查看“︁四氟化二磷”︁的源代码

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| ImageFile = Phosphor(II)-fluorid.png
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| IUPACName = 
| OtherNames = 氟化磷(II)
| NameEn = Diphosphorus tetrafluoride
|Section1={{Chembox Identifiers
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| CASNo = 13824-74-3
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| PubChem = 139615
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|Section2={{Chembox Properties
| Formula = P<sub>2</sub>F<sub>4</sub>
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| MeltingPt = {{convert|-86.5|C|K}}
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|Section8={{Chembox Related
| OtherAnions = [[四氯化二磷]]<BR>[[四碘化二磷]]
| OtherCations = [[四氟肼]]（N<sub>2</sub>F<sub>4</sub>）
| OtherFunction = 
| OtherFunction_label = 
| OtherCpds = [[二磷烷]]（P<sub>2</sub>H<sub>4</sub>）}}
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'''四氟化二磷'''是一种无机磷化合物，为[[卤化磷]]的一种，化学式为P<sub>2</sub>F<sub>4</sub>。最早于1966年制得。<ref name=Xiang>项斯芬, 严宣申, 曹庭礼 等. 无机化学丛书 第四卷 氮 磷 砷分族. 科学出版社, 2011: pp 175-176. ISBN 978-7-03-030548-0</ref>
==制备==
四氟化二磷可由PF<sub>2</sub>I和[[汞|Hg]]反应得到：<ref name=Xiang />
:<math>\mathrm{2\ PF_2I\ +\ 2\ Hg\longrightarrow\ P_2F_4\ +\ Hg_2I_2}</math>
==化学性质==
四氟化二磷对[[水]]和[[氧气]]敏感：<ref name=Xiang />
:<math>\mathrm{2\ P_2F_4\ +\ H_2O \longrightarrow\ F_2POPF_2\ +\ 2\ F_2PH}</math>
:<math>\mathrm{4\ P_2F_4\ +\ O_2 \longrightarrow\ 2\ F_2POPF_2}</math>

该化合物可用于制备二氟膦基化合物，如在[[气相]]中[[紫外光]]下和[[炔烃]]的[[三键]]反应：
<ref>J. G. Morse, J. J. Mielcarek: ''Photoreactions of tetrafluorodiphosphine with alkynes.'', in: ''Journal of Fluorine Chemistry'' '''1988''', ''40'', 41–9. {{ISSN|0022-1139}}</ref>
:[[File:Phosphor(II)-fluoridaddition.png|400px|Addition von Phosphor(II)-fluorid an ein Alkin]]

==参考文献==
{{reflist}}

{{无机磷化合物}}
{{氟化物}}
[[Category:卤化磷]]
[[Category:磷-氟化合物]]
[[category:氟化物]]
[[category:1960年代发现的物质]]