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Doubly bridged molecular ribbons in the structure of an ionic complex, hydronium zinc(II) pyrazine-2,3-dicarboxylate

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The structure of dihydronium [ catena -bis(µ-pyrazine-2,3-dicarboxylato-N,O,O')zinc(II)], (H3O)2[Zn(2,3PZDC)2], is composed of polyanionic ribbons of zinc(II) ions linked by double bridging 2,3-PZDC ligand molecules. Each ligand uses an N,O bonding moiety formed by one carboxylic group [Zn–O 2.071(2)?Å; Zn–N 2.184(2)?Å] and a monodentate oxygen atom of the other carboxylate group [Zn–O 2.092(2)?Å]. Coordination around the zinc(II) ion is strongly distorted octahedral. Hydronium cations (H3O) 1+ link the ribbons by hydrogen bonds.
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Keywords: Pyrazine-2,3-dicarboxylic acid; X-ray structure analysis; Zinc complex

Document Type: Research Article

Affiliations: 1: Office for Medicinal Products, Medical Devices and Biosides, ul. Chełmska 30/34, 00-725 Warszawa, Poland 2: Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03-195 Warszawa, Poland

Publication date: July 20, 2005

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