[AMBER] Epot value in Amber TI output

From: Eric Chen <eric.clyang521.gmail.com>
Date: Fri, 12 Jun 2020 13:24:20 -0400

Hi Amber Comunity,

I am using Amber20 TI ( PMEMD.cuda) to calculate benzene's solvation free
The command for the production run:

*pmemd.cuda -i ti.in <http://ti.in/> -c eq.rst7 -ref eq.rst7 -p ti.prmtop
-O -o ti001.out -inf ti001.info <http://ti001.info/> -e energy.en -r
ti001.rst7 -x ti001.nc <http://ti001.nc/> -l ti001.log*

In the generated energy.en file (attached as energy.PNG), does the
Epot value (Highlighted at line L6) include the interaction energy among
the "disappearing" atoms of benzene?

The reason why I ask it is I want to know in Amber, is it correct to
calculate the Enthalpy Change(dH) of benzene solvation process by: dH =
Epot (lambda=0, when benzene in water) - Epot (lambda=1, when benzene
disappeared) if I run this two lambda windows long enough(such as 100 ns).

I appreciate your help in advance!

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(image/png attachment: ti.PNG)

(image/png attachment: energy.PNG)

Received on Fri Jun 12 2020 - 10:30:02 PDT
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