Stereochemistry Flashcards Preview

Chemistry > Stereochemistry > Flashcards

Flashcards in Stereochemistry Deck (16)
Loading flashcards...
1

chirality

the ability to exist in two non-superimposable mirror-image forms

2

entaniomers

a pair of non-superimposable mirror-image molc

3

sterioisomers

isomers that have the same connectivity of atoms but different spacial arrangements

4

asymmetric carbons

a carbon that has 4 different groups attached to it
aka chiral carbons

5

chiral center

an atom holding a set of groups in a spacial arrangement that is not superimposable on its own mirror image

6

stereocenter

any atom at which the interchange of two groups gives a stereoisomer

7

the 2^n rule

a molecule with n chiral centers can have a maximum of 2^n stereoisomers

8

absolute configuration

description of the spacial arrangement of the groups attached to a chiral center

9

R/S nomenclature convention

used to assign absolute configuration
uses the Cahn-Ingold-Prelog Priority system to prioritize groups attached to the chiral carbon

10

Optical activity

rotation of the plane of plane-polarized light

11

optically active

a molecule rotates the plane-polarized light

12

dextrorotatory enantiomer

an enantiomer that rotates plane-polarized light clockwise (+)

13

levorotatory enantiomer

an enantiomer that rotates the plan-polarized light counterclockwise (-)

14

Racemic mixture

equal amounts of (+) and (-) enantiomers

15

specific rotation

rotation induced by 1 g/ my of solution

16

meso compound

achiral compound containing chiral centers