From: francesco oteri (francesco.oteri_at_gmail.com)
Date: Mon Apr 15 2013 - 01:54:48 CDT

Hi Josh,
I guess CNT stands for Carbon NanoTube

Francesco

2013/4/15 Anurag Sharma <Anurag.Sharma_at_my.ndsu.edu>

> Thanks for the reply josh. Actually it is not just a specific CNT. I was
> trying with different n,m and in each case I have a problem with impropers.
> I tried addimpropers but did not work. The no of atoms are fairly large so
> I was wondering is there any command which can work here.
>
> Regards
>
> Anurag
>
> Sent from my iPhone
>
> On Apr 14, 2013, at 5:44 PM, "Josh Vermaas" <vermaas2_at_illinois.edu> wrote:
>
> > Knowing absolutely nothing about what CNT is, and seeing that you are
> > using topotools, couldn't you just add them in manually? topo
> > addimproper is a command that exists, and would add impropers if you
> > should desire them.
> > -Josh
> >
> > On 04/14/2013 04:30 PM, Anurag Sharma wrote:
> >> Hi,
> >>
> >> I have build a CNT using VMD. I am able to construct psf file using
> topo tools which has bonds, angles and dihedrals. But I am getting 0
> impropers every time. Can somebody tell me how to deal with this problem.
> >>
> >> Thank you
> >>
> >> Anurag Sharma
> >
> >
>
>
>

-- 
Cordiali saluti, Dr.Oteri Francesco