Patent ID: 8512934

Claim:
A compound of the formula I wherein X is S; L is COT; L 1 , L 2 , L 3 , L 4 , L 5 , L 6 , L 7 and L 8 are hydrogen; T is T 1 ; T 1 is C 3 -C 20 heteroaryl or C 1 -C 20 alkyl substituted by one or more D, D is Q 1 ; Q 1 is C 6 -C 14 aryl substituted by R 12 or halogen R 12 is C 1 -C 12 alkyl; Y is a halogen or a non-nucleophilic anion selected from the group consisting of C 1 -C 20 -perfluoroalkylsulphonylmethide, C f F 2f+1 SO 3 − ,(BZ 4 ) − , (SbZ 6 ) − , (AsZ 6 ) − , (PZ 6 ) − and (B(C 6 Z 5 ) 4 ) − ; wherein f is an integer from 1 to 8.