| Autor: |
Ivanova, Svetlana M., Nolan, Benjamin G., Kobayashi, Yoshihiro, Miller, Susie M., Anderson, Oren P., Strauss, Steven H. |
| Zdroj: |
Chemistry - A European Journal; January 2001, Vol. 7 Issue: 2 p503-510, 8p |
| Abstrakt: |
The relative Lewis basicities of six Al(ORF)4−ions, Al{OC(CH3)(CF3)2}4−, Al{OC(CF3)3}4−, Al{OCPh(CF3)2}4−, Al{OC{4‐C6H4(tBu)}(CF3)2}4−, Al{OC(Cy)(CF3)2}4−, and Al{OCPh2(CF3)}4−, have been determined by measuring their relative coordinating abilities towards Li+in dichloromethane. The relative Li+Lewis basicities of the Al(ORF)4−ions are linearly related to the aqueous pKavalues of the corresponding parent HORFfluoroalcohols. The Lewis basicity of Al{OCH(CF3)2}4−could not be measured because two of these anions can coordinate to one Li+cation. The structures of LiAl{OCH(CF3)2}4and [1‐Et‐3‐Me‐1,3‐C3H3N2][Li{Al{OCH(CF3)2}4}2] were determined. |
| Databáze: |
Supplemental Index |
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