title: Quantum similarity superposition algorithm (QSSA): a consistent scheme for molecular alignment and molecular similarity based on quantum chemistry.
abstract: The use of the molecular quantum similarity overlap measure for molecular alignment is investigated. A new algorithm is presented, the quantum similarity superposition algorithm (QSSA), expressing the relative positions of two molecules in terms of mutual translation in three Cartesian directions and three Euler angles. The quantum similarity overlap is then used to optimize the mutual positions of the molecules. A comparison is made with TGSA, a topogeometrical approach, and the influence of differences on molecular clustering is discussed.
authors.affiliation: Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 (S-3), B-9000 Gent, Belgium. Patrick.Biltinck@UGentbe
authors.forename: Patrick
authors.initials: P
authors.lastname: Bultinck
authors.forename: Tom
authors.initials: T
authors.lastname: Kuppens
authors.forename: Xavier
authors.initials: X
authors.lastname: Gironés
authors.forename: Ramon
authors.initials: R
authors.lastname: Carbó-Dorca
mesh_terms: D000450:Aldosterone / Q000737:chemistry; D000465:Algorithms; D004970:Estrone / Q000737:chemistry; D007536:Isomerism; D008956:Models, Chemical; D008958:Models, Molecular; D015394:Molecular Structure; D021281:Quantitative Structure-Activity Relationship; D011789:Quantum Theory
chemical_list: D004970:Estrone; D000450:Aldosterone