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2.
Acta Crystallogr C ; 56 ( Pt 8): 943-4, 2000 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10944282

RESUMO

The title compound, [Zn(C(7)H(8)NO(3)S)(2)(H(2)O)(4)], has an octahedral coordination around the central Zn atom composed of two axial N atoms from the pyridine ligands and four equatorial O atoms of water molecules, forming a monomeric centrosymmetric complex. The two Zn-N bond distances are 2.102 (3) A, while the four Zn-O bond distances range from 2.114 (2) to 2.167 (2) A. Packing is determined by hydrogen bonds formed by the water molecules. The sulfonate group does not take part in coordination to the Zn atom.


Assuntos
Compostos Organometálicos/química , Piridinas/química , Cristalografia por Raios X , Ligação de Hidrogênio , Modelos Moleculares , Conformação Molecular
3.
Acta Crystallogr C ; 56(Pt 6): E274-5, 2000 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-15263128

RESUMO

In the crystal structure of the title compound, C(12)H(10)N(4), the pyridine ring makes a dihedral angle of 1.12 (9) degrees with the mean plane of the complete almost planar and crystallographically centrosymmetric molecule. There are stacks of parallel molecules along the a-axis direction, with alternate stacks having a herring-bone arrangement relative to each other and an interplanar spacing of 3.551 A.

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