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A second monoclinic polymorph of (pyridine-2-carboxaldehyde oximato-?N,N')(pyridine-2-carboxaldehyde oxime-?N,N')palladium(II) chloride.

ABSTRACT: The asymmetric unit of the title compound, [Pd(C(6)H(5)N(2)O)(C(6)H(6)N(2)O)]Cl, contains one half of a cationic Pd(II) complex and a Cl(-) anion, with a crystallographic mirror plane parallel to the ac plane passing through the Pd and Cl atoms. In the complex, the Pd(II) ion is four-coordinated in a distorted square-planar environment by four N atoms derived from the two chelating ligands. The hy-droxy H atom lies on the mirror plane and so is equidistant from the O atoms. This indicates that the negative charge is delocalized over the two O atoms. The complex mol-ecules are stacked in columns along the c axis and are connected by C-H?O hydrogen bonds, forming a three-dimensional network. The structure reported herein represents a new monoclinic polymorph of the previously reported monoclinic (C2/c) form [Torabi et al. (2007 ?). Z. Kristallogr. New Cryst. Struct. 222, 197-198].

SUBMITTER: Ha K

PROVIDER: S-EPMC3274904 | biostudies-other | 2012 Feb

REPOSITORIES: biostudies-other

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A second monoclinic polymorph of (pyridine-2-carboxaldehyde oximato-κN,N')(pyridine-2-carboxaldehyde oxime-κN,N')palladium(II) chloride.

Ha Kwang K

Acta crystallographica. Section E, Structure reports online 20120121 Pt 2

The asymmetric unit of the title compound, [Pd(C(6)H(5)N(2)O)(C(6)H(6)N(2)O)]Cl, contains one half of a cationic Pd(II) complex and a Cl(-) anion, with a crystallographic mirror plane parallel to the ac plane passing through the Pd and Cl atoms. In the complex, the Pd(II) ion is four-coordinated in a distorted square-planar environment by four N atoms derived from the two chelating ligands. The hy-droxy H atom lies on the mirror plane and so is equidistant from the O atoms. This indicates that t ...[more]

PMID: 22346851

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