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metal-organic compounds
The crystal structure of the title compound, [Ti(C11H19NSi)Cl2], has been determined as part of a broad investigation of half-sandwich titanium complexes. Titanium has a pseudo-tetrahedral coordination formed by two Cl atoms [Ti—Cl = 2.2719 (4) and 2.2730 (4) Å], the N atom of the N-tert-butyl group [Ti—N = 1.9094 (12) Å] and the silyl-substituted Cp ligand [metal–Cp ring centroid distance = 2.0185 (9) Å]. The tert-butyl group was found to be disordered.
inorganic compounds
Single crystals of the LaMg2 cubic Laves phase were synthesized by arc melting. The binary LaMg2 compound has been shown to adopt the MgCu2-type structure. The coordination sphere of the rare earth metal, adopting a site symmetry of 
, consists only of 12 Mg atoms. The site symmetry of the alkaline earth metal is 
, giving rise to superimposed distorted MgLa6 and MgMg6 octahedra.
, consists only of 12 Mg atoms. The site symmetry of the alkaline earth metal is 
, giving rise to superimposed distorted MgLa6 and MgMg6 octahedra.inorganic compounds
(NH4)2[Co(H2O)6]3(HPO3)4 is a member of the isotypic (NH4)2[T(H2O)6]3(HPO3)4 family, where T = Co, Ni or Mg. The structure of (NH4)2[Co(H2O)6]3(HPO3)4 is composed of the units [Co(H2O)6]2+, (HPO3)2- and NH4+, which interact via an intricate network of hydrogen bonds. One of the Co atoms is located at a site of 2/m symmetry, whereas the other central atoms, viz. the second Co, the two P and ammonium N atom, are located at sites of m symmetry.
inorganic compounds
(NH4)2[Ni(H2O)6]3(HPO3)4 is a member of the isotypic (NH4)2[T(H2O)6]3(HPO3)4 family, where T = Co, Ni or Mg. The structure of (NH4)2[Ni(H2O)6]3(HPO3)4 is composed of the units [Ni(H2O)6]2+, (HPO3)2- and NH4+, which interact via an intricate network of hydrogen bonds. One of the Ni atoms is located at a site of 2/m symmetry, whereas the other central atoms, viz. the second Ni, the two P and ammonium N atom, are located at sites of m symmetry.
