Molecular structures of M2N22- (M and N = B, Al, and Ga) clusters using the gradient embedded genetic algorithm

Full Text
MolecularStructures.pdf embargoed access
Request a copy
When filling the form you are requesting a copy of the article, that is deposited in the institutional repository (DUGiDocs), at the autor or main autor of the article. It will be the same author who decides to give a copy of the document to the person who requests it, if it considers it appropriate. In any case, the UdG Library doesn’t take part in this process because it is not authorized to provide restricted articles.
Al-4(2-) was the first discovered sigma + pi aromatic all-metal cluster. In the present work we analyze the molecular structure, relative stability, and aromaticity of lowest-lying isomers of related M2N22- (M and N = B, Al, and Ga) clusters, with special emphasis devoted to the cis (C-2v) and trans (D-2h) isomers of the M2N22- clusters. For such purpose, we start by performing the search of the global minimum for each cluster through the Gradient Embedded Genetic Algorithm (GEGA). Energy decomposition analyses and the calculated magnetic-and electronic-based aromaticity criteria of the lowest-lying isomers help to understand the nature of the bonding and the origin of the stability of the global minima. Such methodology should allow guiding future molecular design strategies ​
​Tots els drets reservats