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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >The courses of the ammonolyses of the ammonium hexafluorometalates of aluminum, gallium, and indium, (NH4)(3)MF6 (M = Al, Ga, In) [German]
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The courses of the ammonolyses of the ammonium hexafluorometalates of aluminum, gallium, and indium, (NH4)(3)MF6 (M = Al, Ga, In) [German]

机译：铝，镓和铟的六氟金属铵铵（NH4）（3）MF6（M = Al，Ga，In）的氨解过程[德国]

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摘要

The courses of the ammonolysis reactions of the ammonium hexafluorometalates (NH4)(3)MF6 (M = Al, Ga, In) were investigated with the aid of in-situ powder diffractometry and differential thermal analysis. Under these conditions, the reaction of (NH4)(3)AlF6 With gaseous ammonia yields at about 360 degrees C AlF3 via the intermediates NH4AlF4, Al(NH3)(2)F-3 and Al(NH3)F-3. The ammonolysis of (NH4)(3)GaF6 produces GaN at about 400 degrees C. Depending upon the actual reaction conditions, the intermediates NH4GaF4 and Ga(NH3)F-3 as well as their ammonia adducts NH4GaF4. NH3 and Ga(NH3)(2)F-3 and the amide-ammoniate Ga(NH3)(NH2)F-2 are observed. In the case of (NH4)(3)InF6 the intermediates (NH4)(3)InF6. NH3 and In(NH3)F-3 may exist; there are also indications for the reduction of In(III) to In(I) and for the existence of In(NH3)(2)F and InF as products of the ammonolysis of (NH4)(3)InF6. [References: 21]
机译：借助原位粉末衍射法和差热分析，研究了六氟金属铵（NH4）（3）MF6（M = Al，Ga，In）的氨解反应过程。在这些条件下，（NH4）（3）AlF6与气态氨的反应通过中间体NH4AlF4，Al（NH3）（2）F-3和Al（NH3）F-3在约360°C下生成AlF3。 （NH4）（3）GaF6的氨解在约400摄氏度下产生GaN。根据实际反应条件，中间体NH4GaF4和Ga（NH3）F-3以及它们的氨加合物NH4GaF4。观察到NH3和Ga（NH3）（2）F-3和酰胺基的Ga（NH3）（NH2）F-2。在（NH4）（3）InF6的情况下，中间体（NH4）（3）InF6。可能存在NH3和In（NH3）F-3;也有迹象表明In（III）还原为In（I），并且存在作为（NH4）（3）InF6氨解产物的In（NH3）（2）F和InF的存在。 [参考：21]

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