The only software I am aware of that can do this "out of the box" is Nanotube Modeler: http://jcrystal.com/products/wincnt/ It is a paid product full of less than obvious bugs, but for the most part it works. The free demo will let you see the structures it generates, but you won't be able to export anything.
Alex On Thu, May 14, 2015 at 10:35 PM, saeed poorasad <s_poora...@yahoo.com> wrote: > Dear Gromacs users , > > Greetings .I am looking for XYZ or PDB file of Carbon nanotube ' > Y-junction' . > I will be grateful if you can let me know how i can find or make it . > Thanks in advance .Best ,Saeed. > > > -- > Gromacs Users mailing list > > * Please search the archive at > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.