Structural characterization of possible intermediates in vanadium-catalysed sulfide oxidation

Vanadium(IV and V) Complexes ContainingSNO (Dithiocarbonylhydrazone; Thiosemicarbazone) Donor Sets

“…The bicyclic system formed between the vanadium centre and the tridentate ligand is slightly folded along the VϪN1 axis: The angles between the planes VϪO3ϪC6ϪC11ϪC3ϪN1 and VϪN1ϪN2ϪC2ϪS2 amount to 16.92(15) (5a) and 20.41 (22)°(5b). The planes by themselves are not ideal, with the largest deviations encountered with V1 (Ϫ0.228) and O3 (0.252 Å ) in the plane VϪO3ϪC6ϪC11ϪC3ϪN1 of 5a.…”

A journey into the electrochemistry of vanadium compounds

“…Despite some uncertainties in attributing the processes to metal or to the ligand, comparison with similar species pointed at metal-centered redox processes reasonably (Table 3, entry 22). In the same paper V(III) complexes with tetrachlorocathhecol were prepared and their electrochemical behavior described (Table 8, Salen-type ligands allowed to obtain non-oxido V(IV) complexes, with the remaining coordination sites occupied by Cl ligands [110]. N,N -bis(2-hydroxy-3-methoxybenzylidene)-1,2-cyclohexanediamine (salcyhexH 2 ) gave V(salcyhex)Cl 2 , that presented reversible, metal-centered electrochemical oxidation and reduction ( An interesting development was to incorporate the 1,2-benezenediol moiety in a complex structure of a tertiary amine, in order to have hexadentate ligands [111].…”

Synthesis and Crystal Structure Determination of 2,2′-Sulfinyl-bis(4-methyl Phenol) and 2,2′-Thio-bis(4-methyl Phenol)

“…2 Also, metal catalyzed reactions of organosulfur compounds are of biological and industrial importance. 4 Because of the importance of these compounds we were interested in the synthesis and crystal structure determination of them. 4 Because of the importance of these compounds we were interested in the synthesis and crystal structure determination of them.…”