minor request regarding aromatic bonds

User 870ab5b546

09-10-2009 18:33:50

May I request that when aromatic bonds join atoms that are in a ring, e.g. in C1CcccC1, that the dashed bond should appear inside the ring, not outside?  See the attached figure.

ChemAxon 990acf0dec

10-10-2009 06:20:34

Hi Bob,


Sure. We are planning to improve both the aromatic bond and the double bond paintins. Hopefully we will have capacity for that in 5.4.


Best regards,


Akos

User 25d107bd42

10-10-2009 18:27:22

Hi Bob, I have a question here:


Why are these bonds "aromatic bonds" ?


I can only see an allyl-pi-system and the second question is: Anion, Kation or Radical ?


Regards, Hans-Ulrich

User 870ab5b546

11-10-2009 18:13:50

It is a pi-allyl system, but the bonds that one uses to draw it in MarvinSketch are called "aromatic" bonds for historical reasons.  


We draw a pi-allyl in MarvinSketch only in preparation for converting it to a multicenter attachment point and then attaching a metal to it.  The isolated pi-allyl in MarvinSketch does not represent a real chemical species, and there is no way to assign charge to it.