12128-53-9

Basic information

• Product Name: Tungsten, (h6-benzene)tricarbonyl-
• Synonyms: Benzenetungstentricarbonyl (6CI); Tungsten, (benzene)tricarbonyl- (7CI,8CI); Benzene, tungstencomplex; (Benzene)tricarbonyltungsten; (h6-Benzene)tricarbonyltungsten; (h6-Benzene)tungsten tricarbonyl
• CAS NO: 12128-53-9
• Molecular Formula: C9H6 O3 W
• Molecular Weight: 345.995
• Mol File: 12128-53-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Tungsten, (h6-benzene)tricarbonyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Tungsten, (h6-benzene)tricarbonyl-(12128-53-9)
• EPA Substance Registry System: Tungsten, (h6-benzene)tricarbonyl-(12128-53-9)

Safety Data

• Hazardous Substances Data: 12128-53-9(Hazardous Substances Data)

Upstream product

• 81097-61-2 fac-W(CO)3(PMTA) 
• 71-43-2 benzene 
• 115677-62-8 (tungstenpentacarbonyl)2(μ-CH3OCCH(C3H7)CH2C(CH3)(CH2CHCH2)COCH3) 

Relevant articles and documents

W(CO)3(PMTA) (PMTA = MeN(CH2CH2NMe2)2) as a starting material for syntheses of W(CO)3(PR3)3, W(CO)3(η6-arene), and the protonated W(H)(CO)3(PR3)3+ complexes

A new and improved method for the synthesis of M(CO)3(PMTA) (M = W, Mo) from M(CO)6 and PMTA (MeN(CH2CH2NMe2)2) is described.The tridentate nitrogen ligand in W(CO)3(PMTA) is replaced, under relatively mild conditions, by tertiary phosphines (PMe3, PEt3, PMe2Ph, PMePh2, PhP(CH2CH2PPh2)2, CH3C(CH2PPh2)3, and Ph2P(CH2)nPPh2 where n = 1, 2) and arenes (C6H6, MeC6H5, p-Me2C6H4, C6Me6, C6H5Cl), which provides a general synthetic method for the preparation of W(CO)3(PR3)3 and W(CO)3(η6-arene) complexes.The reactions of W(CO)3(L)3 with CF3SO3H in CH2Cl2 solution yield the hydrido derivatives W(H)(CO)3(L)3+ which were characterized by their 1H and 31P NMR spectra at different temperatures.These studies show the W(H)(CO)3(L)3+ complexes to be fluxional as a result of both hydride and phosphine ligand migration.