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Inicio » Actividades I+D > Publicaciones 2009 > Aquabis[1-hydroxy-2-(imidazol-3-ium-1-yl...
artículo con referato
"Aquabis[1-hydroxy-2-(imidazol-3-ium-1-yl)-1,1′-ethylidenediphophonato-κ2O,O′]zinc(II) dihydrate"
E. Freire and D.R. Vega
Acta Cryst. E 65(11) (2009) m1430-m1431
In the title complex, [Zn(C5H9NO7P2)2(H2O)]·2H2O, the zinc atom is coordinated by two zoledronate anions [zoledronate = (2-(1-imidazole)-1-hydroxy-1,1′-ethylidenediphophonate)] and one water molecule. The coordination number is 5. There is one half-molecule in the asymmetric unit, the zinc atom being located on a twofold rotation axis passing through the metal centre and the coordinating water O atom. The anion exists as a zwitterion with an overall charge of -1; the protonated nitrogen in the ring has a positive charge and the two phosphonates groups each have a single negative charge. Intermolecular O–HO hydrogen bonds link the molecules. An N–HO interaction is also present.
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