Chloride ammino preparation

Werner and Kling 1 found that two such isomers can be obtained from the m-salt of type [M(NII3)4R2]R. They prepared the compounds l-chloro-2-ammino-diethylenediamino-cobaltie chloride, 1 Werner and Kling, Ber., 1911, 44, 1887 1912, 45, 3287. 

Lithium bromide also combines with gaseous ammonia to form four solid deliquescent substances. The monammine, [Li(NH3)]Br, is formed above 95° C. the diammine, [Li(NIi3)2]Br, between 87° and 95° C. the triammine, [Li(NH3)3]Br, between 71° and 87° C. and the tetrammine about —18° C.2 Ephraim prepared other ammino-salts of lithium, as, for example, tetrammino-lithium nitrate, [Li(NH3)J(N03), which is a colourless syrup at ordinary temperature and is more stable than the chloride tetrammino-lithium chlorate, [Li(NII3)Ll]C103, which is a fairly mobile liquid and tetrammino-lithium perchlorate, [Li(NH3)4]C104, a white solid which liquefies and decomposes at ordinary temperature.3... 

Ammino-zinc Iodides.—These are prepared in the same way as those of zinc chloride. Pentammino-zinc iodide, [Zn(NH3)5]X2, and hc.mmmino-zinc iodide, [Zn(NH3)G I2, are easily obtained. 

Diammino-uranyl Bromide, [U02(XH3)2]Br2, is prepared by passing ammonia gas through a solution of uranyl bromide in amyl alcohol till the solution is decolorised and a flocculent yellow precipitate is produced on drying in vacuo the substance is obtained as a yellow amorphous powder, hr properties it resembles the chloride. An ether derivative, of composition [UO2(XH3)2]Cl2.C2H100, is formed if ammonia is passed into an ethereal solution of uranyl bromide. Tri-ammino-uranyl bromide, [U02(XH3)3]Br2, and tetrammino -uranyl bromide, [U02(XH3)4]Br2, are prepared by an analogous method to that for the preparation of the corresponding chlorides, and the properties are similar. 

The first compound of the ammino-rhodium series examined was chloro-pentammino-rhodium chloride, [Rh(NH3)5Cl]Cl2, which vras prepared by treating rhodium trichloride with ammonia. Claus 1 investigated the composition of the substance and prepared from it, by means of moist silver oxide, a strongly basic substance, which proved to be the corresponding hydroxide, [Rh(NH3)5Cl](OH)2. 

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