Über Osmiumbromide

On Osmiumbromides OsBr₄ was obtained by reaction of OsCl₄ with bromine in a closed system at 330°C and 120 bar Br₂ pressure. The compound crystallizes orthorhombic (a = 633.99(18) pm; b = 1 210.92(16) pm; c = 1 461.5(10) pm; Z = 8; space group Pbca) in a TcCl₄ type structure. OsBr₆ octahedra are connected by two common edges to \documentclass{article}\pagestyle{empty}\begin{document}${}_\infty ^1 \left[ {{\rm OsBr}_{{{\rm 2} \mathord{\left/ {\vphantom {{\rm 2} 1}} \right. \kern-\nulldelimiterspace} 1}} {\rm Br}_{{{\rm 4} \mathord{\left/ {\vphantom {{\rm 4} 2}} \right. \kern-\nulldelimiterspace} 2}} } \right]$\end{document} chains with a cis arrangement of the two non-bridging Br atoms. Mixed crystals OsBr_xCl_4?x(0 < x < 2.3) with CsCl₄ type structure are formed by reactions at lower Br₂ pressure up to 12 bar. They are built up from chains consisting of edge-sharing octahedra. The terminal atoms have a trans arrangement. Attempts to synthesize single crystals of OsBr₃ by decomposition of OsBr₄ resulted in formation of three different phases OsBr_x (3 < x < 4).     

Über Eisengallustinte

On Iron Gallic Ink From Iron(III) chloride and gallic acid in gels single crystals could be obtained which will be the dye-stuff of iron gallic ink. The structure consists of a hexagonal iron gallic acid 1:1 framework. The oxidation state three of the iron could be confirmed by Mössbauer and XANES spectroscopy.     

Über Lanthanorthovanadat

Crystallographic data for LaVO₄ are given. Also the infrared and Raman spectra are reported and discussed with the aid of a “factor group analysis”.     

Über Pentafluorphenylthio-Metallkomplexe

The compounds M(CO)₅ · THF (M = Cr, Mo, W) react with sodium mercaptide, NaSR (R = C₆F₅, C₆H₅, C₂H₅), to give the mercapto-pentacarbonylmetallate anions [M(CO)₅ · · SR]^?. The preparation of some pentafluorophenylthio complexes, e. g. [(C₆H₅)₃P]₂MSC₆F₅(M = Cu, Ag, Au), [(C₆H₅)₃P]₂Hg(SC₆F₅)₂, is reported.     

Über kristalline Natriumhydroxogallate

About Crystalline Sodium Hydroxogallates Two crystalline sodium hydroxogallates 4,5 Na₂O · Ga₂O₃ · 13,5 H₂O ( I ) and 5 Na₂O · Ga₂O₃ · 8 H₂O ( II ), as well as a crystalline phase of the composition Na₂O · Ga₂O₃ · 4 H₂O · 2 NaCl ( III ) are described.     

Über 3d-Element-Aroxide

On 3d-Element Aroxides THF adducts of CuCl₂, CoCl₂, and CrCl₃ react with phenol, substituted phenols, and 2-naphthol in presence of NaNH₂ or triethylamine giving the corresponding metal aroxides. Cu(OC₆H₅)₂ · DMF and Fe(OC₆H₅)₂ · DMF are electrochemical synthesized. The magnetic, spectroscopic, and thermal behaviour of these compounds have been investigated.     

Über 1,3,2-Benzoxathiaborole

On 1,3,2-Benzoxythioborols 2-Mercapto-4-methoxyphenol reacts with BCl₃ giving the 2-Chloro-5-methoxy-1,3,2-benzoxythioborol. This compound reacts with phenol, thiophenol, 2-mercapto-4-methoxyphenol, sec. amines, lithium butyl and lithium phenyl and the corresponding 2-substituted products are obtained. With sodium two borol rings are connected resulting a boron-boron bond. The Lewis-acid behaviour of some of this compounds is investigated.     

Über chirale Methylzinkaminoalkoxide

Chiral Methylzinc Amino Alkoxides Dimethylzinc reacts with (S)‐N‐methylpyrrolidinyl‐2‐methanol, (R/S)‐1‐phenyl‐2‐(N‐methylamino)‐ethanol, and (S)‐α,α‐diphenyl‐2‐pyrrolidinyl‐2‐methanol in molar ratio 1 : 1 with formation of the corresponding methylzinc amino alkoxides 1 – 3 . As a consequence of the Zn–N‐interaction new centres of chirality containing asymmetric surrounded N‐atoms are formed. Compounds 1 – 3 were characterized by their ¹H and ¹³C nmr spectra. The crystal structures of 1 – 3 were determined by single crystal structur analysis. 1 and 2 are trimeric in solid state, 3 is forming dimeric molecules.     

Über das kubische Vanadiummonoxid

Reinvestigation of the homogeneity range of the cubic vanadium monoxide phase showed that this oxide exhibits two closely related phase sections (VO_0.86 to VO_0.91,and VO_1.05 to VO_1.25) divided by a miscibility gap. This largely confirms observations of VOL'F et al.