title: X-ray photoelectron spectroscopic studies on the electronic structures of porphyrin and phthalocyanine compounds.
mesh_terms: D001665:Binding Sites; D004583:Electrons; D007211:Indoles; D007501:Iron; D009584:Nitrogen; D009942:Organometallic Compounds; D010777:Photochemistry; D011166:Porphyrins; D011522:Protons; D013057:Spectrum Analysis; D014961:X-Ray Diffraction
chemical_list: D007211:Indoles; D009942:Organometallic Compounds; D011166:Porphyrins; D011522:Protons; D007501:Iron; D009584:Nitrogen