Question

3. Please indicate how many pi electrons each of the following compounds have and whether they are aromatic, non-aromatic, or anti-aromatic. (8 points) H

Answer 1

Condition's of Anomalicity را) of (1) Lot) There should be complete delocalisation Electron compound should be planer compound whould have (4n+2) 7 electrons where n=9,1,2 ....** j.ey hoving er 2,6,10,14....... Structure 1 Configuration of 15² Ź: N har 2 28² 2p² 3 bonds are formed & hence they have one lone pain. All atoms are sp2 hence blan en - H N z -1 2:2 GU - G H H H H 4 N No. of Electron's in de localination 6 Putting N=1 in (4042) 1 = (4x1+2) = following Aromali = 6 ñ é luckel role. Hence Hence H

are All Atom's in Ring sp2 hence planer Telocalisation in 6 hence following nuckel No. of é in mole Hence Aromatic go complete Delocalitation in pomible. All atoma are spe hence planer No. é involved in delocalis alion 4 hockel Mole of So not obeying So the structure in Antiaromatic. The compounds which whow complete delocalisation out do not follow huckel rule are antiaromatic. No. of e- involved in delocalivalion in 8 hence not following hockel mule & hence Antiaromalie