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Bis(triphenylphosphine)platinum chloride

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.[3] 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.

Bis(triphenylphosphine)platinum chloride[1]
Names
Other names
cis-dichlorbis(triphenylphosphine)platinum(II)
Identifiers
  • 15604-36-1
3D model (JSmol)
  • ionic form: Interactive image
  • coordination form: Interactive image
  • 6102097
  • 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
  • ionic form: 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
  • coordination form: Cl[Pt-2](Cl)([P+](c0ccccc0)(c0ccccc0)(c0ccccc0))[P+](c0ccccc0)(c0ccccc0)(c0ccccc0)
Properties
C36H30Cl2P2Pt
Molar mass 790.57 g·mol−1
Appearance white solid
Hazards
GHS labelling:
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Bis(triphenylphosphine)platinum chloride[2]
Names
Other names
trans-dichlorbis(triphenylphosphine)platinum(II)
Identifiers
  • 14056-88-3
Properties
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).

Preparation Edit

The cis isomer is the prepared by heating solutions of platinum(II) chlorides with triphenylphosphine. For example, starting from potassium tetrachloroplatinate:

K2PtCl4 + 2 PPh3cis-Pt(PPh3)2Cl2 + 2 KCl

The trans isomer is the prepared by treating potassium trichloro(ethylene)platinate(II) (Zeise's salt) with triphenylphosphine:[3]

KPt(C2H4)Cl3 + 2 PPh3trans-Pt(PPh3)2Cl2 + KCl + C2H4

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.[2] In trans-bis(triphenylphosphine)platinum chloride, the Pt-P distance is 2.316 Å and the Pt-Cl distance is 2.300 Å.[1]

The complex also undergoes photoisomerization.

 

See also Edit

References Edit

  1. ^ a b M. H. Johansson; S. Otto (2000). "trans-Dichlorobis(triphenylphosphine-P)platinum(II)". Acta Crystallogr. C. 56: e12–e15. doi:10.1107/S010827019901608X.
  2. ^ a b H.-K. Fun; S. Chantrapromma; Y.-C. Liu; Z.-F. Chen; H. Liang (2006). "cis-Dichlorobis(triphenylphosphine-κP)platinum(II)". Acta Crystallogr. E. 62 (6): m1252–m1254. doi:10.1107/S1600536806016540.
  3. ^ a b Hsu, C. Y.; Leshner, B. T.; Orchin, M. (1979). "Trans Phosphine Complexes of Platinum(II) Chloride". Inorganic Syntheses. pp. 114–116. doi:10.1002/9780470132500.ch25. ISBN 9780470132500. {{cite book}}: |journal= ignored (help)

triphenylphosphine, platinum, chloride, metal, phosphine, complex, with, formula, ptcl2, c6h5, trans, isomers, known, isomer, white, crystalline, powder, while, trans, isomer, yellow, both, isomers, square, planar, about, central, platinum, atom, isomer, used,. 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 3 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 Bis triphenylphosphine platinum chloride 1 NamesOther names cis dichlorbis triphenylphosphine platinum II IdentifiersCAS Number 15604 36 13D model JSmol ionic form Interactive imagecoordination form Interactive imagePubChem CID 6102097InChI 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 2Key XAFJSPPHVXDRIE UHFFFAOYSA LSMILES ionic form 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 Clcoordination form Cl Pt 2 Cl P c0ccccc0 c0ccccc0 c0ccccc0 P c0ccccc0 c0ccccc0 c0ccccc0 PropertiesChemical formula C 36H 30Cl 2P 2PtMolar mass 790 57 g mol 1Appearance white solidHazardsGHS labelling PictogramsSignal word WarningHazard statements H315 H319 H335Precautionary statements P261 P264 P271 P280 P302 P352 P304 P340 P305 P351 P338 P312 P321 P332 P313 P337 P313 P362 P403 P233 P405 P501Except 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 2 NamesOther names trans dichlorbis triphenylphosphine platinum II IdentifiersCAS Number 14056 88 3PropertiesChemical formula C 36H 30Cl 2P 2PtMolar mass 790 57 g mol 1Appearance yellow solidExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox referencesPreparation EditThe cis isomer is the prepared by heating solutions of platinum II chlorides with triphenylphosphine For example starting from potassium tetrachloroplatinate K2PtCl4 2 PPh3 cis Pt PPh3 2Cl2 2 KClThe trans isomer is the prepared by treating potassium trichloro ethylene platinate II Zeise s salt with triphenylphosphine 3 KPt C2H4 Cl3 2 PPh3 trans Pt PPh3 2Cl2 KCl C2H4With 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 A and the average Pt Cl has a bond distance of 2 346 A 2 In trans bis triphenylphosphine platinum chloride the Pt P distance is 2 316 A and the Pt Cl distance is 2 300 A 1 The complex also undergoes photoisomerization See also EditBis triphenylphosphine palladium II chloride Bis triphenylphosphine nickel II chlorideReferences Edit a b M H Johansson S Otto 2000 trans Dichlorobis triphenylphosphine P platinum II Acta Crystallogr C 56 e12 e15 doi 10 1107 S010827019901608X a b H K Fun S Chantrapromma Y C Liu Z F Chen H Liang 2006 cis Dichlorobis triphenylphosphine kP platinum II Acta Crystallogr E 62 6 m1252 m1254 doi 10 1107 S1600536806016540 a b Hsu C Y Leshner B T Orchin M 1979 Trans Phosphine Complexes of Platinum II Chloride Inorganic Syntheses pp 114 116 doi 10 1002 9780470132500 ch25 ISBN 9780470132500 a href Template Cite book html title Template Cite book cite book a journal ignored help Retrieved from https en wikipedia org w index php title Bis triphenylphosphine platinum chloride amp oldid 1171738769, wikipedia, wiki, book, books, library,

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