Tetraanisylethylene 1,2-dication

The stoichiometry in equation (79) is confirmed by the spectroscopic quantification of the dimethoxybenzene cation radical as well as by the earlier observation that the reaction of electron-rich tetraanisylethylene with iodine monochloride produces the iodine dichloride (IClX) salt of tetraanisylethylene dication whose structure has been established by X-ray crystallography,228 i.e.,... 

The (R)-alkyl groups induce left-handed helicity in dication 51 which gives an intense Cotton effect in the circular dichroism (CD) spectrum. As in the case of the tetraanisylethylene dication (5), the X-ray crystal... 

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