@Article{BarretoCBPALMA:2017:GeCaAp,
author = "Barreto, Patr{\'{\i}}cia Regina Pereira and Cruz, Ana Claudia
Pinheiro da Silva and Barreto, Rodrigo L. P. and Palazzetti,
Federico and Albernaz, Alessandra F. and Lombardi, Andrea and
Maciel, Glauciete S. and Aquilanti, Vincenzo",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade de Santa
Catarina} and {Universit{\`a} di Perugia} and {Universidade de
Bras{\'{\i}}lia (UnB)} and {Universit{\`a} di Perugia} and
{Universit{\`a} di Perugia} and {Universit{\`a} di Perugia}",
title = "The spherical-harmonics representation for the interaction between
diatomic molecules: the general case and applications to COACO and
COAHF",
journal = "Journal of Molecular Spectroscopy",
year = "2017",
volume = "337",
pages = "163--177",
month = "July",
abstract = "The spherical-harmonics expansion is a mathematically rigorous
procedure and a powerful tool for the representation of potential
energy surfaces of interacting molecular systems, determining
their spectroscopic and dynamical properties, specifically in van
der Waals clusters, with applications also to classical and
quantum molecular dynamics simulations. The technique consists in
the construction (by ob initio or semiempirical methods) of the
expanded potential interaction up to terms that provide the
generation of a number of leading configurations sufficient to
account for faithful geometrical representations. This paper
reports the full general description of the method of the
spherical-harmonics expansion as applied to diatomic-molecule -
diatomic-molecule systems of increasing complexity: the
presentation of the mathematical background is given for providing
both the application to the prototypical cases considered
previously (O-2-O-2, N-2-N-2, and N-2-O-2 systems) and the
generalization to: (i) the CO-CO system, where a characteristic
feature is the lower symmetry order with respect to the cases
studied before, requiring a larger number of expansion terms
necessary to adequately represent the potential energy surface;
and (ii) the CO-HF system, which exhibits the lowest order of
symmetry among this class of aggregates and therefore the highest
number of leading configurations.",
doi = "10.1016/j.jms.2017.05.009",
url = "http://dx.doi.org/10.1016/j.jms.2017.05.009",
issn = "0022-2852",
language = "en",
targetfile = "Barreto_spherical.pdf",
urlaccessdate = "27 abr. 2024"
}