Research Article
Host-Guest Complexations of Amine Boranes and Isoelectronic/Isostructural Quaternary Alkylammonium Cations by Cucurbit[7]uril in Aqueous Solution
Figure 2
Structures of amine borane guests (R3NBH3) with the limiting chemical shift changes (, ppm) of the guest proton (C-H in black and B-H in red) and boron (blue) resonances upon complexation by CB. The values in the square brackets are the values for the corresponding quaternary alkylammonium cations (R3NC).