New nitrogen heterocycles containing a ferrocene fragment: Optical and physicochemical properties

New thermally stable 2,4,6-trisubstituted pyrimidines containing aromatic (ferrocene and para-substituted benzene) fragments at the C4 and C6 positions and an amino group or pyrrole ring at the C2 positions of the pyrimidine ring have been synthesized, and their optical and electrochemical properties have been studied. The redox potentials of the ferrocene fragments therein have been determined by cyclic voltammetry.