Re: [gmx-users] Implicit solvation: nonpolar term?

2013-12-20 Thread Justin Lemkul
On 12/19/13 7:33 PM, Robert Darkins wrote: On 19/12/13 23:31, Justin Lemkul wrote: On 12/19/13 6:14 PM, rdwducl wrote: Thanks for the reply Justin but I'm confused. Why must the atoms be bonded? Ultimately I plan to model micellisation whereby surfactants, which only interact with each ot

Re: [gmx-users] Implicit solvation: nonpolar term?

2013-12-19 Thread Robert Darkins
On 19/12/13 23:31, Justin Lemkul wrote: On 12/19/13 6:14 PM, rdwducl wrote: Thanks for the reply Justin but I'm confused. Why must the atoms be bonded? Ultimately I plan to model micellisation whereby surfactants, which only interact with each other via non-bonded terms, are driven to aggr

Re: [gmx-users] Implicit solvation: nonpolar term?

2013-12-19 Thread Justin Lemkul
On 12/19/13 6:14 PM, rdwducl wrote: Thanks for the reply Justin but I'm confused. Why must the atoms be bonded? Ultimately I plan to model micellisation whereby surfactants, which only interact with each other via non-bonded terms, are driven to aggregate by this nonpolar term... I'm making

Re: [gmx-users] Implicit solvation: nonpolar term?

2013-12-19 Thread rdwducl
Thanks for the reply Justin but I'm confused. Why must the atoms be bonded? Ultimately I plan to model micellisation whereby surfactants, which only interact with each other via non-bonded terms, are driven to aggregate by this nonpolar term... -- View this message in context: http://gromacs.50

Re: [gmx-users] Implicit solvation: nonpolar term?

2013-12-19 Thread Justin Lemkul
On 12/19/13 5:47 PM, rdwducl wrote: Hello, I am using GBSA/OBC implicit solvation with an ACE-type approximation for the nonpolar term. Having looked at the GROMACS code, it would appear to be using the following form for the nonpolar free energy: sum_i 4*pi*tension*(R_i + R_s)^2 * (R_i/b_i)^

[gmx-users] Implicit solvation: nonpolar term?

2013-12-19 Thread rdwducl
Hello, I am using GBSA/OBC implicit solvation with an ACE-type approximation for the nonpolar term. Having looked at the GROMACS code, it would appear to be using the following form for the nonpolar free energy: sum_i 4*pi*tension*(R_i + R_s)^2 * (R_i/b_i)^6 where R_i and R_s are constants (vdw