Représentation molecules organiques Flashcards

1
Q

-CH3

A

-Met

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2
Q

-C2H5

A

-Et

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3
Q

-C3H7

A

-propyle

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4
Q

-C6H5

A

-Ph

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5
Q

CRAM: forme en U

A

éclipsée

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6
Q

CRAM: forme en «zig-zag»

A

décalée

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7
Q

dessiner CH3-CH3 selon newman decalé+éclipsé

A

cf cours

representation avec le rond

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8
Q
Newman:
-horizontale: 
avant? arriere? dans le plan? 
-verticale en fin de chaine: 
avant? arriere? dans le plan? 
-verticale en milieu de chaine: 
avant? arriere? dans le plan? 
-que met-on a la verticale?
-que met-on en haut?
A
  • horizontale: a l’avant
  • verticale fin de chaine: a l’arriere
  • verticale milieu chaine: dans le plan
  • chaine la plus longue: verticale
  • le carbone le + oxydé
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9
Q

forme limite, pas la réalité

A

mésomere

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10
Q

liaison simple

A

sigma

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11
Q

liaison double

A

sigma + pi

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12
Q

triple liaison

A

sigma + 2 pi

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