Complexation between vanadium(V) and citrate: spectroscopic and structural characterization of a dinuclear vanadium(V) complex |
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| Authors: | Zhou Zhao-Hui Zhang Hui Jiang Ya-Qi Lin Dong-Hai Wan Hui-Lin Tsai Khi-Rui |
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| Affiliation: | (1) Department of Chemistry and State Key Laboratory for the Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, P.R. China |
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| Abstract: | Investigation of the aqueous coordination chemistry for citrate and vanadium(V) resulted in the isolation and characterization of a dinuclear vanadium(V) citrato complex (1) Na2K2[VO2(Hcit)]2 · 9H2O. Complex (1) is an intermediate between the fully deprotonated and diprotonated citrate vanadate. It may represent an early mobilized precursor in the biosynthesis of FeV-co, as well as a relevant model in the proton transport relay process between P-cluster pair to M-cluster pair. The complex has been characterized by elemental analyses and i.r. spectroscopy. Its i.r. spectra are consistent with a oxo-bridged dinuclear structure as revealed by a single crystal X-ray diffraction study. |
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