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Unexpected formation and crystal structure of tetra-kis-(1H-pyrazole-?N (2))-palladium(II) dichloride.

ABSTRACT: The title salt, [Pd(C3H4N2)4]Cl2, was obtained unexpectedly by the reaction of palladium(II) dichloride with equimolar amounts of 1-chloro-1-nitro-2,2,2-tris-(pyrazol-yl)ethane in methanol solution. The Pd(2+) cation is located on an inversion centre and has a square-planar coordination sphere defined by four N atoms of four neutral pyrazole ligands. The average Pd-N distance is 2.000?(2)?Å. The two chloride anions are not coordinating to Pd(2+). They are connected to the complex cations through N-H?Cl hydrogen bonds. In addition, C-H?Cl hydrogen bonds are observed, leading to a three-dimensional linkage of cations and anions.

SUBMITTER: Wagner T

PROVIDER: S-EPMC4257448 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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Unexpected formation and crystal structure of tetra-kis-(1H-pyrazole-κN (2))-palladium(II) dichloride.

Wagner Thomas T Christiansen Nena N Hrib Cristian G CG Kaufmann Dieter E DE Edelmann Frank T FT

Acta crystallographica. Section E, Structure reports online 20141115 Pt 12

The title salt, [Pd(C3H4N2)4]Cl2, was obtained unexpectedly by the reaction of palladium(II) dichloride with equimolar amounts of 1-chloro-1-nitro-2,2,2-tris-(pyrazol-yl)ethane in methanol solution. The Pd(2+) cation is located on an inversion centre and has a square-planar coordination sphere defined by four N atoms of four neutral pyrazole ligands. The average Pd-N distance is 2.000 (2) Å. The two chloride anions are not coordinating to Pd(2+). They are connected to the complex cations through ...[more]

PMID: 25552973

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