Biomedical subjects
Publications and source records attributed to Matías López-Rodríguez.
The structure of title compound, C6H16N+.C14H8N3O7S-, comprises discrete ions which are interconnected by N-H...O- and N-H+...O- hydrogen bonds, leading to a neutral one-dimensional network along [100]. These hydrogen bonds appear to complement the Coulombic interaction and help to stabilize the structure further.
The crystal and molecular structures of S-(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)-S'-(2,3,4,6-tetra-O-acetyl-beta-d-galactopyranosyl)disulfide (1) and the mono-sulfoxide (3) of bis(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)disulfide (2) are described. Comparison of 2 and 3, containing -S-S- and -S-S(O)- bonds, respectively, allows to delineate structural differences brought about by the different oxidation states of one of the sulfur atoms in carbohydrate disulfides.
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The title compound, C27H19NO2S, contains chains of fused R(2)(2) (19) rings formed by intermolecular C-H...O=C hydrogen bonds and running along the [011] and [0-11] directions. These chains are linked through short intermolecular C-H...pi contacts, giving rise to sheets. The conformation of the title compound is dominated primarily by the nearly orthogonal lone-pair orbitals on the N and S atoms.