science-softCon uv/vis+ spectra data base; www.uv-spectra.de, (C) science-softCon 2018 Substance: coumarin Other Names: 2H-chromen-2-one Formula: C9H6O2 CAS-No.: 91-64-5 PubChem: 323 Study: uv absorption spectra Authors: R. H. Abu-Eittah, Bahgat Ali H. El-Tawil Title: The electronic absorption spectra of some coumarins. A molecular orbital treatment Journal/Source: Can. J. Chem., 63(6): 1173-1179, (1985); doi 10.1139/v85-200 Data: diagram, table Energy/Wavelength range: 210 - 340 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration. Phase: solution (dioxan; ethanol) pH: Comments: The electronic absorption spectra of coumarin and its derivatives umbelliferone (6-hydroxycoumarin), esculetin (6,7-dihydroxycoumarin), and scopoletin (6-methoxy-7-hydroxycoumarin) were investigated. Author to whom correspondence should be addressed: (e-mail address):