Concepedia

Mononuclear to Tetranuclear Structural Transformation in Vanadyl Complexes of 3-Hydroxypyridine-2-carboxylic Acid (H2hpic)

Shigenobu Yano, Misaki Nakai, F. Sekiguchi, Makoto Obata, Masako Kato, Motoo Shiro, Isamu Kinoshita, Masahiro Mikuriya, Hiromu Sakurai, Chris Orvig

Chemistry Letters · 2002 · 20 citations · 5 references

DOI

Concepts

Abstract

Abstract Reaction of vanadyl sulfate with 3-hydroxypyridine-2-carboxylic acid (H2hpic) affords two chargeless complexes, [VO(Hhpic-O,O)(Hhpic-O,N)(H2O)]·3H2O (1) and unprecedented cyclic tetranuclear complex [(VO)4(μ-(hpic-O,O′,N))(H2O)4]·8H2O (2), which were characterized by X-ray crystallographic analysis. The unique structural transformation between complexes 1 and 2 was found.

References

5

Insulin mimetic peroxovanadium complexes: preparation and structure of potassium oxodiperoxo(pyridine-2-carboxylato)vanadate(V), K2[VO(O2)2(C5H4NCOO)].2H2O, and potassium oxodiperoxo(3-hydroxypyridine-2-carboxylato)vanadate(V), K2[VO(O2)2(OHC5H3NCOO)].3H2O, and their reactions with cysteine

Alan Shaver, Jesse B. Ng, David A. Hall et al. · Inorganic Chemistry · 1993 · 163 citations

, , +7

Vanadium Complexes as Insulin Mimetic Agents:  Coordination Chemistry and in Vivo Studies of Oxovanadium(IV) and Dioxovanadate(V) Complexes Formed from Naturally Occurring Chelating Oxazolinate, Thiazolinate, or Picolinate Units

Marco Melchior, Katherine H. Thompson, Janet M. Jong et al. · Inorganic Chemistry · 1999 · 126 citations

, , +13

Long-Term Acting and Orally Active Vanadyl-Methylpicolinate Complex with Hypoglycemic Activity in Streptozotocin-Induced Diabetic Rats.

S. Fujimoto, Kumiko Fujii, Hiroyuki Yasui et al. · Journal of Clinical Biochemistry and Nutrition · 1997 · 107 citations · Full text

, , +17

Enzyme Interactions with Labile Oxovanadates and Other Polyoxometalates

Debbie C. Crans · Comments on Inorganic Chemistry · 1994 · 84 citations

, , +10

Solution speciation and spectral studies on oxovanadium(IV) complexes of pyridinecarboxylic acids

Eszter Kiss, K. Petrohán, Daniele Sanna et al. · Polyhedron · 2000 · 78 citations

, , +13