Synthesis, crystal structures and catalytic epoxidation properties of dioxomolybdenum(VI) complexes with hydrazone ligands

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“…Last decades have seen an escalation of interest in the applications of spectroscopic and electroanalytical techniques to study the oxidation and reduction reaction of many types of chelating agents and their metal chelates [1][2][3][4][5][6][7][8][9][10][11][12]. Hydrazones or Schiff bases derived from 1-(1-hydroxynaphthalen-2-yl)ethanone (HNE), have flexible fashion, which coordinated to a metal ion through α-hydroxynaphthalene, imine nitrogen atom of hydrazone moiety and the protonated / deprotonated amide oxygen atom, the additional donor atom (N or O) forming chelating colored compounds [1,6,13,14].…”