Synthesis and absolute structure of ()-2-(benzyl-selan-yl)-1-phenyl-ethanaminium hydrogen sulfate monohydrate: crystal structure and Hirshfeld surface analyses.

A hydrogen sulfate salt, CHNSe·HSO ·HO or [BnSeCHCH(Ph)NH ](HSO ), of a chiral selenated amine ()-2-(benzyl-selan-yl)-1-phenyl-ethan-amine (BnSeCHCH(Ph)NH) has been synthesized and characterized by elemental analysis,H and C{H} NMR, FT-IR analysis, and single-crystal X-ray diffraction studies. The title salt crystallizes in the monohydrate form in the non-centrosymmetric monoclinic 2 space group. The cation is somewhat W shaped with the dihedral angle between the two aromatic rings being 60.

Crystal structure of (2R)-1-[(methyl-sulfon-yl)-oxy]propan-2-aminium chloride: a chiral mol-ecular salt.

In the title chiral mol-ecular salt, C4H12NO3S(+)·Cl(-), the cation is protonated at the N atom, producing [RNH3](+), where R is CH3SO2OCH2C(H)CH3. The N atom in the cation is sp (3)-hybridized. In the crystal, cations and anions are connected by strong N-H⋯Cl hydrogen bonds to generate edge-shared 12-membered rings of the form {⋯Cl⋯HNH}3.

Crystal structure of 1-[(6-chloro-pyridin-3-yl)sulfon-yl]-1,2,3,4-tetra-hydro-quinoline.

The tetra-hydro-pyridine ring of the quinoline system in the title compound, C14H13ClN2O2S, adopts a half-chair conformation with the bond-angle sum at the N atom being 350.0°. The dihedral angle between the least-squares planes of the two aromatic rings is 50.