Bis(triphenylphosphine)platinum chloride
2Cl2.png) |
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| Names | |
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| Other names
cis-dichlorbis(triphenylphosphine)platinum(II)
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| Identifiers | |
| Properties | |
| C36H30Cl2P2Pt | |
| Molar mass | 790.57 g·mol−1 |
| Appearance | white solid |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
2Cl2.png) |
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| Names | |
|---|---|
| Other names
trans-dichlorbis(triphenylphosphine)platinum(II)
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| Identifiers | |
| Properties | |
| C36H30Cl2P2Pt | |
| Molar mass | 790.57 g·mol−1 |
| Appearance | yellow solid |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Bis(triphenylphosphine)platinum chloride is a metal phosphine complex with the formula PtCl2[P(C6H5)3]2. Cis- and trans isomers are known. The cis isomer is a white crystalline powder, while the trans isomer is yellow. Both isomers are square planar about the central platinum atom. The cis isomer is used primarily as a reagent for the synthesis of other platinum molecules.
The cis isomer is the prepared by heating solutions of platinum(II) chlorides with triphenylphosphine. For example, starting from potassium tetrachloroplatinate:
The trans isomer is the prepared by treating potassium trichloro(ethylene)platinate(II) (Zeise's salt) with triphenylphosphine:
Heat or excess phosphine ligand causes the trans isomer to isomerize to the white cis complex. The latter complex is the thermodynamic product due to triphenylphosphine being a strong trans effect ligand.
In cis-bis(triphenylphosphine)platinum chloride, the average Pt-P has a bond distance of 2.261 Å and the average Pt-Cl has a bond distance of 2.346 Å.
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