Unit cells of choline halides and structure of choline chloride
Unit cells of choline halides and structure of choline chloride is a scholarly work, published in 1960 in ''Acta Crystallographica''. The main subjects of the publication include biochemistry, chemistry, halide, chloride, inorganic chemistry, choline chloride, neuroprotection, choline, unit, and nuclear chemistry. Three choline halides have been studied by single-crystal X-ray diffraction methods at room temperature.Choline chloride is orthorhombic, space group P212121, a=11.2I+0"02,b=11.59_+0"02,c=5.87+0"02A, Z=4.Atomic coordinates have been determined by least-squares refinement of three-dimensional data.Bond distances in A are: N-C (methyl), 1.53, 1.52, 1.50; N-C (side chain), 1.60;C--C, 1.56;C-O, 1-39 (each + 0-03 A).Choline bromide is orthorhombic, probable space group Pna21 or Pnam, a=19-55+_0.04,b=7.35+0.03,c=5.69+0.02A, Z=4, Choline iodide is monoclinic, probable space group P21, a=5.88+0.02,b=8.20+0.