Research Article

Concomitant Effects of Transition Metal Chelation and Solvent Polarity on the First Molecular Hyperpolarizability of 4-Methoxyacetophenone Thiosemicarbazone: A DFT Study

Figure 1

Schematic representation of the push-pull mechanisms of the thione and thiol tautomers of MAPTSC, where A is the electron-acceptor group and D is the electron-donor group.