Two new scorpionates vanadium haloperoxidases model complexes: Synthesis and structure of VO(O2)(pzH)(HB(pz)3) and VO(O2)(pzH)(B(pz)4) (pzH=pyrazole(C3H4N2))

Biomimetic Applications of Metal Systems Supported by Scorpionates

“…The occurrence of vanadium in living systems and the relevant chemistry have been reviewed (Etienne, 1996). Recently, the vanadium complexes of general type {VO(O 2 )[HB(pz) 3 ](Hpz)} and {VO(O 2 )[pzB(pz) 3 ](Hpz)} were synthesized, characterized and indicated as model for haloperoxidase (VHPO) enzymes (Holmes & Carrano, 1991;Xing et al, 2007), that are able to catalyze the oxidation of halides to corresponding hypohalous acids, which readily undergo halogenation of organic substrates or conversion of hydrogen peroxide to singlet oxygen and generation of halides. The pseudooctahedral V(IV) complexes with tris(pyrazolyl)borate ligands, {[HB(pz) 3 ]V(O)Cl} .…”

Preface: Recent Advances and Highlights of the 5th International Vanadium Symposium

“…catalysis, insulin-enhancing, anti-tumor) of already known compounds. For example: Schiff bases of the salen-type (66), reduced Schiff bases of salan-type (171,172,173), sal-amino acidate and other Schiff bases, including the reducedtype derivatives, (28,78,193,195,197,216,217), amino acids or peptides (186)(187)(188)(189)196), hydroxycarboxylates (198,218,219,221) 158,180,184,[224][225][226][227][228][229][230][231][232][233][234].…”

Synthesis, Structure and Spectroscopic Properties of Oxovanadium Tris(3,5-dimethylpyrazolyl)borate Aroylthiourea Complexes

“…Tp* will coordinate to metal ion center through the three N atom from three pyrazol ring (Mark et al 2013). Coordination chemistry of oxovanadium(IV) complexes with Tp* ligand has been studied and few reports on the application of the complex in biology process involving organisms (Bai et al 2010;Collison et al 1993;Etienne 1996;Xing et al 2007a).…”