Mixed substituted [Formula: see text]-bromo and cyano Cu(II) porphyrins (CuTPPBr[Formula: see text](CN)[Formula: see text] ([Formula: see text] = 0–4)) were synthesized from CuTPPBr4 by nucleophilic substitution with excess CuCN in quinoline under argon atmosphere for the first time. These porphyrins exhibited a gradual red-shift both in Soret and Q-bands with increase in number of cyano groups. CuTPPBr[Formula: see text](CN)[Formula: see text] ([Formula: see text] 0–4) exhibited anodic shift in their first ring oxidation potential ([Formula: see text] [Formula: see text] = 120–460 mV) and in first reduction potential ([Formula: see text] [Formula: see text] = 450–940 mV) as compared to CuTPP due to electron withdrawing nature of cyano and bromo substituents.