,
staggered conformation
,
eclipsed conformation
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