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Determination of local spins by means of a spin-free treatment

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  • معلومة اضافية
    • بيانات النشر:
      American Chemical Society
    • Collection:
      CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
    • نبذة مختصرة :
      This work describes a Mulliken-type partitioning of the expectation value of the spin-squared operator corresponding to an N-electron system. Our algorithms, which are based on a spin-free formulation, predict appropriate spins for the molecular fragments (at equilibrium geometries and at dissociation limits) and can be applied to any spin symmetry. Numerical determinations performed in selected closed- and open-shell systems at correlated level are reported. A comparison between these results and their counterpart ones arising from other alternative approaches is analyzed in detail. © 2011 American Chemical Society. ; Fil: Alcoba, Diego Ricardo. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina ; Fil: Torre, Alicia. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; España ; Fil: Blainq, Luis. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; España ; Fil: Bochicchio, Roberto Carlos. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
    • File Description:
      application/pdf
    • ISSN:
      1549-9618
    • Relation:
      http://hdl.handle.net/11336/56583; Alcoba, Diego Ricardo; Torre, Alicia; Blainq, Luis; Bochicchio, Roberto Carlos; Determination of local spins by means of a spin-free treatment; American Chemical Society; Journal of Chemical Theory and Computation; 7; 11; 10-2011; 3560-3566; CONICET Digital; CONICET
    • الدخول الالكتروني :
      http://hdl.handle.net/11336/56583
    • Rights:
      info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
    • الرقم المعرف:
      edsbas.717C3BD9