This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Chapter 1: Resonance:- Stabilize structure by delocalizing electrons- Actual structure = hybrid of resonance structures- How to Draw Resonance Structures- If lone pairs, electrons, or formal charges-> check for resonance!- Dont break single bonds- Dont violate the octet rule (e.g., dont put 5 bonds on C)- Push electrons only to adjacent bonds/atoms- Overall charge stays the same- Push electrons in one direction (electron rich->electron poor) Ex:- Stability- More stable if:- No separation of charge(i.e., no formal charges)- Charges (+ or - ) on more EN atom Chapter 2: Nomenclature- Straight Chain Alkanes- Remember common names:- tert-butyl, sec-butyl, isobutyl, isopropyl- Substituents of substituents- Carbon attached to parent chain gets a numbering of 1 automatically- Example: (1-methylethyl), (2-methylpropyl)- Cycloalkanes- For two substituents, give lowest number to first alphabetical group- Example: 1-ethyl-3-methyl- For three or more, minimize numbers as much as possible...
View Full Document
- Spring '08