| Autor: |
Khristolyubov, D. O., Lyubov, D. M., Cherkasov, A. V., Fukin, G. K., Trifonov, A. A. |
| Předmět: |
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| Zdroj: |
Russian Chemical Bulletin; Nov2021, Vol. 70 Issue 11, p2110-2118, 9p |
| Abstrakt: |
The outcome of the exchange reactions of alkali metal diphenylmethanides [(3,5-Bu2t-MeO-C6H2)2CH]M (M = Li (2), K (3)) with LnCl3 is determined by the nature of the rare-earth metal. In the case of ScCl3(THF)3, the reactions (the molar ratio is 2:1) afford the complex [(3,5-Bu2t-2-MeO-C6H2)2CH]2ScCl (4). The reaction of YCl3 with compound 3 is accompanied by the C-O bond cleavage of the diphenylmethanide ligand to form new diphenylmethane (3,5-Bu2t-2-MeO-C6H2)2CHMe (5). For Yb and Sm with a stable divalent state, the exchange reactions of LnCl3 with compound 3 are accompanied by oxidative dimerization of diphenylmethanide carbanions and the elimination of 1,1,2,2-tetraarylethane [(3,5-Bu2t-2-MeO-C6H2)2CH]2 (6). According to the X-ray diffraction data, the diphenylmethanide ligands in compound 4 are bidentate and are coordinated to the Sc3+ ion in a κ2-CO mode. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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