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10 Cards in this Set
- Front
- Back
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A ______________ is defined as an atom at which the interchange of two groups produces a stereoisomer.
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Stereocenter or stereogenic atom.
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_________ is any factor that destabilizes a molecule by forcing it to deviate from its optimum bonding geometry.
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Strain.
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What is "steric strain"?
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When a molecule's structure forces nonbonded atoms too close together, damaging stability.
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A ______________ is defined as an atom at which the interchange of two groups produces a stereoisomer.
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Stereocenter or stereogenic atom.
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_________ is any factor that destabilizes a molecule by forcing it to deviate from its optimum bonding geometry.
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Strain.
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What is "steric strain"?
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When a molecule's structure forces nonbonded atoms too close together, damaging stability.
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The destabilization caused by eclipsed bonds is called _____________ .
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Torsional strain
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What is "torsional strain"?
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Destabilization resulting from eclipsed bonds.
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True or False: rotation about most single bonds is common at room temperature.
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True. Rotation is common, and happens very quickly (this is known as "free rotation")
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True or False: Distinguishing between isomers among molecules that are subject to "free rotation" is very important.
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False. Molecules that undergo "free rotation" are cycling through available isomers very quickly, so identifying the conformation is not important (in fact, it may not be possible).
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