Figure 4. Absorption spectra of: (a) free H2TPP; (b) bismuth (III) complexe of H2TPP; (c) Nickel (II) complexe of H2TPP, (d) zinc (II) complexe of H2TPP in CH2Cl2 in 1x10-6 M with in insert the enlargement of Q region between 480-720 nm

From

An Undergraduate Experiment Using Microwave-Assisted Synthesis of Metalloporphyrins: Characterization and Spectroscopic Investigations

Shaikha S. Al Neyadi, Ahmed Alzamly, Abdullah Al-Hemyari, Ibrahim M. Tahir, Saeed Al-Meqbali, M. A. Ali Ahmad, Muna Bufaroosha

World Journal of Chemical Education. 2019, 7(1), 26-32 doi:10.12691/wjce-7-1-4