| abstract |
The present invention relates to the porphyrins of formula (I): Wherein R 1 ‑R 6 、R 1’ ‑R 6’ , X, X', Y and Y' as described in the appended claim 1.The invention further relates to the complex of the porphyrin and transition metal, especially iron, preferably Fe (III) or Fe (0) complex and its salt are used it as CO 2 Catalyst of the selective electrochemical reduction at CO, the electrochemical cell including the complex, and using the complex selectively by CO 2 The method for being electrochemically reduced to CO. |