Cover illustration: A view of the trimer in the crystal packing of 7-methoxy-1H-indazole. Dashed lines indicate hydrogen bonds. See Sopková-de Oliveira Santos, Collot & Rault [Acta Cryst. (2002), C58, o688-o690].
NaZnFe2(PO4)3 features a new structural type built up from ZnO6 octahedra, FeO6 octahedra and FeO4 tetrahedra, linked together via the corners and edges of PO4 tetrahedra to form a three-dimensional framework, with tunnels running along . Within these tunnels, Na+ cations occupy highly distorted cubic sites.
The crystal structure of lithium disodium aluminium hexafluoride, LiNa2AlF6, has been solved using X-ray powder diffraction. The monoclinically distorted structure is related to that of cubic elpasolite.
Rietveld refinement of the neutron powder profiles of chlorofluoromethane, CH2ClF, shows that it crystallizes in the monoclinic system, with two formula units in the unit cell. The structure is close-packed and shows weakly hydrogen-bonded zigzag chains.