X-ray crystal structure of a ternary copper(II) vitamin B6 complex, hydroxo(2,2′-bipyridyl)(pyridoxinato) copper(II) monohydrate. A rare example of monodentate coordination of copper(II) by the hydroxyl ion

作者: Irimpan I. Mathews , S.P.Sudhakara Rao , M. Nethaji

DOI: 10.1016/S0277-5387(00)83372-0

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摘要: Abstract A ternary metal complex involving Vitamin B6 with the formula [Cu(bipy)(pn) (OH)]H2O (bipy = 2,2′-bipyridine, pn anionic pyridoxine) has been synthesized and studied in solid state by means of spectroscopy X-ray crystallography. The geometry around copper(II) is distorted square pyramidal, two oxygens from phenolic 4-(hydroxymethyl) groups pn, nitrogens bipy an axial OH− ion forming coordination sphere. In this structure exists a new form deprotonation group. also provides rare example monodentate hydroxyl to copper.

参考文章(27)
Thomas Nowak, Albert S. Mildvan, George L. Kenyon, Nuclear relaxation and kinetic studies of the role of Mn 2+ in the mechanism of enolase. Biochemistry. ,vol. 12, pp. 1690- 1701 ,(1973) , 10.1021/BI00733A005
Richard L. Gustafson, Arthur E. Martell, Stabilities of metal chelates of pyridoxamine. Archives of Biochemistry and Biophysics. ,vol. 68, pp. 485- 498 ,(1957) , 10.1016/0003-9861(57)90379-X
A. Mosset, F. Nepveu-Juras, R. Haran, J.-J. Bonnet, Complexation of the vitamin B6 with the Cd2+ cation: NMR and X-ray structural study Journal of Inorganic and Nuclear Chemistry. ,vol. 40, pp. 1259- 1263 ,(1978) , 10.1016/0022-1902(78)80550-8
David S. Sigman, Catherine T. Jorgensen, Models for metalloenzymes. The zinc(II)-catalyzed transesterification of N-( -hydroxyethyl) ethylenediamine by p-nitrophenyl picolinate. Journal of the American Chemical Society. ,vol. 94, pp. 1724- 1730 ,(1972) , 10.1021/JA00760A051
Tenkasi S. Viswanathan, Terrence J. Swift, A nuclear magnetic resonance study of pyridoxal phosphate – metal ion interactions. II. Binding of manganese(II) Canadian Journal of Chemistry. ,vol. 57, pp. 1050- 1055 ,(1979) , 10.1139/V79-173
C. Singh, Location of hydrogen atoms in certain heterocyclic compounds Acta Crystallographica. ,vol. 19, pp. 861- 864 ,(1965) , 10.1107/S0365110X65004504