US 10,725,377 B2  35  36  -continued  9  9  CC s+X)~ 0  0  -continued  OH  o~ 0 ’--- c¢ c¢  6  6  c¢~  ::cc,  c¢~  ~  # #  # #  6  6  Specific examples of the iodonium cation in formulae ( a5)  and (a6) are shown below, but not limited thereto. 