Structural and spectroscopic studies of a rare non-oxido V(v) complex crystallized from aqueous solution.

ABSTRACT: A non-oxido V(v) complex with glutaroimide-dioxime (H₃L), a ligand for recovering uranium from seawater, was synthesized from aqueous solution as Na[V(L)₂]·2H₂O, and the structure determined by X-ray diffraction. It is the first non-oxido V(v) complex that has been directly synthesized in and crystallized from aqueous solution. The distorted octahedral structure contains two fully deprotonated ligands (L^3-) coordinating to V⁵⁺, each in a tridentate mode via the imide N (R _V-N = 1.96 Å) and oxime O atoms (R _V-O = 1.87-1.90 Å). Using ¹⁷O-labelled vanadate as the starting material, concurrent ¹⁷O/⁵¹V/¹H/¹³C NMR, in conjunction with ESI-MS, un

SUBMITTER: Leggett CJ 

PROVIDER: S-EPMC5477013 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature