316803-45-9

Basic information

• Product Name: Re2(μ-H)(μ-P(cyclo-C6H11)2)(CO)7(ax-H2P(cyclo-C6H11))
• Synonyms: Re2(μ-H)(μ-P(cyclo-C6H11)2)(CO)7(ax-H2P(cyclo-C6H11))
• CAS NO: 316803-45-9
• Molecular Weight: 882.918
• Mol File: 316803-45-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Re2(μ-H)(μ-P(cyclo-C6H11)2)(CO)7(ax-H2P(cyclo-C6H11))(CAS DataBase Reference)
• NIST Chemistry Reference: Re2(μ-H)(μ-P(cyclo-C6H11)2)(CO)7(ax-H2P(cyclo-C6H11))(316803-45-9)
• EPA Substance Registry System: Re2(μ-H)(μ-P(cyclo-C6H11)2)(CO)7(ax-H2P(cyclo-C6H11))(316803-45-9)

Safety Data

• Hazardous Substances Data: 316803-45-9(Hazardous Substances Data)

Upstream product

• 822-68-4 cyclohexylphosphine 

Relevant articles and documents

Tetranuclear cluster complexes of the type [MM′(AuR3)2(μ-H)(μ-PCy2)(μ 4-PCy)(CO)6] (M,M′ = Mn, Re; R = Ph, Cy, Et): Synthesis, structure, and topomerisation

The dirhenium complex [Re2(μ-H)(μ-PCy2)-(CO)7(ax-H 2PCy)] (1) reacts at room temperature in thf solution with each two equivalents of the base DBU and of ClAuPR3 (R = Ph, Cy, Et) in a photochemical reaction process to afford the tetranuclear clusters [Re2(AuPR3)2-(μ-H)(μ-PCy 2)(μ4-PCy)(CO)6] (R = Ph (2), Cy (3), Et (4)) in yields of 35-48%. The homologue [Mn2(μ-H)(μ-PCy2)-(CO)7(ax-H 2PCy)] (5) leads under the same reaction conditions to the corresponding products [Mn2(AuPR3)2(μ-H)-(μ-PCy 2)(μ4-PCy)(CO)6] (R = Ph (6), Et (8)). Also [MnRe(μ-H)(μ-PCy2)(CO)7(ax/eq-H2PCy)] (9) reacts under formation of [MnRe(AuPR3)2(μ-H)(μ-PCy2)(μ 4-PCy)(CO)6] (R = Ph (10), Et (11)). All new cluster complexes were identified by means of 1H-NMR, 31P-NMR and v(CO)-IR spectroscopic measurements. 2, 4 and 10 have also been characterized by single crystal X-ray structure analyses with crystal parameters: 2 triclinic, space group P1, a = 12.256(4) A, b = 12.326(4) A, c = 24.200(6) A, α = 83.77(2)°, β = 78.43(2)°, γ = 68.76(2)°, Z = 2; 4 monoclinic, space group C2/c, a = 12.851(3) A, b = 18.369(3) A, c = 40.966(8) A, β = 94.22(1)°, Z = 8; 10 triclinic, space group P1, a = 12.083(1) A, b = 12.185(2) A, c = 24.017(6) A, α = 3.49(29)°, β = 78.54(2)°, γ = 69.15(2)°, Z = 2. The trapezoid arrangement of the metal atoms in 2 and 4 show in the solid structure trans-positioned an open and a closed Re... Au edge. In solution these edges are equivalent and, on the 31P NMR time scale, represent two fluxional Re-Au bonds in the course of a topomerization process. Corresponding dynamic properties were observed for the dimanganese compounds 6 and 8 but not for the related MnRe clusters 10 and 11. 2 and 4 are the first examples of cluster compounds with a permanent Re-Au bond valence isomerization.