High-resolution crystal structure of the double nitrate hydrate [La(NO)][Ni(HO)]·6HO.

This study introduces bis-[hexa-kis-(nitrato-κ ,')lanthanum(III)] tris-[hexa-aqua-nickel(II)] hexa-hydrate, [La(NO)][Ni(HO)]·6HO, with a structure refined in the hexa-gonal space group . The salt com-prises [La(NO)] icosa-hedra and [Ni(HO)] octa-hedra, thus forming an intricate network of inter-penetrating honeycomb lattices arranged in layers. This arrangement is stabilized through strong hydrogen bonds.

Ba(IO): crystal structure evolution from room temperature to 80 K.

The crystal structure of Ba(IO), penta-barium bis-(orthoperiodate), has been re-investigated at room temperature based on single-crystal X-ray diffraction data. In comparison with a previous crystal structure determination by the Rietveld method, an improved precision of the structural parameters was achieved. Additionally, low-temperature measurements allowed the crystal structure evolution to be studied down to 80 K.

New refinement of the crystal structure of Zn(NH)Cl at 100 K.

The crystal structure of [ZnCl(NH)], diamminedi-chlorido-zinc, was re-investigated at low temperature, revealing the positions of the hydrogen atoms and thus a deeper insight into the hydrogen-bonding scheme in the crystal packing. In comparison with previous crystal structure determinations [MacGillavry & Bijvoet (1936 ▸). , 249-255; Yamaguchi & Lindqvist (1981 ▸).