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- Austin_Model_1 abstract "Austin Model 1, or AM1, is a semi-empirical method for the quantum calculation of molecular electronic structure in computational chemistry. It is based on the Neglect of Differential Diatomic Overlap integral approximation. Specifically, it is a generalization of the modified neglect of differential diatomic overlap approximation. Related methods are PM3 and the older MINDO.AM1 was developed by Michael Dewar and co-workers and published in 1985. AM1 is an attempt to improve the MNDO model by reducing the repulsion of atoms at close separation distances. The atomic core-atomic core terms in the MNDO equations were modified through the addition of off-center attractive and repulsive Gaussian functions. The complexity of the parameterization problem increased in AM1 as the number of parameters per atom increased from 7 in MNDO to 13-16 per atom in AM1. The results of AM1 calculations are sometimes used as the starting points for parameterizations of forcefields in molecular modelling.AM1 is implemented in the MOPAC, AMPAC, Gaussian, CP2K, GAMESS (US), PC GAMESS, GAMESS (UK), and SPARTAN programs.An extension of AM1 is SemiChem Austin Model 1 (SAM1), which is implemented in the AMPAC program and which explicitly treats d-orbitals.A model for the AM1 calculation of lanthanide complexes, called Sparkle/AM1, was also introduced and is implemented in MOPAC2007.AM1 has been recently reparameterized, leading to the new RM1, or Recife Model 1, available in MOPAC2007, SPARTAN software, Hyperchem 8, etc.An extension of AM1 is AM1* that is available in VAMP software.".
- Austin_Model_1 wikiPageExternalLink openmopac.net.
- Austin_Model_1 wikiPageExternalLink www.hyper.com.
- Austin_Model_1 wikiPageExternalLink www.rm1.sparkle.pro.br.
- Austin_Model_1 wikiPageExternalLink www.sparkle.pro.br.
- Austin_Model_1 wikiPageExternalLink spartan.html.
- Austin_Model_1 wikiPageID "2235169".
- Austin_Model_1 wikiPageLength "3763".
- Austin_Model_1 wikiPageOutDegree "26".
- Austin_Model_1 wikiPageRevisionID "544063014".
- Austin_Model_1 wikiPageWikiLink AM1*.
- Austin_Model_1 wikiPageWikiLink AMPAC.
- Austin_Model_1 wikiPageWikiLink CP2K.
- Austin_Model_1 wikiPageWikiLink Category:Semiempirical_quantum_chemistry_methods.
- Austin_Model_1 wikiPageWikiLink Computational_chemistry.
- Austin_Model_1 wikiPageWikiLink Firefly_(computer_program).
- Austin_Model_1 wikiPageWikiLink GAMESS_(UK).
- Austin_Model_1 wikiPageWikiLink GAMESS_(US).
- Austin_Model_1 wikiPageWikiLink Gaussian_(software).
- Austin_Model_1 wikiPageWikiLink List_of_things_named_after_Carl_Friedrich_Gauss.
- Austin_Model_1 wikiPageWikiLink MINDO.
- Austin_Model_1 wikiPageWikiLink MNDO.
- Austin_Model_1 wikiPageWikiLink MOPAC.
- Austin_Model_1 wikiPageWikiLink Michael_J._S._Dewar.
- Austin_Model_1 wikiPageWikiLink Molecular_modelling.
- Austin_Model_1 wikiPageWikiLink NDDO.
- Austin_Model_1 wikiPageWikiLink PM3_(chemistry).
- Austin_Model_1 wikiPageWikiLink Quantum_chemistry.
- Austin_Model_1 wikiPageWikiLink SAM1.
- Austin_Model_1 wikiPageWikiLink Semi-empirical_quantum_chemistry_method.
- Austin_Model_1 wikiPageWikiLink Spartan_(software).
- Austin_Model_1 wikiPageWikiLink VAMP_(software).
- Austin_Model_1 wikiPageWikiLinkText "AM1".
- Austin_Model_1 wikiPageWikiLinkText "Austin Model 1".
- Austin_Model_1 wikiPageUsesTemplate Template:Cite_book.
- Austin_Model_1 wikiPageUsesTemplate Template:Cite_journal.
- Austin_Model_1 wikiPageUsesTemplate Template:Otheruses.
- Austin_Model_1 wikiPageUsesTemplate Template:Physical-chemistry-stub.
- Austin_Model_1 wikiPageUsesTemplate Template:Quantum-stub.
- Austin_Model_1 wikiPageUsesTemplate Template:Theoretical-chem-stub.
- Austin_Model_1 subject Category:Semiempirical_quantum_chemistry_methods.
- Austin_Model_1 hypernym Method.
- Austin_Model_1 type Software.
- Austin_Model_1 type Mechanic.
- Austin_Model_1 type Method.
- Austin_Model_1 comment "Austin Model 1, or AM1, is a semi-empirical method for the quantum calculation of molecular electronic structure in computational chemistry. It is based on the Neglect of Differential Diatomic Overlap integral approximation. Specifically, it is a generalization of the modified neglect of differential diatomic overlap approximation. Related methods are PM3 and the older MINDO.AM1 was developed by Michael Dewar and co-workers and published in 1985.".
- Austin_Model_1 label "Austin Model 1".
- Austin_Model_1 sameAs Q2400086.
- Austin_Model_1 sameAs AM1.
- Austin_Model_1 sameAs m.06y3my.
- Austin_Model_1 sameAs Метод_АМ1.
- Austin_Model_1 sameAs Q2400086.
- Austin_Model_1 wasDerivedFrom Austin_Model_1?oldid=544063014.
- Austin_Model_1 isPrimaryTopicOf Austin_Model_1.