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Title: Structural characterization of a new polymeric Cu(II) complex with unexpected chlorinated pyrazole ligand
Author: López Marzo, Adaris M.
Guerrero, Miguel
Calvet Pallàs, Maria Teresa
Font Bardia, Ma. Mercedes
Pons, J.
Keywords: Química organometàl·lica
Estructura cristal·lina (Sòlids)
Organometallic chemistry
Layer structure (Solids)
Issue Date: May-2015
Publisher: Elsevier B.V.
Abstract: A newcoordination polymer based on copper(II) and pyrazole (pzH) ligand, [CuCl2(ClpzH)2]n, has been obtained by a very easy synthesis and green reaction conditions using water as solvent. The compound was characterized by single crystal X-ray diffraction elemental analyses, infrared and UV-Vis spectroscopies. For the first time the C(2)-chlorination of the pyrazolyl ring keeping the protonation of the N(2)-H is reported. The polymeric crystal structure consists of a one dimensional infinite neutral chain inwhich the copper(II) atoms are six-coordinated in a slightly distorted octahedral geometry with two nitrogen and four chlorine atoms. In this structure, intermolecular interactions have been identified and studied. Extended structure analyses revealed a novel two-dimensional network supported by intermolecular N\H\Cl and C\H\Cl hydrogen bonds, in addition to the π-π stacking interactions.
Note: Versió postprint del document publicat a:
It is part of: Inorganic Chemistry Communications, 2015, vol. 55, p. 51-55
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ISSN: 1387-7003
Appears in Collections:Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)

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