2006-07-20 05:43:19 · 4 answers · asked by vivek m 1 in Science & Mathematics ➔ Chemistry
There are *two* parts to Huckel's rule!
RULE: a ring of covalently bonded atoms is "aromatic" if:
1) it has 4n+2 pi electrons around the ring, AND
2) it is planar!
The point of checking for this is that aromatic rings are unusually stable. Therefore reaction pathways that create these are energetically favored.
2006-07-20 08:13:27 · answer #1 · answered by Aaron 3 · 1⤊ 1⤋
Accd. to the Huckel's rule, if in a cyclic ring, the total no. of delocalised electrons is (4n+2) where n is any +ve integer, then the compound is aromatic which will lend extra stability to the ring.
2006-07-20 06:04:56 · answer #2 · answered by achin_agarwal 2 · 0⤊ 0⤋
huckel's rule means for to be aromatic a compound needs 4n+2 electrons. being aromatic gives a bunch of stability to the molecule. either a molecule is aromatic or its not. antiaromatic means something completely different
2006-07-20 06:32:27 · answer #3 · answered by shiara_blade 6 · 0⤊ 0⤋
Benzenoid And Non-benzenoid Compounds
2017-02-27 08:54:40 · answer #4 · answered by scheidt 4 · 0⤊ 0⤋