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Dichlorotetrakis(3-phenylpyrazole-kappaN2)copper(II).
Magdalena Małecka1, Lilianna Checińska
1Department of Crystallography and Crystal Chemistry, University of Łódź, Pomorska 149/153, PL-90236 Łódź, Poland. malecka@uni.lodz.pl
Summary
This study details the crystal structure of a copper(II) chloride complex with pyrazole ligands. The research reveals octahedral coordination around copper ions and intramolecular hydrogen bonds forming five-membered rings.
Area of Science:
- Coordination Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Copper(II) chloride complexes are important in catalysis and materials science.
- Pyrazole ligands offer versatile coordination modes and hydrogen bonding capabilities.
- Understanding the solid-state structure is crucial for predicting chemical properties.
Purpose of the Study:
- To elucidate the crystal structure of the novel compound [CuCl(2)(C(9)H(8)N(2))(4)].
- To investigate the coordination environment of the copper(II) ion.
- To characterize the hydrogen bonding interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Structural elucidation using crystallographic software.
- Analysis of coordination geometry and hydrogen bonding networks.
Main Results:
- The asymmetric unit contains two independent molecules of [CuCl(2)(C(9)H(8)N(2))(4)].
- Copper(II) ions exhibit octahedral coordination with two chloride ligands and four pyrazole nitrogen atoms.
- Intramolecular hydrogen bonds involving pyrazole N-H groups form five-membered rings incorporating the copper atoms.
Conclusions:
- The compound [CuCl(2)(C(9)H(8)N(2))(4)] displays a unique coordination mode and hydrogen bonding pattern.
- The observed structure provides insights into the self-assembly of metal-organic frameworks.
- This work contributes to the understanding of copper(II) coordination chemistry with nitrogen-containing heterocycles.