Poly[di-µ9-citrato-tetra-sodiumzinc].
Acta Crystallogr Sect E Struct Rep Online
; 69(Pt 12): m672, 2013 Nov 20.
Article
em En
| MEDLINE
| ID: mdl-24454178
ABSTRACT
In the title compound, [Na4Zn(C6H5O7)2] n , the Zn(II) ion lies on an inversion center and is coordinated by six O atoms from two citrate ligands, forming a distorted octa-hedral geometry. There are two crystallographically independent Na(+) cations in the asymmetric unit. One Na(+) cation exhibits a distorted square-pyramidal geometry defined by five O atoms from four citrate ligands. The other Na(+) cation is surrounded by six O atoms from five citrate ligands in a distorted octa-hedral geometry. The Na(+) cations are bridged by citrate carboxyl-ate groups, forming a layer parallel to (100). The layers are further assembled into a three-dimensional network with the [Zn(citrate)2](4-) building units as 'pillars'; O-Hâ¯O hydrogen bonds also stabilize the structure.
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MEDLINE
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En
Ano de publicação:
2013
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Article