Cover illustration: Part of the crystal structure of 2-amino-3-hydroxy-4-phenylthiazolium chloride, showing the formation of a chain of edge-fused R42(11) rings along the b axis. For clarity, H atoms bonded to C atoms have been omitted. See Glidewell, Low, Skakle & Wardell [Acta Cryst. (2004), C60, o273-o275].
The structure of the synthetic trioctahedral mica potassium triiron(II) aluminasilaferrate(III) decaoxide dihydroxide, KFeII3(Al0.26FeIII0.76Si3)O10(OH)2, has been determined using single-crystal X-ray diffraction data measured at 270 and 100 K.
The two novel title compounds, Rb2[CrCl5(H2O)] and Cs2[CrCl5(H2O)], are structurally distinct, with pseudo-cubic and pseudo-octahedral coordinations, respectively, of alkali ions around the chromate complexes.
The crystal structures of the tri- and tetrahydrate of tin tetrachloride are reported and discussed. The trihydrate contains chains of the tin species linked by a single hydrogen-bonded water molecule, whilst the tetrahydrate has a three-dimensional network. In addition, there are O—H⋯Cl interactions present.