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The Performance of the Multireference Brillouin-Wigner Coupled Cluster Singles and Doubles Method on the Insertion of Be into H2

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F04%3A00101052" target="_blank" >RIV/61388955:_____/04:00101052 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The Performance of the Multireference Brillouin-Wigner Coupled Cluster Singles and Doubles Method on the Insertion of Be into H2

  • Original language description

    The perpendicular (C-2v) insertion pathway of ((XS)-S-1) Be into (X(1)Sigma(g)(+)) H-2 is calculated by means of the multireference Brillouin-Wigner coupled cluster singles and doubles (MRBWCCSD) method and compared with the results of full configurationinteraction (FCI), the multireference averaged coupled pair functional (MRACPF), and with previously reported MRCCSD results. MRBWCCSD is shown to provide a fairly accurate description of the BeH2 potential energy surface. If higher accuracy is required, inclusion of connected triples into the MRCC model seems to be unavoidable.

  • Czech name

    Otestování multireferenční Brillouin-Wignerovy coupled cluster metody s mono a biexcitacemi na vložení Be do H2

  • Czech description

    Kolmá (C2v) reakční koordináta pro vložení (X1S) Be do molekuly vodíku v základním stavu byla spočtena pomocí multireferenční Brillouin-Wignerovy coupled cluster metody s mono a biexcitacemi (MRBWCCSD) a porovnána s výsledky úplné konfigurační interakce,multireferenčního středovaného coupled pair funkcionálu a s předchozími výsledky MRCCSD. Je ukázáno, že MRBWCCSD dává výsledky uspokojivé přesnosti pro BeH2 potenciálový povrch. Pokud by byla potřeba vyšší přesnost, bude nezbytné zahrnout triexcitace doMRCC metody.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Chemical Physics Letters

  • ISSN

    0009-2614

  • e-ISSN

  • Volume of the periodical

    386

  • Issue of the periodical within the volume

    1/3

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    5

  • Pages from-to

    211-215

  • UT code for WoS article

  • EID of the result in the Scopus database