Synthesis and Characterization of 2, 3, 7, 8, 12, 13, 17, 18, Octabromo 5,10,15,20 tetra Phenyl Porphyrin

摘要

Chromium(Ⅲ) porphyrin and its derivative have been synthesized by bromination and demetaliation of copper tetra phenyl porphyrin.AII the complexes were characterized on the basis of their elemental analysis, UV-vis spectra and magnetic moment properties.The magnetic moment suggested that the complex in the range 3.79 BM indicating an octahedral structure.The comparison of the UV- vis spectra of the free base show that substitution of Br atom at p-pyrrole position lead to greater shift than substitution of electronegative group in the phenyl ring.