THE ACTION OF LIQUID AMMONIA SOLUTIONS OF AMMONIUM SALTS ON METALLIC BERYLLIUM. AMMONATED BERYLLIUM HALIDES AND AMMONOBASIC BERYLLIUM SALTS

1928 ◽  
Vol 50 (3) ◽  
pp. 657-662 ◽  
Author(s):  
F. W. Bergstrom
Keyword(s):  
Liquid Ammonia ◽  
Ammonium Salts

Precursors of Titanium Carbonitride

1986 ◽  
Vol 73 ◽  
Author(s):  
L. Maya
Keyword(s):  
Liquid Ammonia ◽  
Mixed Valence ◽  
Reaction Medium ◽  
Ceramic Materials ◽  
Titanium Content ◽  
Alkali Metal Halide ◽  
Ammonium Salts ◽  
Titanium Carbonitride ◽  
Ammonium Ion ◽  
Synthetic Approach

ABSTRACTA series of novel compounds was isolated in the course of exploratory work on the chemistry of titanium halides in liquid ammonia. This work was undertaken to study synthetic approaches to titanium-containing precursors of ceramic materials. Representative of these compounds is a mixed valence Ti(III)-Ti(IV) tetramer, [NH4+·NH3]2[Ti4Br4 (NH2)12]−2, which was produced by the reaction of potassium borohydride and titanium IV bromide in liquid ammonia at room temperature. Similar ammonium salts of either Ti(IV) or Ti(III) were also prepared. The reaction of the ammonium salts with sodium acetylide in liquid ammonia evolves acetylene in an amount equivalent to the ammonium ion present. This provided the charge of the complex and yielded novel titanium acetylide derivatives. The acetylides convert into titanium carbonitrides upon thermal treatment to 800°C.The reaction of titanium halides of their ammonolytic products with sodium acetylide in liquid ammonia to yield halogen-free acetylide precur-sors having a relatively high titanium content appears to be a convenient synthetic approach. This is made possible by the fact that the alkali metal halide by-products are soluble and easily separated in that reaction medium. This approach appears to be a generalized route applicable to a number of transition metal elements of interest.

Preparation and crystal structures of the beryllium ammines [Be(NH3)4]X2 (X = Br, I, CN, SCN, N3) and Be(NH3)2X'2 (X' = Cl, Br, I)

2019 ◽  
Vol 55 (91) ◽  
pp. 13649-13652 ◽  
Author(s):  
Matthias Müller ◽  
Magnus R. Buchner
Keyword(s):  
Solid State ◽  
Crystal Structures ◽  
Liquid Ammonia ◽  
Ammonium Salts ◽  
Ammine Complexes ◽  
Pseudo Halides

Ammine complexes of beryllium halides and pseudo-halides have been synthesized through the reaction of metallic beryllium with ammonium salts in liquid ammonia or in the solid state.

Ammonolysis of titanium tetrachloride in liquid ammonia

1976 ◽  
Vol 73 ◽  
pp. 849-851 ◽  
Author(s):  
Thomas Kottarathil ◽  
Gérard Lepoutre
Keyword(s):  
Liquid Ammonia ◽  
Titanium Tetrachloride

Access to Fe(II) Bis(σ-B-H) Aminoborane Complexes via Protonation of a Borohydride Complex and Dehydrogenation of Amine-Boranes

2019 ◽  
Author(s):  
Nikolaus Gorgas ◽  
Berthold Stöger ◽  
Luis F. Veiros ◽  
Karl Kirchner
Keyword(s):  
Structural Characterization ◽  
Ammonium Salts ◽  
Iron Based ◽  
Amine Boranes

We report on the first synthesis and structural characterization of the iron based aminoborane complexes. These species are formed upon protonation of a borohydride complex by ammonium salts.<br>

Solubility of argon, and gaseous mixture argon-methane-nitrogen in liquid ammonia

1970 ◽  
Vol 35 (12) ◽  
pp. 3757-3761 ◽  
Author(s):  
J. Matouš ◽  
J. Šobr ◽  
J. P. Novák
Keyword(s):  
Liquid Ammonia ◽  
Gaseous Mixture

Preparation, properties and structure of some intermediate nido- and arachno-monocarbaboranes

1981 ◽  
Vol 46 (10) ◽  
pp. 2345-2353 ◽  
Author(s):  
Karel Baše ◽  
Bohumil Štíbr ◽  
Jiří Dolanský ◽  
Josef Duben
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Nmr Spectra ◽  
Liquid Ammonia ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Starting Compound

The 6-N(CH3)3-6-CB9H11 carbaborane reacts with sodium in liquid ammonia with the formation of 6-CB9H12- which was used as a starting compound for preparing the 4-CB8H14, 9-L-6-CB9H13 (L = (CH3)2S, CH3CN and P(C6H5)3), 1-(η5-C5H5)-1,2-FeCB9H10-, and 2,3-(η5-C5H5)2-2,31-Co2CB9H10- carboranes. The 4-CB8H14 compound was dehydrogenated at 623 K to give 4-(7)-CB8H12 carborane. Base degradation of 6-N(CH3)3-6-CB9H11 in methanol resulted in the formation of 3,4-μ-N(CH3)3CH-B5H10. The structure of all compounds was proposed on the basis of their 11B and 1H NMR spectra and X-ray diffraction was used in the case of the transition metal complexes.

Sign in / Sign up

Export Citation Format

Share Document