Caesium chloride 2-(N-morpholinio)­ethane­sulfonate

In the structure of caesium chloride 2-(N-morpholinio)­ethane­sulfonate, Cs⁺·Cl^-·C₆H₁₃NO₄S, determined by X-ray diffraction analysis at 100 K, the caesium cation is coordinated by the chloride anion and six O atoms.

2-Bromo­ethyl 2,3,4,6-tetra-O-acetyl-β-D-gluco­pyran­oside

The six-membered ring of the title compound, C₁₆H₂₃BrO₁₀, adopts a chair conformation. The mol­ecules are interconnected by weak C—H...O hydrogen bonds into a three-dimensional network.

2-Thio­cytosinium chloride

The title compound (systematic name: 4-amino-2-thioxo-2,3-dihydro­pyrimidin-1-ium chloride), C₄H₆N₃S⁺·Cl⁻, has two cations and two anions in the asymmetric unit. The two cations have nearly the same structure. Both are nearly planar, the largest distance from the non-H atoms to the least-squares plane through the six-membered ring atoms being 0.010 (2) Å. Both Cl⁻ ions serve as hydrogen-bond acceptors. One thiocytosinium cation forms N—H...Cl hydrogen bonds with three Cl⁻ anions and the other one with four Cl⁻ ions, giving a sheet parallel to (101). There is also an N—H...S inter­molecular hydrogen bond.

2-Thio­cytosinium bromide

The structure of the title compound (systematic name: 6-amino-2-thioxo-2,3-dihydro­pyrimidin-1-ium bromide), C₄H₆N₃S⁺·Br^-, has two 2-thio­cytosinium cations and two Br^- anions in the asymmetric unit and is isostructural with 2-thio­cytosinium chloride. Both six-membered rings are essentially planar. S atoms and Br^- anions serve as hydrogen-bond acceptors, forming sheets parallel to (101).