Kristallstrukturen von Na3TiCl6 und K3TiCl6

Ternary Halides of the Type A₃MX₆. IX Crystal Structures of Na₃TiCl₆ and K₃TiCl₆ Light yellow single crystals of Na₃TiCl₆ and K₃TiCl₆ are obtained from the binary components, TiCl₃ and NaCl and KCl, respectively, in 1 : 3 molar ratios. Na₃TiCl₆ crystallizes with the cryolite type of structure (monoclinic, P2₁/n, Z = 2, a = 668,02(8), b = 709,13(6), c = 981,38(12) pm, β = 90,31(2)°) while K₃TiCl₆ belongs to the K₃MoCl₆ type of structure (monoclinic, P2₁/c, Z = 4, a = 1261,6(2), b = 751,36(8), c = 1210,7(2) pm, β = 108,30(2)°).     

Solid-Phase Synthesis of Thio-oligosaccharides

No protecting groups are present in the highly reactive polymer-bound sugar 1-thiolates 1 , which undergo reactions with sugar triflates 2 to give thio-oligosaccharides 3 in high yield. Tr=trityl=triphenylmethyl, Tf=trifluoromethylsulfonyl, Bz=benzoyl.     

Chlorobis(nitrato‐O,O')(tetraethylene glycol dimethyl ether)neodymium(III), [NdCl(NO3)2(tetraglyme)]: A Novel Heteroleptic Complex

In the crystal structure of [NdCl(NO₃)₂(tetraglyme)] (triclinic, P1, Z = 2, a = 7.814(1); b = 7.9832(9); c = 15.322(2) Å; α = 87.38(1); β = 84.88(1); γ = 79.83(1)°), neodymium is ten coordinate with two transoid chelating nitrate ligands, a chlorine and the five oxygen atoms of the tetraglyme ligand in an irregular array.