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Figure 1
(a) Possible tautomeric forms of SA, (b) chemical diagram of the compound studied, (6Z)-6-({[2-(hydroxymethyl)phenyl]amino}methylidene)-3,5-dimethoxycyclohexa-2,4-dien-1-one monohydrate, and (c) chart showing aromaticity situations of the rings together with the electron transfer route in the compound studied. The cis labeling is based on the relative positions of the tautomeric H and O atoms in an ortho position. Partial aromatic rings are represented by dashed circles. Dash widths are illustrated to be inversely proportional to the associated ring aromaticity.

ISSN: 2052-5206
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