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Table 5 Percentage contribution of the solvatochromic parameters

From: Synthesis, structure and solvatochromic properties of some novel 5-arylazo-6-hydroxy-4-phenyl-3-cyano-2-pyridone dyes

Substituent

Pπ*(%)

Pβ(%)

Pα(%)

H

58

25

17

OH

33

54

13

OCH3

55

19

26

CH3

50

22

28

Cl

74

17

9

Br

76

14

40

I

73

18

9

F

71

19

10

CN

66

28

6

COOH

65

30

5

COCH3

70

18

12

NO2

70

23

7

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BMC Chemistry

ISSN: 2661-801X

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