QUILD: QUantum-regions interconnected by local descriptions
A new program for multilevel (QM/QM and/or QM/MM) approaches is presented that is able to combine different computational descriptions for different regions in a transparent and flexible manner. This program, designated QUILD (for QUantum-regions Interconnected by Local Descriptions), uses adapted d...
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ftvuamstcris:oai:research.vu.nl:publications/a2f35e0f-da36-4170-9592-b3bba993de80 2024-09-30T14:40:59+00:00 QUILD: QUantum-regions interconnected by local descriptions Swart, M. Bickelhaupt, F.M. 2008 https://research.vu.nl/en/publications/a2f35e0f-da36-4170-9592-b3bba993de80 https://doi.org/10.1002/jcc.20834 eng eng https://research.vu.nl/en/publications/a2f35e0f-da36-4170-9592-b3bba993de80 info:eu-repo/semantics/closedAccess Swart , M & Bickelhaupt , F M 2008 , ' QUILD: QUantum-regions interconnected by local descriptions ' , Journal of Computational Chemistry , vol. 29 , no. 5 , pp. 724-34 . https://doi.org/10.1002/jcc.20834 /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy name=SDG 7 - Affordable and Clean Energy article 2008 ftvuamstcris https://doi.org/10.1002/jcc.20834 2024-09-12T00:17:36Z A new program for multilevel (QM/QM and/or QM/MM) approaches is presented that is able to combine different computational descriptions for different regions in a transparent and flexible manner. This program, designated QUILD (for QUantum-regions Interconnected by Local Descriptions), uses adapted delocalized coordinates (Int J Quantum Chem 2006, 106, 2536) for efficient geometry optimizations of equilibrium and transition-state structures, where both weak and strong coordinates may be present. The Amsterdam Density Functional (ADF) program is used for providing density functional theory and MM energies and gradients, while an interface to the ORCA program is available for including RHF, MP2, or semiempirical descriptions. The QUILD optimization setup reduces the number of geometry steps needed for the Baker test-set of 30 organic molecules by ∼30% and for a weakly-bound test-set of 18 molecules by ∼75% compared with the old-style optimizer in ADF, i.e., a speedup of roughly a factor four. We report two examples of using geometry optimizations with numerical gradients, for spin-orbit relativistic ZORA and for excited-state geometries. Finally, we show examples of its multilevel capabilities for a number of systems, including the multilevel boundary region of amino acid residues, an S Article in Journal/Newspaper Orca Vrije Universiteit Amsterdam (VU): Research Portal The Baker ENVELOPE(-54.765,-54.765,49.667,49.667) Journal of Computational Chemistry 29 5 724 734 |
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Vrije Universiteit Amsterdam (VU): Research Portal |
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English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy name=SDG 7 - Affordable and Clean Energy |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy name=SDG 7 - Affordable and Clean Energy Swart, M. Bickelhaupt, F.M. QUILD: QUantum-regions interconnected by local descriptions |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy name=SDG 7 - Affordable and Clean Energy |
description |
A new program for multilevel (QM/QM and/or QM/MM) approaches is presented that is able to combine different computational descriptions for different regions in a transparent and flexible manner. This program, designated QUILD (for QUantum-regions Interconnected by Local Descriptions), uses adapted delocalized coordinates (Int J Quantum Chem 2006, 106, 2536) for efficient geometry optimizations of equilibrium and transition-state structures, where both weak and strong coordinates may be present. The Amsterdam Density Functional (ADF) program is used for providing density functional theory and MM energies and gradients, while an interface to the ORCA program is available for including RHF, MP2, or semiempirical descriptions. The QUILD optimization setup reduces the number of geometry steps needed for the Baker test-set of 30 organic molecules by ∼30% and for a weakly-bound test-set of 18 molecules by ∼75% compared with the old-style optimizer in ADF, i.e., a speedup of roughly a factor four. We report two examples of using geometry optimizations with numerical gradients, for spin-orbit relativistic ZORA and for excited-state geometries. Finally, we show examples of its multilevel capabilities for a number of systems, including the multilevel boundary region of amino acid residues, an S |
format |
Article in Journal/Newspaper |
author |
Swart, M. Bickelhaupt, F.M. |
author_facet |
Swart, M. Bickelhaupt, F.M. |
author_sort |
Swart, M. |
title |
QUILD: QUantum-regions interconnected by local descriptions |
title_short |
QUILD: QUantum-regions interconnected by local descriptions |
title_full |
QUILD: QUantum-regions interconnected by local descriptions |
title_fullStr |
QUILD: QUantum-regions interconnected by local descriptions |
title_full_unstemmed |
QUILD: QUantum-regions interconnected by local descriptions |
title_sort |
quild: quantum-regions interconnected by local descriptions |
publishDate |
2008 |
url |
https://research.vu.nl/en/publications/a2f35e0f-da36-4170-9592-b3bba993de80 https://doi.org/10.1002/jcc.20834 |
long_lat |
ENVELOPE(-54.765,-54.765,49.667,49.667) |
geographic |
The Baker |
geographic_facet |
The Baker |
genre |
Orca |
genre_facet |
Orca |
op_source |
Swart , M & Bickelhaupt , F M 2008 , ' QUILD: QUantum-regions interconnected by local descriptions ' , Journal of Computational Chemistry , vol. 29 , no. 5 , pp. 724-34 . https://doi.org/10.1002/jcc.20834 |
op_relation |
https://research.vu.nl/en/publications/a2f35e0f-da36-4170-9592-b3bba993de80 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/jcc.20834 |
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Journal of Computational Chemistry |
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29 |
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5 |
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724 |
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734 |
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1811643422847533056 |