Samarium alkyl-aryloxide complex containing a trigonal bipyramidal carbon atom. X-ray structure of [Li(THF)][sub 2][Sm(O-2,6-i-Pr[sub 2]C[sub 6]H[sub 3])[sub 3] CH[sub 2]SiMe[sub 3][sub 2]]
- Los Alamos National Lab., NM (United States)
- Indiana Univ., Bloomington, IN (United States)
Reaction of Sm(O-2,6-i-Pr[sub 2]C[sub 6]H[sub 3])[sub 3](THF)[sub 2] (1) with 3 equiv of LiCH[sub 2]SiMe[sub 3] in THF solution produces the salt complex (Me[sub 3]SiCH[sub 2])Sm[([mu]-OAr)([mu]-CH[sub 2]SiMe[sub 3])Li (THF)][([mu] -OAr)[sub 2]Li(THF)] (2, Ar = 2,6-i-Pr[sub 2]C[sub 6]H[sub 3]) in 58% yield. [sup 1]H and [sup 13]C NMR are extremely complex, while [sup 7]Li NMR is indicative of an equilibrium between 2 and free LiO-2,6-i-Pr[sub 2]C[sub 6]H[sub 3] in solution. Compound 2 contains a pentacoordinate samarium metal center ligated by one terminal and one bridging CH[sub 2]SiMe[sub 3] ligand and three bridging O-2,6-i-Pr[sub 2]C[sub 6]H[sub 3] ligands. Each lithium atom is coordinated to one molecule of THF and either two aryloxide ligands or one aryloxide and one alkyl bridging ligand. 39 refs., 1 fig., 3 tabs.
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7080066
- Journal Information:
- Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 13:11; ISSN 0276-7333; ISSN ORGND7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
ALKYL RADICALS
AROMATICS
COMPLEXES
CRYSTAL STRUCTURE
LIGANDS
LITHIUM COMPLEXES
MOLECULAR STRUCTURE
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RADICALS
RARE EARTH COMPLEXES
SAMARIUM COMPLEXES
SPECTRA
X-RAY SPECTRA