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首页> 外文期刊>Journal of Fluorine Chemistry >Synthesis of NF2Cl and NFCl2 using NH4F/nHF and ClF3
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Synthesis of NF2Cl and NFCl2 using NH4F/nHF and ClF3

机译：使用NH4F / NHF和CLF3合成NF2Cl和NFCL2

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摘要

Reactions between NH4F/nHF and gaseous ClF3 were examined at temperatures of 280320 K under various n-values (n = 2.2, 2.3, 2.4, 2.7, 2.8, 3.0, 3.1, and 4.0) at which NH4F/nHF was a molten salt, with three ClF3 gas flow rates (20, 50 and 100 standard cc min(-1)). From a direct reaction, NF2Cl and NFCl2 gases were obtained as products. With high NF2Cl and NFCl2 selectivity for N-2, such as higher than 90% selectivity as the nitrogen containing molecule base at temperatures below 298?K, an n value of around 2.22.3 was obtained. The selectivity of NF2Cl and NFCl2 decreased to less than 70% at temperatures higher than 318 K because of increased amounts of N-2 by-product. High selectivity of NF2Cl and NFCl2 were obtainable with the reaction mechanism in which [NH3ClF2](+)(FH)nF- is formed as an intermediate.
机译：在280320k的温度下在不同n值（n = 2.2,2.3,2.4,2.7,2.8,3.0,3.1和4.0）的温度下在280320k的温度下检查NH 4 F / NHF和气态CLF3的反应，其中NH4F / NHF是熔盐， 具有三种CLF3气流速率（20,50和100标准CC min（-1））。 从直接反应中，将NF2Cl和NFCL2气体作为产物获得。 具有高NF2Cl和NFCL2的NFCL2选择性，例如高于90％的选择性，作为含氮的分子基质在低于298·k的温度下，得到N值为2.22.3。 由于N-2副产物的量增加，NF2Cl和NFCL2的选择性降低至小于318k的温度低于318k。 NF2Cl和NFCL2的高选择性可用于反应机制，其中[NH3ClF2]（+）（FH）NF-形成为中间体。

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