Prepared chiral nanorods of a cobalt(II) porphyrin dimer and studied changes of UV-Vis and CD spectra with aggregate morphologies under different temperatures.

Novel porphyrin dimer ligand and cobalt complexes by directly bridging with l-glutamic acid have been prepared and characterized. The intensities of circular dichroism and UV-vis spectra that change the aggregate morphologies of the porphyrin dimer under different temperatures have been investigated.