Samarium acetate tetrahydrate

Samarium Acetate Tetrahydrate (CH3C02)3Sm 4H20 13C CP/MAS chemical-shift thermometer [34]... 

The most commonly used compound for C-based solid-state temperature measurements is samarium acetate tetrahydrate. The Sm + is nine-coordinated by the oxygen atoms of three bidentate acetate ligands, two water molecules, and a bridging oxygen from an acetate ligand of an adjacent... 

Europium acetate monohydrate (99.9 %), samarium acetate tetrahydrate (99.9 %), acetone-i 6 (D, 99.9 %) and CDCI3 (D, 99.8 %) were purchased from Wako Pure Chemical Industries Ltd. l,l,l,5,5,5-hexafluoro-2,4-pentanedione, 4,5-bis(diphenyl-pho-sphino)-9,9-dimethylxanthene, 4,5-bis(di-ferf-butylphosphino)-9,9-dimethylx-anthene and bis[(2-diphenylphosphino)phenyl]ether were obtained from Tokyo Kasei... 

Samarium acetate tetrahydrate (5.0 g, 13 mmol) was dissolved in distilled water (60 mL) in a 100 mL flask. A solution of l,l,l,5,5,5-hexafluoro-2,4-pentanedione (10 g, 48 mmol) was added dropwise to the solution. The reaction mixture produced a precipitation of white yellow powder after stirring for 2 h at room temperature. The reaction mixture was filtered, and the resulting powder was recrystaUized from methanol to afford colorless needle crystals of the titled compound. 

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