Decomposition and cycloaddition reactions of hfacac and syntheses and structures of Ln{sub 2}{sup III}(hfacac){sub 4}(bdmap){sub 2}(H{sub 2}O){sub 2}(THF){sub 2}, Ln{sup III}Cu{sup II}(bdmapH){sub 2}(hfacac){sub 2}(O{sub 2}CCF{sub 3})L, and Ln{sup III}Cu{sub 2}{sup II}(hfacac)(bdmap){sub 3}(O{sub 2}CCH{sub 3}){sub 2}(O{sub 2}CCF{sub 3})(hfacacH) (Ln = Y, Pr, Nd; hfacac = Hexafluoroacetylacetonato; bdmap = 1,3-bis(dimethylamino)-2-propanolato; L = 2-methyl-2,4,6-tris(trifluoromethyl)-1,3-dioxane-4,6-diolato)
- Univ. of Windsor, Ontario (Canada)
- Michigan State Univ., East Lansing, MI (United States)
The reactions of Ln(hfacac){sub 3} with the bdmapH ligand and Cu(OCH{sub 3}){sub 2} or Cu{sub 2}(O{sub 2}CCH{sub 3}){sub 4}(H{sub 2}O){sub 2} have been investigated where hfacac = hexafluoroacetylacetonato, bdmapH = 1,3-bis(dimethylamino)-2-propanol. The hfacac ligand in these reactions has been found to undergo decomposition or cycloaddition with 1,1,1-trifluoro-2,2-propanediol. Two dinuclear compounds, Ln{sub 2}(hfacac){sub 4}(bdmap){sub 2}(H{sub 2}O){sub 2}(THF){sub 2}, (1, Ln = Pr) and LnCu(bdmapH){sub 2}-(hfacac){sub 2}(O{sub 2}CCF{sub 3})L (Ln = Pr, 2a; Y, 2b; L = 2-methyl-2,4,6-tris(trifluoromethyl)-1,3-dioxane-4,6-diolato), have been isolated from the reaction of Ln(hfacac){sub 3} with Cu(OCH{sub 3}){sub 2} and bdmapH in a 1:1:2 ratio in THF. These two compounds also were obtained by independent syntheses. A trinuclear compound, LnCu{sub 2}(hfacac)(bdmap){sub 3}(O{sub 2}-CCH{sub 3}){sub 2}(O{sub 2}CCF{sub 3})(hfacacH) (Ln = Nd, 3a; Pr, 3b), was obtained from the reaction of Ln(hfacac){sub 3} with Cu{sub 2}(O{sub 2}-CCH{sub 3}){sub 4}(H{sub 2}O){sub 2} and bdmapH in a 1:1:3 ratio in THF. The crystal structures of these compounds have been determined by X-ray diffraction analyses. Their thermal behavior has been examined by thermogravimetric analysis. The magnetic properties of compounds 1, 2b, and 3b were examined by EPR and magnetic susceptibility measurements.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 75757
- Journal Information:
- Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 4 Vol. 34; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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