Re: [Open Babel] Java API: Can't use OB anymore due to UnsatisfiedLinkError

2014-03-20 Thread Joos Kiener
Found the issue:

I recently installed Avogadro which ships with a different version of
openbabel-2.dll. Because Avogadro adds PATH information to System variables
in contrast to OpenBabel which uses user variables for PATH, the
openbabel-2.dll in Avogadro is picked up first.

My solution is to manually add the path to the openbabel installation to
System PATH BEFORE Avogadro.



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[Open Babel] Conformer searching

2014-03-20 Thread scott_m
Hi all,

I would like to generate conformers for molecules such as C2H6 and N2H4, is
this possible? The bonds in these molecules are not being detected as
rotatable bonds, why is this?

Best wishes,

Scott



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Re: [Open Babel] Conformer searching

2014-03-20 Thread Igor Filippov
Hold on, what is to rotate in a C2 or N2 molecule? And what would be a
conformation for a diatomic structure aside from the trivial one???
It's just two atoms (not including hydrogens) with a single bond between
them or did I misunderstand the question completely?

Igor


On Thu, Mar 20, 2014 at 10:54 AM, scott_m js...@cam.ac.uk wrote:

 Hi all,

 I would like to generate conformers for molecules such as C2H6 and N2H4, is
 this possible? The bonds in these molecules are not being detected as
 rotatable bonds, why is this?

 Best wishes,

 Scott



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 http://forums.openbabel.org/Conformer-searching-tp4657314.html
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Re: [Open Babel] Conformer searching

2014-03-20 Thread Igor Filippov
I don't think openbabel can do DFT or any kind of ab initio quantum
chemistry.

Regards,
Igor


On Thu, Mar 20, 2014 at 11:15 AM, Scott McKechnie js...@cam.ac.uk wrote:

 Ethane (C2H6) and hydrazine (N2H4) have distinct minima that are separated
 by rotational barriers. Depending on the input structure, a geometry
 optimization (for instance in DFT) will bring you to one of these minima. I
 am interested in generating such conformations in a systematic way.

 Best wishes.

 Scott


 On 20 March 2014 15:06, Igor Filippov igor.v.filip...@gmail.com wrote:

 Hold on, what is to rotate in a C2 or N2 molecule? And what would be a
 conformation for a diatomic structure aside from the trivial one???
 It's just two atoms (not including hydrogens) with a single bond between
 them or did I misunderstand the question completely?

 Igor


 On Thu, Mar 20, 2014 at 10:54 AM, scott_m js...@cam.ac.uk wrote:

 Hi all,

 I would like to generate conformers for molecules such as C2H6 and N2H4,
 is
 this possible? The bonds in these molecules are not being detected as
 rotatable bonds, why is this?

 Best wishes,

 Scott



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 View this message in context:
 http://forums.openbabel.org/Conformer-searching-tp4657314.html
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 Graph Databases is the definitive new guide to graph databases and
 their
 applications. Written by three acclaimed leaders in the field,
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 http://p.sf.net/sfu/13534_NeoTech
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 OpenBabel-discuss@lists.sourceforge.net
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Re: [Open Babel] Conformer searching

2014-03-20 Thread Scott McKechnie
Thanks Igor but that was just an example of how you could find the minima
from input structures, I am interested in generating the conformers using
openbabel.

Best wishes,

Scott


On 20 March 2014 15:21, Igor Filippov igor.v.filip...@gmail.com wrote:

 I don't think openbabel can do DFT or any kind of ab initio quantum
 chemistry.

 Regards,
 Igor


 On Thu, Mar 20, 2014 at 11:15 AM, Scott McKechnie js...@cam.ac.uk wrote:

 Ethane (C2H6) and hydrazine (N2H4) have distinct minima that are
 separated by rotational barriers. Depending on the input structure, a
 geometry optimization (for instance in DFT) will bring you to one of these
 minima. I am interested in generating such conformations in a systematic
 way.

 Best wishes.

 Scott


 On 20 March 2014 15:06, Igor Filippov igor.v.filip...@gmail.com wrote:

 Hold on, what is to rotate in a C2 or N2 molecule? And what would be a
 conformation for a diatomic structure aside from the trivial one???
 It's just two atoms (not including hydrogens) with a single bond between
 them or did I misunderstand the question completely?

 Igor


 On Thu, Mar 20, 2014 at 10:54 AM, scott_m js...@cam.ac.uk wrote:

 Hi all,

 I would like to generate conformers for molecules such as C2H6 and
 N2H4, is
 this possible? The bonds in these molecules are not being detected as
 rotatable bonds, why is this?

 Best wishes,

 Scott



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 View this message in context:
 http://forums.openbabel.org/Conformer-searching-tp4657314.html
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 Graph Databases is the definitive new guide to graph databases and
 their
 applications. Written by three acclaimed leaders in the field,
 this first edition is now available. Download your free book today!
 http://p.sf.net/sfu/13534_NeoTech
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 OpenBabel-discuss@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/openbabel-discuss





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Re: [Open Babel] Conformer searching

2014-03-20 Thread Pascal Muller
Hi,





Thanks Igor but that was just an example of how you could find the minima
 from input structures, I am interested in generating the conformers using
 openbabel.


What about
http://openbabel.org/wiki/Obconformer for the command line tool
or
http://openbabel.org/dev-api/group__conformer.shtml if you want to
customize.

I didn't try it myself, though.

Best regards,
Pascal
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Re: [Open Babel] Conformer searching

2014-03-20 Thread Scott McKechnie
They're the type of tools I'm looking for but they don't produce any
conformers for N2H4 and C2H6.

Thanks,

Scott


On 20 March 2014 15:49, Pascal Muller pascal.jm.mul...@gmail.com wrote:

 Hi,





 Thanks Igor but that was just an example of how you could find the minima
 from input structures, I am interested in generating the conformers using
 openbabel.


 What about
 http://openbabel.org/wiki/Obconformer for the command line tool
 or
 http://openbabel.org/dev-api/group__conformer.shtml if you want to
 customize.

 I didn't try it myself, though.

 Best regards,
 Pascal

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