Electromeric effect of substitution at 6th position in 2-(Furan-2-yl)-3-hydroxy-4H-chromen-4-one (fhc) on the absorption and emission spectra

Electromeric effect of substitution at 6^th position in 2-(Furan-2-yl)-3-hydroxy-4H-chromen-4-one (FHC) on the absorption and emission spectra

MANISHA BANSAL^* and RANBIR KAUR

Department of Chemistry, Punjabi University, Patiala-147002 Punjab, India

E-mail addresses. [e-mail] and [e-mail]

Figure S1. Full Length ¹HNMR Spectra of 2-(furan-2-yl)-3-hydroxy-4H-chromen-4-one (2)



Figure S2. Expanded ¹HNMR Spectra of 2-(furan-2-yl)-3-hydroxy-4H-chromen-4-one (2)



Figure S3. D₂O replacement of 3-OH group in ¹HNMR Spectra of 2-(furan-2-yl)-3-hydroxy-4H-chromen-4-one (2)



Figure S4. Full length ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-methyl-4H-chromen-4-one (3)



Figure S5. Expanded ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-methyl-4H-chromen-4-one (3)



Figure S6. Full length ¹HNMR spectra of 2-(furan-2-yl)-3,6-dihydroxy-4H-chromen-4-one (4)



Figure S7. Full length ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-nitro-4H-chromen-4-one (5)



Figure S8. Expanded ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-nitro-4H-chromen-4-one (5)



Figure S9. D₂O replacement of 3-OH group in ¹HNMR Spectra of 2-(furan-2-yl)-3-hydroxy-6-nitro-4H-chromen-4-one (5)



Figure S10. Full length ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-chloro-4H-chromen-4-one (6)



Figure S11. Expanded ¹HNMR spectra of 2-(furan-2-yl)-3-hydroxy-6-chloro-4H-chromen-4-one (6)



Figure S12. D₂O replacement of 3-OH group in ¹HNMR Spectra of 2-(furan-2-yl)-3-hydroxy-6-chloro-4H-chromen-4-one (6)