Organic chem -- Huckel's rule?

[CSade469]

Can someone explain to me what the n stands for in Huckel's rule. The equation to determine if a compound aromatic. The equation is (4n + 2)pi electron. I know n is a positive interger, but looking at the compound what are we counting?


Thanks

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[tinman831]

Hunkels rule is 4n+2 = X

where X is the number of pi electrons + lone pair electrons (only IF the pair is arranged so that it is oriented perpendicular to the plane of the ring)

where n is a positive integer.


If n ends up to be an integer, then it is aromatic.

 

[CSade469]

Hunkels rule is 4n+2 = X

where X is the number of pi electrons + lone pair electrons (only IF the pair is arranged so that it is oriented perpendicular to the plane of the ring)

where n is a positive integer.


If n ends up to be an integer, then it is aromatic.

Hey thanks!!

 

[CSade469]

Hunkels rule is 4n+2 = X

where X is the number of pi electrons + lone pair electrons (only IF the pair is arranged so that it is oriented perpendicular to the plane of the ring)

where n is a positive integer.


If n ends up to be an integer, then it is aromatic.

Hey thanks!!