Interactions between diperoxovanadate complex and amide ligands in aqueous solution.
Multinuclear ((1)H, (13)C, (14)N, and (51)V) NMR spectroscopy has been used to study the reactions between the diperoxovanadate complex K(3)[OV(O(2))(2)(C(2)O(4))] x H(2)O (abbr. bpV(ox)) and ethylenediamine or diethylamine in aqueous solution. The interaction between bpV(ox) and diethylamine was very weak and no new complex was formed. However, bpV(ox) reacted with ethylenediamine giving a new product in which ethylenediamine attached to the vanadium atom via one nitrogen atom in a monodentate manner. Diffusion ordered spectroscopy (DOSY) measurements and theoretical calculations proved the formation of new product in bpV(ox) and ethylenediamine. The vanadium atoms in both [OV(O(2))(2)(C(2)O(4))](3-) and [OV(O(2))(2)(en)](-) species are six coordinated in solution state.
Zeng
Birong
B
Department of Physics, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen, Fujian 361005, PR China.
Zhu
Xiongbin
X
Cai
Suihui
S
Chen
Zhong
Z
D000577:Amides / Q000737:chemistry*; D005029:Ethylenediamines; D007700:Kinetics; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D012996:Solutions; D013055:Spectrophotometry, Infrared; D014638:Vanadates / Q000737:chemistry*; D014867:Water
D000577:Amides; D005029:Ethylenediamines; D008024:Ligands; D012996:Solutions; C500599:peroxyvanadate; D014867:Water; D014638:Vanadates; C031234:ethylenediamine