metal-organic compounds
Open access
The title compound, [Fe(C5H5)(C8H13N)]Br, is isotypic with the analogous chloride compound. The Fe—C bond lengths are in the range 2.020 (6)–2.048 (7) Å. In the crystal, the cations and bromide anions are connected by N+—HBr− hydrogen bonds.
organic compounds
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In the title compound, C15H14ClNO4S, the benzene rings are oriented at a dihedral angle of 85.42 (1)°. An intramolecular N—HO hydrogen bond results in the formation of a five-membered ring and an intramolecular C—HO interaction also occurs.
organic compounds
Open access
In the title compound, C9H13N2O+·ClO4−, the dihedral angle between the planes of the amide group and the pyridinium fragment is 34.11 (14)°. In the crystal, the cations are connected by N—HO hydrogen bonds between the amide groups into chains extended along the a axis. Hydrogen bonds between the pyridinium N—H group and the perchlorate anions organize the chains into a two-dimensional network.