The title compound (VI) is prepared as shown.

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Polypyrrole-zirconium complex has been synthesized by reacting 2-amino-3,4-dicyano-5-mercaptopyrrole with zirconium nitrate in absolute ethanol under reflux for 24 h. The product has been characterized by elemental analyses, FTIR spectroscopy, in addition to thermal analysis (TGA and DSC) and its solubility has been investigated. The DC electrical conductivity variation of polypyrrole-zirconium complex has been studied in the temperature range 300-500 K after annealing for 24 h at 1008C and doping with I 2 , FeCl 3 and CuCl 2 . H 2 O for comparison. An attempt has been made to interpret the DC electrical conductivity behavior and thermal properties to chain length, dopant used, polymer structure and attached groups.