In this chapter, you learned that a molecule that possesses a plane of symmetry must be achiral. It is possible, however, for a molecule to be achiral without possessing a plane of symmetry, such as in cases where the molecule possesses a point of symmetry. If a point of symmetry exists for a molecule, then each atom can be reflected through that point (rather than a plane) to arrive at an identical atom. This molecule, for example, is achiral, yet it possesses no plane of symmetry. Br CI CI Br (a) Convince yourself that the molecule has no plane of symmetry. (b) Draw the molecule's mirror image and show that the molecule and its mirror image are superimposable. (c) Where is the point of symmetry located?

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL3: Carbon (13c) Nmr Spectroscopy
Section: Chapter Questions
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In this chapter, you learned that a molecule that possesses a plane of symmetry must be achiral. It is possible, however,
for a molecule to be achiral without possessing a plane of symmetry, such as in cases where the molecule possesses a
point of symmetry. If a point of symmetry exists for a molecule, then each atom can be reflected through that point (rather
than a plane) to arrive at an identical atom. This molecule, for example, is achiral, yet it possesses no plane of symmetry.
Br
CI
CI
Br
(a) Convince yourself that the molecule has no plane of symmetry.
(b) Draw the molecule's mirror image and show that the molecule and its mirror image are superimposable.
(c) Where is the point of symmetry located?
Transcribed Image Text:In this chapter, you learned that a molecule that possesses a plane of symmetry must be achiral. It is possible, however, for a molecule to be achiral without possessing a plane of symmetry, such as in cases where the molecule possesses a point of symmetry. If a point of symmetry exists for a molecule, then each atom can be reflected through that point (rather than a plane) to arrive at an identical atom. This molecule, for example, is achiral, yet it possesses no plane of symmetry. Br CI CI Br (a) Convince yourself that the molecule has no plane of symmetry. (b) Draw the molecule's mirror image and show that the molecule and its mirror image are superimposable. (c) Where is the point of symmetry located?
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