title: Bowls, balls and sheets of boric acid clusters: the role of pentagon and hexagon motifs.
abstract: Ab initio calculations suggest the possibility of forming boric acid clusters in the laboratory. The most stable form of the boric acid dimer contains two hydrogen bonds, similar to the carboxylic acid dimers. Though the trimer and the tetramer form extensions of this geometry, the pentamer prefers a bowl shape. Any addition of boric acid molecules to this geometry leads to bowl-shaped structures with the 15-mer forming a (3/4)buckyball and the 20-mer a full-fledged buckyball. The hexamer, on the other hand, prefers to stay planar as a hexagon-centered rosette. Any further extension of this geometry leads to planar structures as long as a pentagon is not included.
authors.affiliation: Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai, India 600 020.
authors.forename: M
authors.initials: M
authors.lastname: Elango
authors.forename: R
authors.initials: R
authors.lastname: Parthasarathi
authors.forename: V
authors.initials: V
authors.lastname: Subramanian
authors.forename: N
authors.initials: N
authors.lastname: Sathyamurthy
mesh_terms: D001888:Boric Acids / Q000737:chemistry*; D003198:Computer Simulation; D008956:Models, Chemical; D015394:Molecular Structure
chemical_list: D001888:Boric Acids