131904-09-1

Basic information

• Product Name: Pt(P(C₆H₅)2(CH₂)2P(C₆H₅)2)OC(CH₃)2C(CH₃)2O
• CAS NO: 131904-09-1
• Molecular Weight: 709.664
• Mol File: 131904-09-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Pt(P(C₆H₅)2(CH₂)2P(C₆H₅)2)OC(CH₃)2C(CH₃)2O(CAS DataBase Reference)
• NIST Chemistry Reference: Pt(P(C₆H₅)2(CH₂)2P(C₆H₅)2)OC(CH₃)2C(CH₃)2O(131904-09-1)
• EPA Substance Registry System: Pt(P(C₆H₅)2(CH₂)2P(C₆H₅)2)OC(CH₃)2C(CH₃)2O(131904-09-1)

Safety Data

• Hazardous Substances Data: 131904-09-1(Hazardous Substances Data)

Upstream product

• 83095-83-4 [platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)] 

Downstream Products

• 25398-76-9 [platinum⁽⁰⁾bis(1,2-bis(diphenylphosphino)ethane)] 
• 66467-56-9 PtH₂(dppe) 

Relevant articles and documents

Mechanistic studies of the thermolytic and photolytic rearrangement of [bis(diphenylphosphino)ethane]bis(neophyl)platinum(II)

Comparative mechanistic studies are presented of the thermolytic and photolytic behavior of the bis-(neophyl)platinum(II) derivative Pt(CH2CMe2Ph)2(dppe) (neophyl = 2-methyl-2-phenylpropyl; dppe = 1,2-bis(diphenylphoephino)ethane). Thermolytic rearrangement is less facile than for monodentate P-donor analogues and affords the platinaindan Pt(2-C6H4CMe2CH2)(dppe) by intramolecular aromatic C-H activation and H-transfer to eliminated tert-butylbenzene. The kinetic isotope effect on metallacyclization (kobsH/kobsD = 2.40) and the negative activation entropy (ΔS≠obs = -13 (±4) J·K-1·mol-1) suggest a pathway in which scission of one Pt-P is mechanistically significant but C-H addition to Pt has the most energetic transition state. Photolytic rearrangement in toluene-d0 proceeds by two major paths, both of which involve primary Pt-C homolysis. The resultant neophyl radical may then provide a destination for migrating hydrogen in a cyclometalation of the residual 17-electron organoplatinum species, leading to Pt(2-C6H4CMe2CH2)(dppe). Alternatively, H-abstraction by the neophyl fragment within the solvent cage produces a benzyl radical which recombines with the metal moiety to give Pt(CH2Ph)(CH2Me2Ph)(dppe). This benzylplatinum complex is also photolabile, giving ultimately platinaindan via benzyl radical expulsion. This indirect solvent metalation is not evident during photolysis in toluene-d8 and in benzene.