Dear Elaine, first of all thanks for the reply. I apologize for the question asked, but in fact what I needed was just the software Chimera. Thanks again for Your patience and courtesy. Best Regards, Giovanni -- Giovanni Ortosecco Pharmaceutical Chemist Institute of Biostructures and Bioimaging National Research Council Naples - Italy Posted by: Ubuntu 13.04 Raring Ringtail http://www.ubuntu.com/about/ Use free software! Il 09/07/2013 17:42, Elaine Meng ha scritto:

Dear Giovanni, This list is for questions related to Chimera. Sorry, Chimera does not have chemical diagram sketching. The most similar thing is that you can get a diagram by entering a SMILES string using "Structure Diagram" (in menu under Tools.. Utilities). <http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/diagram/diagram.html>

Maybe you could try asking your question in a more general forum such as the Computational Chemistry List, CCL.net Regards, Elaine ---------- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco

On Jul 9, 2013, at 3:07 AM, "giovanni.ortosecco@libero.it" <giovanni.ortosecco@libero.it> wrote:

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Dear List, kindly would like to know if there is an open-source software for advanced molecular modeling for use with Linux (Ubuntu, CentOS, Debian) along the lines of ChemDraw or ChemSketch. Thanks for Your attention. Best Regards, Giovanni Ortosecco