Hello Diana, You may try using the -conc flag in genion program to specify your salt concentration, along with -nname and -pname flags.
Best wishes, Saumyak On 16 May 2017 at 10:18, diana p <diana6...@gmail.com> wrote: > Dear gmx users, > I want to simulate 0.6M CaCL2 aqueous solution. To add the ions I use > genion command and add 720 CL and 360 Ca ions respectively to the system of > pure 12568 water molecules.But on running the command genion I get error > message: > > Program genion, VERSION 4.6.5 > Source code file: /build/buildd/gromacs-4.6.5/src/tools/gmx_genion.c, > line: > 89 > Fatal error: > No more replaceable solvent! > > How should I add ions in the system.I would be more than pleased if someone > could guid me. > Thank You in advance > -- > 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. > -- ================================ *Saumyak Mukherjee* Junior Research Fellow Prof. Biman Bagchi's Group Solid State and Structural Chemistry Unit Indian Institute of Science Bangalore - 560012 Mob : 8017292426 Alternative e-mail : saumyakmukher...@gmail.com smukher...@sscu.iisc.ernet.in ================================ -- 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.