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A multireference coupled-cluster potential energy surface of diazomethane, CH2N2./sub

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F05%3A00025815" target="_blank" >RIV/61388955:_____/05:00025815 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A multireference coupled-cluster potential energy surface of diazomethane, CH2N2./sub

  • Original language description

    The intrinsically muldreference dissociation of the C-N bond in ground-state diazornethane (CH2N2) at different angles has been studied with the multireference Brillouin-Wigner coupled-cluster singles and doubles (MRBWCCSD) method. The morphology of thecalculated potential energy surface (PES) in C, symmetry is similar to a multireference perturbational (CASPT3) PES. The MRBWCCSD/cc-pVTZ H2C-N2 dissociation energy with respect to the asymptotic CH2(a1A1) + N2(X1.SIGMA.g+) products is De = 35.9 kcal/mol, or a zero-point corrected D0 = 21.4 kcal/mol with respect to the ground-state CH2(X3 B1) + N2(X1.SIGMA.g+) fragments.

  • Czech name

    Povrch potenciální energie diazomethanu CH2N2 multireferenční metodou spřažených klastrů (Coupled Clusters)

  • Czech description

    Disociace vazby C-N v základním stavu diazomethanu je mulrireferenční proces a byl proto studován variantou multireferenční metody coupled clusters se zahrnutím monoexcitovaných a biexcitovaných klastrů a při použití resolventy Brillouinova-Wignerova typu (MRBWCCSD). Vypočtený povrch potenciální energie má symetrii C2v podobně jako povrch získaný multireferenční poruchovou teorií CASPT3. Vypočtená disociační energie v aproximaci MRBWCCSD/cc-pVTZ pro vazbu H2C-N2 je De=35,9 kcal/mol vzhledem k asymptotěCH2(a1A1) a N2(X1.SIGMA.g) a D0=21,4 kcal/mol vzhledem k energii základního stavu CH2(X3 B1) a N2(X1.SIGMA.g).

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

    <a href="/en/project/OC%20D23.001" target="_blank" >OC D23.001: A European Laboratory for Multireference Quantum Chemical Methods</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Physical Chemistry. A

  • ISSN

    1089-5639

  • e-ISSN

  • Volume of the periodical

    109

  • Issue of the periodical within the volume

    44

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

    10148-10152

  • UT code for WoS article

  • EID of the result in the Scopus database