|
|||||
|
|
The Trifluoromethyl Anion |
|
| Authors: | Dr. Anton Lishchynskyi Dr. Fedor M. Miloserdov Dr. Eddy Martin Dr. Jordi Benet‐Buchholz Eduardo C. Escudero‐Adán Dr. Andrey I. Konovalov Dr. Vladimir V. Grushin |
| Affiliation: | Institute of Chemical Research of Catalonia (ICIQ), Avgda. Pa?sos Catalans 16, 43007 Tarragona (Spain) |
| Abstract: | First evidence for the existence of free trifluoromethyl anion CF3? has been obtained. The 3D‐caged potassium cation in [K(crypt‐222)]+ is inaccessible to CF3?, thus rendering it uncoordinated (“naked”). Ionic [K(crypt‐222)]+ CF3? has been characterized by single‐crystal X‐ray diffraction, solution NMR spectroscopy, DFT calculations, and reactivity toward electrophiles. |
| Keywords: | carbanions NMR spectroscopy trifluoromethyl anion trifluoromethylation X‐ray diffraction |