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ONIOM DFT/GFN-FF
- nuno
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1 year 10 months ago #1323
by nuno
ONIOM DFT/GFN-FF was created by nuno
I have tried to run an ONIOM calculation with DFT/GFN-FF adapted from one of your tests but I get an error message from the program trying to copy a file that doesn't exist.
Here it is attached.
======================================================================
*** Calculation # 1 is finished ***
======================================================================
Fatal error in cp MINP.1.molden.input MOLDEN.composite.
Program will stop.
************************ 2023-01-27 13:59:28 *************************
Error at the termination of mrcc.
**********************************************************************
Here it is attached.
======================================================================
*** Calculation # 1 is finished ***
======================================================================
Fatal error in cp MINP.1.molden.input MOLDEN.composite.
Program will stop.
************************ 2023-01-27 13:59:28 *************************
Error at the termination of mrcc.
**********************************************************************
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- hegelyb
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1 year 10 months ago #1325
by hegelyb
Replied by hegelyb on topic ONIOM DFT/GFN-FF
Dear nuno,
Thank you for the report. Please note that the automatic boundary handling of the ONIOM scheme is only applicable when the bonding information of a system is available. In the case of the MRCC/xtb interface, the bond table is generated by the wiberg bond orders (which is obtained from the xtb program), and the GFN force field cannot produce molecular orbital-based bonding information.
However, the MRCC/GFN-FF setup should work with a manually set layer boundaries, which is currently not the case at all. A fix will be available soon.
Best regards,
Bence
Thank you for the report. Please note that the automatic boundary handling of the ONIOM scheme is only applicable when the bonding information of a system is available. In the case of the MRCC/xtb interface, the bond table is generated by the wiberg bond orders (which is obtained from the xtb program), and the GFN force field cannot produce molecular orbital-based bonding information.
However, the MRCC/GFN-FF setup should work with a manually set layer boundaries, which is currently not the case at all. A fix will be available soon.
Best regards,
Bence
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- nuno
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1 year 10 months ago #1326
by nuno
Replied by nuno on topic ONIOM DFT/GFN-FF
Thanks for looking into it!
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