Kuhn, Norbert; Fahl, Joanna; Blaser, Dieter; Boese, Roland:

Imidazole derivatives. Part 34. Synthesis and properties of [Ph2(Carb)P]AlCl4 (Carb = 2,3-dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene). A stable carbene complex of trivalent phosphorus.

In: Zeitschrift fuer Anorganische und Allgemeine Chemie, Jg. 625 (1999) ; Nr. 5, S. 729-734
ISSN: 0044-2313
Zeitschriftenaufsatz / Fach: Chemie
Abstract:
2,3-Dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (Carb) reacts with Ph2PCl to give [Ph2(Carb)P]Cl which is converted to the more stable [Ph2(Carb)P]AlCl4 (13) on treatment with AlCl3. The cationic [Ph2(Carb)PSe]AlCl4 was obtained from 13 and Se. Spectroscopic and structural data indicate [Ph2(Carb)P]+ to be a cationic analog of Ph3P. The x-ray structure of 13.2H2O is reported.

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