Re: [gmx-users] Concentration of Urea in urea solvation box

2008-09-05 Thread mon_sharma
Hello All, Thank you very much for your suggestions. I think I have understood it.. Thanks a lot.. :) Regards, Monika On Fri, 5 Sep 2008, Anil Kumar wrote: As Peter has said you have to maintain the ratio of water molecule with respect to urea to get the desired concentration. So, in your case

Re: [gmx-users] Concentration of Urea in urea solvation box

2008-09-04 Thread Anil Kumar
> *Sent:* Thu 9/4/2008 2:51 PM > *To:* gmx-users@gromacs.org > *Subject:* [gmx-users] Concentration of Urea in urea solvation box > > Hi All, > This is a trivial question. But I am quite puzzled about it, and I > really need someone's kind help. > > I want to prepare

RE: [gmx-users] Concentration of Urea in urea solvation box

2008-09-04 Thread Nagy, Peter I.
of [EMAIL PROTECTED] Sent: Thu 9/4/2008 2:51 PM To: gmx-users@gromacs.org Subject: [gmx-users] Concentration of Urea in urea solvation box Hi All, This is a trivial question. But I am quite puzzled about it, and I really need someone's kind help. I want to prepare 8M urea solution box

Re: [gmx-users] Concentration of Urea in urea solvation box

2008-09-04 Thread Matt Wyczalkowski
The following reference has a table with the number of water and urea molecules for a given molarity, at a given temperature: Stumpe and Grubmuller, J. Phys. Chem. B. 2007, 111, 6220-6228. Roughly, a 4.5:1 ratio of water:urea molecules will give you 8M urea. This varies somewhat with temperature

[gmx-users] Concentration of Urea in urea solvation box

2008-09-04 Thread mon_sharma
Hi All, This is a trivial question. But I am quite puzzled about it, and I really need someone's kind help. I want to prepare 8M urea solution box, for which I might need to know input as number of water molecules and of urea. Now my query is how to make sure of these exact number of molecule