1.16- Dodecahedryl dication

Dodecahedryl dication 242 Diamantane-4,9-diyl dication 243 3,3 -(l,l -Biadamantyl) dication 243 Cubyl-l,4-dicarboxonium ion 244... 

Dodecahedryl dication, (123), was generated from the dodecahedryl monocation (122), which was in turn obtained by ionizing dodecahedrane, hydroxydodeca-hedrane, or chlorododecahedrane (121) in SbF5/S02ClF at The... 

On the other hand, the bicyclo[3.3.3]undecane-l,5-diyl dication 172 (manxyl dication) was observed first by Olah et al.189 (the 13C NMR spectrum is shown in Figure 3.15) [Eq. (3.45)]. Until the generation of the 1,16-dodecahedryl dication... 

Olah and coworkers also prepared the parent dodecahedryl cation 29 under superacid conditions [Eq. (6.20)]. Upon standing in the superacid medium at -50°C, it slowly and irreversibly transformed into 1,16-dodecahedryl dication 31. The formation of dication 31 can be rationalized by protolytic ionization of the C-H bond at C(16) farthest from the cation center presumably involving hypercarbon intermediate 30. 

The cationic centers of the dodecahedryl mono- and dications (8 C 363.9 and 379.2, respectively) are the most deshielded absorptions yet observed for any... 

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