三苯基二氯化膦

{{chembox
| Watchedfields = changed
| verifiedrevid = 430032953
| Name = 三苯基二氯化膦
| ImageFile = Dichlorotriphenylphosphine-2D.png
| ImageSize = 150px
| ImageName = Structural formula
| ImageFileL1 = Dichlorotriphenylphosphine-molecular-from-xtal-1998-3D-balls.png
| ImageNameL1 = Ball-and-stick model
| ImageFileR1 = Dichlorotriphenylphosphine-molecular-from-xtal-1998-3D-vdW.png
| ImageNameR1 = Space-filling model
| IUPACName = Dichlorotriphenyl-λ5-phosphane
| OtherNames =Dichlorotriphenylphosphorane
|Section1=
|Section2={{Chembox Properties
| Formula = C18H15Cl2P
| MolarMass = 333.19
| Appearance =
| Density =
| Solubility = 反应
| MeltingPtC = 176
| Melting_notes= 85-100 °C

结构
在乙腈等极性溶剂中，Ph3PCl2以鏻盐 [Ph3PCl+]Cl−形式存在，而在乙醚等非极性溶剂中则以三角双锥分子存在。两个[Ph3PCl+]离子可以和一个Cl−离子通过Cl–Cl相互作用连接。

File:Chlorotriphenylphosphonium-chloride-2D.png
File:Chlorotriphenylphosphonium-chloride-DCM-solvate-from-xtal-3D-balls.png
File:Chlorotriphenylphosphonium-chloride-DCM-solvate-from-xtal-3D-vdW.png

合成
三苯基二氯化膦通常通过氯气和三苯基膦的加成反应制备：
:Ph3P + Cl2 → Ph3PCl2

两种反应物都使用它们的溶解，以保证正确的计量比。

参考资料