197640-93-0

Basic information

• Product Name: N(P(C₆H₅)3)2⁽¹⁺⁾*Re₂(CO)8(S₂CH)^(1-) = [N(P(C₆H₅)3)2][Re₂(CO)8(S₂CH)]
• CAS NO: 197640-93-0
• Molecular Weight: 1212.24
• Mol File: 197640-93-0.mol

Chemical Properties

• CAS DataBase Reference: N(P(C₆H₅)3)2⁽¹⁺⁾*Re₂(CO)8(S₂CH)^(1-) = [N(P(C₆H₅)3)2][Re₂(CO)8(S₂CH)](CAS DataBase Reference)
• NIST Chemistry Reference: N(P(C₆H₅)3)2⁽¹⁺⁾*Re₂(CO)8(S₂CH)^(1-) = [N(P(C₆H₅)3)2][Re₂(CO)8(S₂CH)](197640-93-0)
• EPA Substance Registry System: N(P(C₆H₅)3)2⁽¹⁺⁾*Re₂(CO)8(S₂CH)^(1-) = [N(P(C₆H₅)3)2][Re₂(CO)8(S₂CH)](197640-93-0)

Safety Data

• Hazardous Substances Data: 197640-93-0(Hazardous Substances Data)

Upstream product

• 33634-75-2 sodium pentacarbonylrhenate 
• 65013-26-5 bis(triphenylphosphoranylidene)ammonium borohydride 

Relevant articles and documents

Dirhenium complexes with S2CPR3 bridges donating four and eight electrons - X-ray structures of [Re2(CO)8{μ-η1;η1-S 2CPCy3}] and [Re2(CO)6{μ-η2;η3-S 2CPCy3}]

The reaction of fac-[Re(CO)3(S2CPR3)Br] with [Re(CO)5]- affords the dinuclear octacarbonyl compounds [Re2(CO)a(|.iS2CPR3)] (3a-b), which have been isolated and characterized by spectroscopic methods. An X-ray crystal-structure determination of the derivative 3a (R = Cy) shows that the S2CPCy3 ligand acts as an η1(S);η1(S′) bridge donating two electrons to each metal atom of a symmetrical (CO)4ReRe(CO)4 unit. This unit is presumably formed through a concerted process involving carbonyl/sulfur exchange in the nonsymmetrical octacarbonyl (CO)3(S2CPR3)Re-Re(CO)5 generated after the coupling of the bromo derivative with the carbonyl anion. Complexes 3a-b can be obtained more directly by adding S2CPR3 to [Re2(CO)8(μ-H)(μ-CH= CHnBu)], which is formed by irradiation of Re2(CO)10 with 1-hexene. Hydride addition to the central carbon atom of the S2CPR3 ligand of 3a-b occurs with loss of PR3, to give the anion [Re2(CO)8(μ-S2CH)]~ which may be isolated as a salt with the PPN-cation. The octacarbonyl compounds 3a-b can be converted into hexacarbonyl complexes [Re2(CO)6(nS2CPR3)] (5a-b) by heating in toluene or octane at reflux temperature. According to an X-ray crystal-structure determination of the derivative 5 a (R = Cy), the loss of one carbonyl ligand from each rhenium atom is accompanied by the rearrangement of the S2CPR3 ligand which changes its bonding mode from η1(S);η1(S′) donating four electrons to η3(S,C,S′);η2(S,S′) donating eight electrons. WILEY-VCH Verlag GmbH,.