111848-25-0

Basic information

• Product Name: {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾
• Synonyms: {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾
• CAS NO: 111848-25-0
• Molecular Weight: 795.928
• Mol File: 111848-25-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾(CAS DataBase Reference)
• NIST Chemistry Reference: {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾(111848-25-0)
• EPA Substance Registry System: {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾(111848-25-0)

Safety Data

• Hazardous Substances Data: 111848-25-0(Hazardous Substances Data)

Usage

General Description

{bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾ is a coordination compound containing a platinum atom in the zero oxidation state. The compound consists of two ligands, bis(dicyclohexylphosphino)ethane and diphenylacetylene, which coordinate to the platinum center. The bis(dicyclohexylphosphino)ethane ligand contains two phosphorus atoms that each donate a pair of electrons to the platinum atom, while the diphenylacetylene ligand also coordinates to the platinum center through its carbon atoms. {bis(dicyclohexylphosphino)ethane}(diphenylacetylene)platinum⁽⁰⁾ is commonly used in organic synthesis and catalysis due to its ability to facilitate various chemical reactions, particularly those involving carbon-carbon bond formation. Additionally, its zero oxidation state makes it a useful catalyst for a range of organic transformations.

Upstream product

• 75982-94-4 Pt(1,5-cyclooctadiene)(η(2)-diphenylacetylene) 
• 23743-26-2 1,2-bis-(dicyclohexylphosphino)ethane 
• 501-65-5 diphenyl acetylene 
• 12130-66-4 bis(cycloocta-1,5-diene)platinum⁽⁰⁾ 

Downstream Products

• 373391-87-8 (bis(dicyclohexylphosphino)ethane)PtPh(CCPh) 
• 425-32-1 1,1,2,2-tetrafluoro-1,2-diphenylethane 
• 20488-54-4 trans-1,2-difluoro-1,2-diphenylethylene 
• 20488-55-5 cis-α,α'-difluorostilbene 

Relevant articles and documents

Reactivity of platinum alkyne complexes towards N-fluorobenzenesulfonimide: formation of platinum compounds bearing a β-fluorovinyl ligand

The platinum(0) alkyne complexes [Pt(L)(η2-PhC≡CPh)] 1-4 were synthesized by reactions of [Pt(cod)2] with diphenylacetylene and a phosphine ligand precursor (1: L = dcpe, 2: L = xantphos, 3: L = κ2-(P,N)-iPr2PC

Activation of the C-H Bonds of Benzene by Reaction with platinum(0), Generated by the Thermolysis of cis-hydridoneopentylplatinum(II)

Reductive elimination of neopentane from cis-hydridoneopentylplatinum(II) (1) generates the reactive intermediate platinum(0) (2), which forms cis-hydridophenylplatinum(II) (3) upon reaction with benzene.The rate-determining step is reductive elimination of neopentane: Ea = 28.0 (0.4) kcal/mol, log A = 14.3 (0.2), ΔG(excit.)(69 deg C) = 25.7 (0.7) kcal/mol, ΔH(excit.)(69 deg C) = 27.3 (0.3) kcal/mol, and ΔS(excit.)(69 deg C) = 5 (1) eu.Kinetic and spectroscopic studies rule out coordination of benzene to the platinum center before or during the transition state.Variable-temperature NMR studies establish that the bis(phosphine) ligand remains chelated to the platinum atom during reductive elimination.The presumed intermediate, 2, can be trapped by dipenylacetylene and bis(dicyclohexylphosphino)ethane as (diphenylacetylene)platinum(0) (4) and bisplatinum(0) (5), respectively.The X-ray crystal structure of 1 is reported.The compound crystallizes in space group C52h-P21/n of the monoclinic system with 4 molecules in a cell of dimensions a = 11.517 (8), b = 15.730 (11), c = 17.364 (13) Angstroem, and β = 90.32 (3) deg.The structure has been refined to an agreement index R(F02) of 0.069 for 311 variables and 10182 observations.The Pt center has its expected pseudo-square-planar coordination with a Pt-H distance of 1.56 (5) Angstroem.