Electronic states of a novel smaragdyrin isomer: polarized spectroscopy and theoretical studies

The electronic structure and spectra of two novel pentapyrrolic macrocycles compounds and the isomers of smaragdyrin are examined using spectral and theoretical techniques. The results from spectral pattern that four lowest excited electronic singlet states of both compounds are in good agreement with a four-orbital model was widely used to describe the spectral analysis of such similar compounds.