science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2020

Substance: curcumin					Other Names: diferuloylmethane; natural yellow 3

Formula: C21H20O6					CAS-No.: 458-37-7	PubChem: CID 969516

Study: uv absorption spectra

                
Authors: A. Puglisi, T. Giovannini, L. Antonov, C. Cappelli

Title: Interplay between conformational and solvent e?ects in UV-visible absorption spectra: curcumin tautomers as a case study

Journal/Source: Phys. Chem. Chem. Phys.,21, 15504-15514, (2019); https://doi.org/10.1039/C9CP00907H


Data: table, diagram

Energy/Wavelength range: 300 - 550 nm

Resolution: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 

Phase: solution (water; ethanol; ethanol/water 10/90 %)

pH: 


Comments: UV-vis spectra of enol–keto (EK) and keto–keto (KK) tautomeric forms of curcumin dissolved in aqueous solution are presented.