Bis(triphenylphosphine)platinum dichloride

Bis(triphenylphosphine)platinum chloride

Names
Other names cis-dichlorbis(triphenylphosphine)platinum(II)
Identifiers
CAS Number	15604-36-1
3D model (JSmol)	Interactive image
PubChem CID	6102097
InChI InChI=1S/2C18H15P.2ClH.Pt/c2*1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;;;/h2*1-15H;2*1H;/q;;;;+2/p-2 Key: XAFJSPPHVXDRIE-UHFFFAOYSA-L
SMILES C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.Cl[Pt]Cl
Properties
Chemical formula	C36H30Cl2P2Pt
Molar mass	790.57 g·mol−1
Appearance	white solid
Hazards
GHS pictograms
GHS signal word	Warning
GHS hazard statements	H315, H319, H335
GHS precautionary statements	P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Bis(triphenylphosphine)platinum chloride

Names
Other names trans-dichlorbis(triphenylphosphine)platinum(II)
Identifiers
CAS Number	14056-88-3
Properties
Chemical formula	C36H30Cl2P2Pt
Molar mass	790.57 g·mol−1
Appearance	yellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 compounds.

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:

With heating or in the presence of excess PPh₃, the trans isomer converts to the 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.