159281-62-6

Basic information

• Product Name: Sm(OC(=C₆H₆)Ph)2(O-C₆H₃-(t)Bu₂-2,6)(hexamethylphosphoramide)2
• CAS NO: 159281-62-6
• Molecular Weight: 1080.54
• Mol File: 159281-62-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Sm(OC(=C₆H₆)Ph)2(O-C₆H₃-(t)Bu₂-2,6)(hexamethylphosphoramide)2(CAS DataBase Reference)
• NIST Chemistry Reference: Sm(OC(=C₆H₆)Ph)2(O-C₆H₃-(t)Bu₂-2,6)(hexamethylphosphoramide)2(159281-62-6)
• EPA Substance Registry System: Sm(OC(=C₆H₆)Ph)2(O-C₆H₃-(t)Bu₂-2,6)(hexamethylphosphoramide)2(159281-62-6)

Safety Data

• Hazardous Substances Data: 159281-62-6(Hazardous Substances Data)

Upstream product

• 159281-61-5 Sm(OC(=C₆H₆)Ph)2(O-C₆H₂-(t)Bu₂-2,6-Me-4)(hexamethylphosphoramide)2 
• 128-39-2 2,6-di-tert-butylphenol 
• 680-31-9 N,N,N,N,N,N-hexamethylphosphoric triamide 
• 7440-19-9 samarium 
• 119-61-9 benzophenone 

Downstream Products

• 159281-64-8 Sm(OCHPh₂)2(O-C₆H₃-(t)Bu₂-2,6)(hexamethylphosphoramide)2 

Relevant articles and documents

Protonation at the aromatic ring vs at the carbonyl group of lanthanide-diaryl ketone dianion species by aryl alcohols. Formation, structural characterization, and reactivity of lanthanide aryloxide, mixed aryloxide/alkoxide, and aryloxide/enolate complexes

Reaction of the ytterbium-benzophenone dianion complex (1), which was formed by reaction of Yb metal with benzophenone in THF/HMPA, with 2,6-di-tert-butyl-4-methylphenol, yielded the ytterbium(II) aryloxide complex Yb(OAr)2(HMPA)2 (2, Ar= C6H2 -tBu2-2,6-Me-4) as a major product (80%) and the ytterbium(III) enolate complex (3) as a minor one (ca. 5% yield). The mechanisms of these reactions are discussed. X-ray crystallographic studies reveal that 3, 4a, and 7b are isostructural, and so are 5a and 6. The central metal ions in these complexes are all five-coordinated in a trigonal bipyramid form (highly distorted in the case of 5a and 6) with two HMPA ligands at the apical and three anionic oxygen ligands at the equatorial positions.