McMurry (Kap.2,6)

Question 1

When drawing resonance structures, which steps can you take?

Answer 1

1. From lonepair to a doube bond.
2. From a double bond to a lone pair.
3. The three atom grouping trick, where if you have three atoms, and between two atoms is a double bond, and the other is a single bond, the double bond can alternate).

(the lone pair or radical on that atom also alternate to the other atom).

Question 2

Skal netto ladningen for alle resonance former være det samme?

Answer 2

Summen for alle resonance former (ladningen) skal være det samme for alle former. Hvis den ene resonance form har en (-) ladning, skal den anden ligeledes havde det også.