212497-11-5

Basic information

• Product Name: [PhN=C-S-Re(CO)3-μ-PC(NMe2)2]2
• CAS NO: 212497-11-5
• Molecular Weight: 1073.13
• Mol File: 212497-11-5.mol

Chemical Properties

• CAS DataBase Reference: [PhN=C-S-Re(CO)3-μ-PC(NMe2)2]2(CAS DataBase Reference)
• NIST Chemistry Reference: [PhN=C-S-Re(CO)3-μ-PC(NMe2)2]2(212497-11-5)
• EPA Substance Registry System: [PhN=C-S-Re(CO)3-μ-PC(NMe2)2]2(212497-11-5)

Safety Data

• Hazardous Substances Data: 212497-11-5(Hazardous Substances Data)

Upstream product

• 14220-21-4 rhenium(I) pentacarbonyl bromide 
• 83716-84-1 (trimethylsilyl)phosphine 
• 103-72-0 phenyl isothiocyanate 

Relevant articles and documents

Synthesis, structure, and coordination chemistry of P-Acyl-, P-Thiocarbamoyl-, and P-Dithiocarboxyl-substituted phosphaalkenes R(X)C-P=C(NMe2)2 (R = Ph, tBu, SSiMe3, N(Ph)SiMe3; X = O, S)

Reaction of Me3SiP=C(NMe2)2 (1) with pivaloyl chloride and benzoyl chloride afforded the acylated phosphaalkenes RC(O)P=C(NMe2)2 2a (R = tBu) and 2b (R = Ph). Carbon disulfide and phenyl isothiocyanate were inserted into the P-Si bond of 1 to give the functionalized phosphaalkenes R(X)C-P=C(NMe2)2 2c [R(X)C - Me3Si-S(S)C] and 2d [R(X)C = Ph(Me3Si)N(S)C]. Heating 2c and 2d with (CO)5MBr (M = Mn, Re) in toluene at 50-80°C led to complexes [X = CSM(CO)3-μ-PC(NMe2)2]2 3c (M = Mn, X = S), 3d (M = Mn, X = NPh), 4c (M = Re, X = S), and 4d (M = Re, X = NPh). The X-ray structure analysis of 2c showed extensive π-delocalization of electron density from phosphorus into the C=S group The structure determination of 4d revealed the molecule as a tricyclic system with an anti orientation of the peripheric four-membered rings. The organophosphorus fragment serves as η2(P,S)-μ(P) bridging ligand, a coordination mode without precedence in phosphaalkene chemistry.