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Crystal and molecular structure of [Zn(II)]2(diacetoamidoglutarate)2 hexaaquo·2H2O, an unusual macrocyclic dimer with pentacoordinated Zn in a slightly distorted trigonal bipyramid (1994)

Gómez-Lara, J. ; Toscano, R. A. ; Negrón, G. ; [weitere]

Springer

Journal of chemical crystallography 24 (1994), S. 441-444

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Details

ISSN: 1572-8854

Schlagwort(e): [Zn(II)]2(DAG)2 ; trigonal bipyramid

Quelle: Springer Online Journal Archives 1860-2000

Thema: Geologie und Paläontologie , Physik

Notizen: Abstract The crystal and molecular structure of the title compound, [Zn(II)]2(DAG)2, were determined and the results compared with those obtained for similar N-protected amino acids. In the crystalline state, 16-membered macrocyclic dimers are held together by hydrogen bridges in a triclinic $$P\bar 1$$ lattice. The Zn(II) ions are pentacoordinated to oxygens in a slightly distorted trigonal bipyramid. The trigonal plane is formed by two carboxylic oxygens and an oxygen atom from a water molecule, whereas the apical positions are occupied by two other oxygens from the remaining coordinated water molecules. The ligands form bridges between cations providing the cyclic dimers, whereas similar but shorter systems form pseudo polymer sheets.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01666092

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