Fig. 3: Crystal structures.

a The main product from the reaction of BCF-DAC1 with n-hexane; b The product from the reaction of BCF–DAC1 with propane; c Al(ORF)3–DAC1; d The product from the reaction of Al(ORF)3–DAC1 with ethane followed by quenching by addition of CH3CN. ORF = OC(CF3)3. Thermal ellipsoid and stick drawings are set at 30% probability and hydrogen atoms are omitted for clarity. Colour codes: carbon (grey); boron (brown); nitrogen (navy blue); oxygen (red); aluminium (light blue); fluorine (green sticks).