100205-76-3

Basic information

• Product Name: Re₂Cl₄(P(C₆H₅)2CH₂P(C₆H₅)2)(P(CH₃)3)2
• CAS NO: 100205-76-3
• Molecular Weight: 1050.78
• Mol File: 100205-76-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Re₂Cl₄(P(C₆H₅)2CH₂P(C₆H₅)2)(P(CH₃)3)2(CAS DataBase Reference)
• NIST Chemistry Reference: Re₂Cl₄(P(C₆H₅)2CH₂P(C₆H₅)2)(P(CH₃)3)2(100205-76-3)
• EPA Substance Registry System: Re₂Cl₄(P(C₆H₅)2CH₂P(C₆H₅)2)(P(CH₃)3)2(100205-76-3)

Safety Data

• Hazardous Substances Data: 100205-76-3(Hazardous Substances Data)

Upstream product

• 58298-10-5 [Re2Cl4(μ-bis(diphenylphosphino)methane)2] 
• 594-09-2 trimethylphosphane 
• 55333-37-4 Re₂Cl₄(P(CH₃)3)4 

Downstream Products

• 105502-44-1 Re₂Cl₄((C₆H₅)2PCH₂P(C₆H₅)2)((C₆H₅)2AsCH₂CH₂P(C₆H₅)2) 

Relevant articles and documents

Complexes of the type M2X4(LL)(LL′) that contain mixed intramolecular phosphine ligand bridges. Synthesis and characterization of β-Re2Cl4(Ph2PCH2PPh 2)(Ph2PCH2CH2PPh2) and related species

The violet dirhenium(II) complexes Re2Cl4(dppm)(dppe), Re2Cl4(dppm)(arphos), and Re2Cl4(dppa)(dppe), where dppm = Ph2PCH2PPh2, dppa = Ph2PNHPPh2, dppe = Ph2PCH2CH2PPh2, and arphos = Ph2PCH2CH2AsPh2, have been prepared by the reaction of Re2Cl4(PMe3)2(LL), where LL = dppm or dppa, with dppe or arphos in refluxing 1-butanol. Alternative synthetic strategies for Re2Cl4(dppm)(dppe) involve the reaction of Re2Cl4(PMe)4 with 2 equiv of dppm and 1 equiv of dppe and the reaction of Re2Cl4(dppm)2 with dppe. The spectroscopic and electrochemical properties of these three mixed phosphine ligand complexes are in accord with their possessing structures in which the two bidentate ligands assume a bridging transoid disposition to one another. This has been confirmed by a single-crystal X-ray structure analysis on crystals of Re2Cl4(dppm)(dppe) grown from CH2Cl2 solution. This complex crystallizes in the monoclinic space group P21/n with the following unit-cell dimensions: a = 16.985 (4) ?, b = 13.070 (6) ?, c = 22.787 (4) ?, β = 107.94 (2)°, V = 4813 (5) ?3, and Z = 4. The structure was refined to R = 0.061 (Rw = 0.080) for 3807 data with F2 > 3.0σ(F2). The structure is similar to that of β-Re2Cl4(dppe)2 and displays the same sort of disorder. It involves a trans arrangement of intramolecular dppm and dppe bridges and is the first that has been determined in which a multiply bonded dimetal complex contains two different intramolecular phosphine bridges. There is a staggered rotational geometry about the short Re-Re bond (2.237 (1) ?) with average Cl-Re-Re-Cl and P-Re-Re-P torsional angles of 57.6° and 48.9°, respectively.