[gmx-users] PRODRG crash

2010-06-22 Thread Moeed
Dear Justin,

Actually, I used -d option because you said the atoms in the box must be
half a bond length from the edges of box...I thought maybe this can be done
by -d...

With PRODRG I am unable to produce coordinate file a chain with less than
three C atoms.
I sketched the molecules:
C-C ethane
C=C Ethylene
but I am getting a message:

ERRDRG PRODRG does not deal with mono/di-atomic molecules.
PRODRG Program terminated unsuccessfully, sorry!


1- Could you please help me with this. (actually I need structure file of
ethylene in the future)

2- How can I generate structure file of repeating unit -CH2-CH2- with
PRODRG. I tried the followings...and all I am getting is the above message..
:(

 H H
 | |
 C-C
 | |
 H H

 H H
 | |
-C-C-
 | |
 H H

-C-C-

Moeed
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Re: [gmx-users] PRODRG crash

2010-06-22 Thread Justin A. Lemkul



Moeed wrote:

Dear Justin,

Actually, I used -d option because you said the atoms in the box must be 
half a bond length from the edges of box...I thought maybe this can be 
done by -d...




My point was that you should not be using a combination of -box, -d, and -angles 
simultaneously.  Use either -box or -d, not both, and don't use -angles.


With PRODRG I am unable to produce coordinate file a chain with less 
than three C atoms.

I sketched the molecules:
C-C ethane
C=C Ethylene
but I am getting a message:

ERRDRG PRODRG does not deal with mono/di-atomic molecules.

PRODRG Program terminated unsuccessfully, sorry!


1- Could you please help me with this. (actually I need structure file 
of ethylene in the future)


So make a 4-carbon repeat unit.  It's easy to draw chains with PRODRG (but there 
is a limitation to the number of atoms).


-Justin



2- How can I generate structure file of repeating unit -CH2-CH2- with 
PRODRG. I tried the followings...and all I am getting is the above 
message.. :(


 H H
 | |
 C-C 
 | |

 H H

 H H
 | |
-C-C-
 | |
 H H

-C-C-

Moeed



--


Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin


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