Chap5chem12a

Chap5chem12a - Chap 5 Stereochemistry- A) constitutional...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chap 5 Stereochemistry- A) constitutional isomers- different atom-atom connectivity. Have the same molecular formula. C 5 H 12 B) Stereoisomers- same atom-atom connectivity but different orientation of atoms in space. C) Chiral = non-superimposable mirror images. achiral = not chiral Ex. Hands ax ax eq eq conformations constitutional
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 enantiomers = A pair of non-superimposable mirror images Chiral carbon atoms- usually bound to four different groups. enantiomers- Label the chiral centers- 1. One chiral center has an enatiomer. 2. Two chiral centers might be chiral. If it contains two or more chiral centers can have an internal a plain of symmetry. O H O H O H achiral achiral chiral O H H H HO Br C l Br O H O H O H * * * * plain of symetry chiral
Background image of page 2
3 Ex. 5-1 . Is 1,4- trans - dimethyl cyclohexane chiral? No. Plain of symmetry. D) R and S designation. Cahn-Ingold-Prelog convention. 1. Assign priority to each group by the first atom. High atomic numbers are given higher priority. 2. In ties go to the next atom. Ex. 5-2 . Assign priority to the functional groups. plain of symetry C H Br C l I C Br I H C l 2 3 1 C O H H 2 C Br C H 2 C H 2 CH 3 C H C H 3 H 3 C 1 2 3 4
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 3. Double and triple bonds treat as if attached to separate atoms. Ex
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

Chap5chem12a - Chap 5 Stereochemistry- A) constitutional...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online