| abstract |
Compounds of general formula I, II, III and IV (formula (I) in which the variables have the meaning indicated in the description) and methods for the preparation of compounds of general formula I, II, III and IV Is disclosed. Use of the compounds of general formulas II, III and IV and the compounds of general formulas II, III and IV themselves produced by the method for the production of dye-sensitized solar cells and such dye-sensitized solar cells, respectively Itself is disclosed. |