science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2016 Substance: protoporphyrin Other Names: protoporphyrin IX Formula: C34H34N4O4 CAS-No.: 553-12-8 PubChem: CID Study: uv absorption spectrum Authors: B.H. Schechtman, W.E. Spicer Title: Near infrared to vacuum ultraviolet absorption spectra and the optical constants of phthalocyanine and porphyrin films Journal/Source: J. Mol. Spectr., 33 (1), 28-48, (1970); http://dx.doi.org/10.1016/0022-2852(70)90050-0 Data: diagram, table Energy/Wavelength range: 0.5 - 11.8 eV (~ 105 - 2480 nm) Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: thin film pH: Comments: Measurements are reported for photon energies between 0.5 and 11.8 eV of the absorption coefficient of thin films of free base, copper, and zinc phthalocyanines, chlorinated copper phthalocyanine, and free base protoporphyrin. Author to whom correspondence should be addressed: (e-mail address):