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The Trifluoromethyl Anion |
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| 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 |
| Institution: | 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 |