Ab initio study of the EFG at the N sites in imidazole

Marcos Brown Gonçalves, R. Di Felice, O. Kh Poleshchuk, H. M. Petrilli

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    We study the nuclear quadrupole interaction at the nitrogen sites in the molecular and crystalline phases of the imidazole compound. We use PAW which is a state-of-the-art method to calculate the electronic structure and electric field gradient at the nucleus in the framework of the density functional theory. The quadrupole frequencies at both imino and amino N sites are in excellent agreement with measurements. This is the first time that the electric field gradient at crystalline imidazole is correctly treated by an ab initio theoretical approach.

    Original languageEnglish
    Pages (from-to)53-58
    Number of pages6
    JournalHyperfine Interactions
    Issue number1-3
    Publication statusPublished - 1 Jan 2008


    • Electric field gradient at the nucleus
    • Hyperfine interactions
    • Imidazole
    • PAW
    • Quadrupole coupling constant

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Nuclear and High Energy Physics
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry

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