science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: emodin (deprotonated)			Other Names: 3-oxido-6-methyl-1,8-dihydroxy-9,10-anthraquinone

Formula: C15H9O5-					CAS-No.: 	PubChem: CID 

Study: linear dicroism spectroscopy

                
Authors: S.C. Nguyen, B.K Vilster Hansen, S.V. Hoffmann, J. Spanget-Larsen

Title: Electronic states of emodin and its conjugate base. Synchrotron linear dichroism spectroscopy and quantum chemical calculations

Journal/Source: Chem. Phys., 352 (1-3), 167-174, (2008); https://doi.org/10.1016/j.chemphys.2008.06.007


Data: diagram, table

Energy/Wavelength range: 208 - 700 nm

Resolution: 0.5-1.0 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 

Phase: in stretched poly(vinyl alcohol)

pH:


Comments: The electronic transitions of emodin (1,3,8-trihydroxy-6-methyl-9,10-anthraquinone, E) and its conjugate base (3-oxido-6-methyl-1,8-dihydroxy-9,10-anthraquinone, Ecb) 
were investigated by UV/Vis linear dichroism (LD) spectroscopy on molecular samples aligned in stretched poly(vinylalcohol). 

Author to whom correspondence should be addressed: (e-mail address):