[B(O2C2(CF3)4)2]– ([FPB]-):Repurposing this Weakly Coordinating An- ion for Solid-State Molecular OrganoMetallic (SMOM) Chemistry

The perfluoropinacol borate-based anion [B(O 2 C 2 (CF 3 ) 4 ) 2 ] -, [FPB] -, is developed as a weakly coordinating anion for single-crystal to singlecrystal organometallic solid/gas reactivity, resulting in the isolation and characterization (including periodic DFT and IGMH analysis) of the -alkane complex [Rh(Cy 2 PCH 2 CH 2 PCy 2 )(exo- 2 2 -norbornane)][FPB].The synthetically useful solvent-free Na + salt, Na[FPB], and oxonium acid [H(OEt 2 ) 2 ][FPB] are also reported.