anthracene and phenanthrene?

Question

hey guys! could you please help me about the aromacity of
compounds? and whats the difference between anthracene
and phenanthrene, the 2 simplest compound? please give me
facts about them..

Answer 1

both compounds are aromatics based upon the conjugation scheme of the electrons. while both anthracene and phenanthrene contain the same number of carbons, the arrangement of the rings are different. (look at these pictures:
http://en.wikipedia.org/wiki/Phenanthrene and http://en.wikipedia.org/wiki/Anthracene )

Answer 2

Anthracene =3 benzene rings in a row.---Phenanthrene one benzene ring riding over the second benzene ring-I do not know how to draw.

Answer 3

they're each formed of 3 benzene rings differing in their connection points. anthracene looks like a sraight line of rings and phenanthrene appears more as a u shape. I can't paste the structures in here. And they're not the simplest benzene rings systems. naphthalene has only 2 benzene rings.

Answer 4

dude just keep this in mind phenantrene is not linear but antrene is linear . they have the same no. of pi bond , carbon atoms , etc. but the only difference is phenantrene is more stable than antracene as there c4 and c5 atoms have H bonding due to clars rule