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Probing the flexibility of internal rotation in silylated phenols with the NMR scalar spin-spin coupling constants

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F08%3A00313938" target="_blank" >RIV/61388963:_____/08:00313938 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985858:_____/08:00313938

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Probing the flexibility of internal rotation in silylated phenols with the NMR scalar spin-spin coupling constants

  • Original language description

    The rotation of a trimethylsiloxy (TMSO) group in three silylated phenols (with ortho substituents -H, -CH3, and -C(CH3)3) was studied with NMR nJ(Si,C), n = 2, 3, 4, 5, scalar spin-spin coupling between the 29Si nucleus of the TMSO group and the 13C nuclei of the phenyl ring. The ab-initio quantum chemistry calculations indicate that inclusion of molecular motion into theoretical modelling of NMR parameters is particularly necessary for molecular systems with large-amplitude internal motions.

  • Czech name

    Určení flexibility vnitřní rotace v silylovaných fenolech pomocí skalárních spin-spinových štěpících konstant

  • Czech description

    Rotace trimethylsiloxy (TMSO) skupiny ve třech silylovaných fenolech (s ortho substituenty -H, -CH3 a -C(CH3)3) byla zkoumána pomocí NMR nJ(Si,C), n = 2, 3, 4, 5, skalárního spin-spinového štěpení mezi jádry křemíku 29Si v TMSO skupině a uhlíku 13C fenylového kruhu. Ab-initio kvantově chemické výpočty ukazují, že zahrnutí molekulového pohybu do teoretického modelování NMR parametrů je obzvláště nutné pro systémy s vnitřní dynamikou o velkých amplitudách.

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

    2008

  • 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

    112

  • Issue of the periodical within the volume

    23

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

  • UT code for WoS article

    000256492200020

  • EID of the result in the Scopus database