Oxovanadium(IV) and (V) complexes of acetylpyridine-derived semicarbazones exhibit insulin-like activity

A new oxidovanadium(IV) Schiff base complex containing asymmetric tetradentate ONN′O′ Schiff base ligand: Synthesis, characterization, crystal structure determination, thermal study and catalytic activity

“…In 17 the area of bioinorganic chemistry, interest in Schiff base complexes 18 with transition and inner-transition metals has focused on the role 19 of such complexes in providing useful synthetic models for the 20 metal-containing sites in metallo-proteins and enzymes [3][4][5][6][7][8][9][10][11]. In 21 recent years, the coordination chemistry of Schiff base complexes of 22 oxidovanadium(IV) and dioxidovanadium(V) with N, O, and S-donor 23 chelating ligands have received considerable attention.…”

“…In 21 recent years, the coordination chemistry of Schiff base complexes of 22 oxidovanadium(IV) and dioxidovanadium(V) with N, O, and S-donor 23 chelating ligands have received considerable attention. They show 24 catalytic activity and play vital role in a variety of biochemical 25 processes such as haloperoxidation [12][13][14][15], phosphorylation [16], 26 insulin mimicking [17][18][19], nitrogen fixation [20], tumor growth 27 inhibition, and prophylaxis against carcinogenesis [17]. In addition, 28 high-valent vanadium complexes have been considered as new 29 versatile catalytic reagents for a wide range of oxidation reactions 30 [21,22], like oxidation of olefines and alcohols [23][24][25][26][27], benzene/ 31 alkylaromatic compounds [28,29], and sulfides [30][31][32] .…”

Synthesis, Characterization and Antimicrobial Activities of Hydrazone Ligands Derived from 2-(phenylamino)acetohydrazide and Their Metal Complexes

“…2). [43][44][45] However the electronic absorption spectra of ruthenium(III) complexes 9 and 21 in DMSO solution displays two bands at 520, 630 and 500, 610 nm. The first band is due to LMCT transition and the second is assigned to…”

Two New Isomeric Di-μ-oxo Bis[oxovanadium(V)] Complexes Containing Schiff Base Ligands

“…The catalytic, biological and pharmacological properties of vanadium complexes have also received considerable interest in recent years [5][6][7][8]. The vanadium complexes have been proved to possess effective insulin-like activity [9,10]. In addition, the presence of vanadium haloperoxidases has particularly stimulated the search for the structural and functional models based on vanadium complexes [11,12].…”