Peroxo Aminopolycarboxylato Vanadate(V) of an Unusually Low Toxicity: Synthesis and Structure of the Very Stable K2[VO(O₂)(C₆H₆NO₆)]·2H₂O
The synthesis and structure of a monoperoxo vanadate(V) of the formula K2[VO(O2)NTA]·2H[2O, where NTA = C6H6NO6 3-, the nitrilotriacetate, is described. This stable compound crystallizes in the orthorhombic system (space group Pna21): a = 7.621(1), b = 13.002(3), c = 13.155(1) A ̊. A tetradentate NTA encloses vanadium in a distorted pentagonal bipyramid with an apical V = O group. Cis to it, in the pentagonal plane, a non-symmetrically coordinated peroxo group is located with an (OO) bond length of 1.438(4) Å. Complex IR spectra display rich absorption due to coordinated NTA, in addition to the characteristic V = O and (OO) stretching vibrations. Aqueous solutions of the complex show a (peroxo → V(V)) charge transfer band at γmax = 425 nm. © 1995.
C. Djordjevic et al., "Peroxo Aminopolycarboxylato Vanadate(V) of an Unusually Low Toxicity: Synthesis and Structure of the Very Stable K2[VO(O₂)(C₆H₆NO₆)]·2H₂O," Inorganica Chimica Acta, Elsevier, Jan 1995.
The definitive version is available at http://dx.doi.org/10.1016/0020-1693(94)04290-C
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