title: Cyclic trihydroxamic acid derivatives.
abstract: In the crystal structures of two cyclic trihydroxamic acid derivatives containing the same substructure unit, viz. 1,3,5-trihydroxy-1,3,5-triazinane-2,4,6-trione dihydrate, C3H3N3O6.2H2O, (I), and 1,3,5-benzyloxy-1,3,5-triazinane-2,4,6-trione, C24H21N3O6, (II), there is no significant difference in the geometric parameters. In (I), there are 11 hydrogen bonds of the O-H...O type interconnecting the molecules in a three-dimensional network, while in (II) there are only two weak C-H...O hydrogen bonds. The results of IR spectroscopic analysis are in good agreement with the crystallographic study.
authors.affiliation: Laboratory of General and Inorganic Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia. idilovic@chem.pmf.hr
authors.forename: Ivica
authors.initials: I
authors.lastname: Dilović
authors.forename: Dubravka
authors.initials: D
authors.lastname: Matković-Calogović
authors.forename: Ivan
authors.initials: I
authors.lastname: Kos
authors.forename: Mladen
authors.initials: M
authors.lastname: Birus
authors.forename: Milena
authors.initials: M
authors.lastname: Jadrijević-Mladar Takac
mesh_terms: D000143:Acids / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D011336:Probability; D014227:Triazines / Q000737:chemistry*
chemical_list: C518426:1,3,5-benzyloxy-1,3,5-triazinane-2,4,6-trione; C518425:1,3,5-trihydroxy-1,3,5-triazinane-2,4,6-trione; D000143:Acids; D014227:Triazines