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ON THE THERMAL-DECOMPOSITION OF HYDRAZINIUMPENTAFLUOROMETALLATES N2H6MF5 OF IRON, VANADIUM AND ALUMINUM

被引：5
作者：
BENTRUP, U
机构：
[1] Zentrum Für Anorganische Polymere, Berlin, O‐1199
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1993年 / 619卷 / 05期
关键词：
HYDRAZINIUMPENTAFLUOROFERRATE; HYDRAZINIUMPENTAFLUOROVANADATE; HYDAZINIUMPENTAFLUOROALUMINATE; THERMAL DECOMPOSITION; THERMAL ANALYSIS; IR;
D O I：
10.1002/zaac.19936190525
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The thermal decomposition of the hydraziniumpentafluorometallates of N2H6FeF5, N2H6VF5 and N2H6AlF5 has been investigated by thermoanalytical, X-ray and i.r. spectroscopic methods. The thermal decomposition leads to ammonium compounds forming in consequence of disproportionation of the hydrazinium cation into ammonia and nitrogen. Under quasi-isobaric conditions a multistage decomposition mechanism has been detected. No hydrolysis reactions have been observed. In the iron system a partial reduction of Fe(III) takes place. Consequently NH4Fe2F6 is formed which decomposes via (NH4)1-xFeF4-x (x = 0.6-0.8) with HTB-structure into FeF3 and FeF2. In the aluminium and vanadium system the formation of tetragonal (NH4F)y . MF3-phases (y = 0.2-0.8) as intermediates has been observed. Final products of decomposition are VF3 and alpha-AlF3.
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收藏
页码：954 / 960
页数：7
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