Hi everyone,
I am facing a peculiar problem with "genion". I have a system
with overall charge
0f +3.
I want genion to add enough ions to make the cocncentration 10 micromoles/litre.
When I give the command
genion -s em.tpr -o ions.gro -conc 0.00001 -pname NA+ -nname CL- -p topol.top ,
it gives the message
"No ions to add and no potential to calculate."
If I use the "-neutral" option with the "genion " command, it adds 3 CL- ions.
However it works perfectly fine when I specify the concentration to be 0.15
Moles/litre.
The number of ions added to the system matches with calculations done manually.
However I can't figure out what is the problem with the low concentration
command.
Any suggestion will be extremely heplful.
Thanks in advance
Sarbani
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