On Wed, Mar 23,
2011 at 1:58 PM, Deskins, N Aaron nadeskins,
WPI.EDU <owner-chemistry|-|ccl.net> wrote:
Sent to CCL by: "Deskins, N Aaron" [nadeskins*o*WPI.EDU]
Hello all,
ÂI'm trying to draw (2-D) some aromatic compounds but can't seem
to get them right. For instance, all the pictures of coronene I've seen show
12 C=C bonds (see for example Âen.wikipedia.org/wiki/File:Coronene_structure.png). But I
tried making coronene in ChemSketch but it puts draws a structure with 10-11 C=C
bonds depending on the order I put the benzene rings together. Same problem with
pyrene. My drawings show 7 C=C bonds, while I believe it should have 8.
ÂMore importantly, I'd like to figure out how many C=C bonds different
large aromatic compounds have for a series of isodesmic reactions I'm
interested in.
ÂAny ideas?
ÂThank you,
N. Aaron Deskins
Assistant Professor
Chemical Engineering Department
Worcester Polytechnic Institute
http://users.wpi.edu/~nadeskins
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