Stereochemistry definitions Flashcards

1
Q

stereoisomer

A
  • same molecular formula
  • same connectivity of the atoms
  • different arrangement in 3D space
  • cannot be turned into each other without breaking a covalent bond
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2
Q

enantiomer

A
  • type of stereoisomer
  • are NOT identical/ not superimposable
  • are mirror images
  • come in pairs
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3
Q

diastereomer

A
  • type of stereoisomer

- are NOT mirror images

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4
Q

chiral

A
  • an object or molecule that is NOT identical/ superimposable with its mirror image (its enantiomer)
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5
Q

achiral

A
  • an object or molecule that IS identical/ superimposable with its mirror image
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6
Q

cis stereoisomer

A
  • has identical groups on the SAME side of a ring or C=C
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7
Q

trans stereoisomer

A
  • has identical groups on the OPPOSITE side of a ring or C=C
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8
Q

chiral carbon

aka chirality center, stereogenic center

A
  • carbon with 4 single bonds to 4 different atoms/ groups
  • can never be a CH2 (methylene) or CH3 (methyl)
  • can never be involved in a multiple bond
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