Lewis Acid Behavior of ReO2F3: Synthesis of (ReO2F3)\\infty, ReO2F4-, Re2O4F7-, Re3O6F10-, and ReO2F3(CH3CN) and Study by NMR Spectroscopy, Raman Spectroscopy, and Density Functional Theory Calculations; and X-ray Structures of [Li][ReO2F4], [K][Re2O4F7], [K][Re2O4F7].2ReO2F3, [Cs][Re3O6F10], and ReO3F(CH3CN)2.CH3CN,
Inorganic Chemistry 38, 2340 (1999)