Novel Homogeneous Nickel(II) Catalyst

The present invention relates to new Nickel catalysts of Formula I and II and to the process of preparation of the new catalysts. These new catalysts are used in preparing poly(3-substituted-thiophene) with high regioregularity. Highly regioregular poly(3-substituted-thiophene) can be used in the manufacture of optoelectronic device.