抄録
New vanadium (V) complex, diammomum (nitrilotriacetato)dioxovanadate (V) has been synthesized. The structure of the complex has been studied by NMR spectzoscopies as well as X-ray crystallography. The unit cell of the monoclinic crystals contains four molecules with a=6.923 (1) Å, b=8.824 (2) Å and β =91.60 (3)° in the space group of P21/n. The anion, [VO2NTA]2- has irregular and distorted octahedral geometry around vanadium with two double-bonded oxo atoms cis to each other. It is confirmed from NMR studies that the chemical exchange between glycinate rings cis to and trans to V=O bond has occurred fast in aqueous solution at elevated temperature.
