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Effect of N ancillary ligands on the structure, nuclearity and magnetic behavior of Cu(<scp>ii</scp>)–pyrazolecarboxylate complexes
- Source :
- New Journal of Chemistry. 40:10504-10511
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- In the absence/presence of different N ancillary ligands, four copper(II)-pyrazolecarboxylate complexes, [Cu(HMPCA)2(ImH)2]·2H2O (1), [Cu2(MPCA)2(H2O)4] (2), [Cu2(MPCA)2(4,4′-bpy)(H2O)2]n·5nH2O (3) and [Cu3(MPCA)3(Phen)3]2·2EtOH·15H2O (4) (H2MPCA = 5-methyl-1H-pyrazole-3-carboxylic acid, ImH = imidazole, 4,4′-bpy = 4,4′-bipyridine and Phen = 1,10-phenanthroline) were obtained. All complexes have been structurally characterized. Compounds 2 and 3 containing the same bis(μ-pyrazolato)dicopper(II) planes range from dinuclear to 1D polymer. Trinuclear complex 4 contains the first reported cyclic-trinuclear copper(II)–pyrazolato structure without any μ3 ligand core. Magnetic susceptibility data show that complexes 2–4 exhibit antiferromagnetic couplings between the adjacent magnetic centers.
- Subjects :
- 010405 organic chemistry
Ligand
Chemistry
Stereochemistry
chemistry.chemical_element
General Chemistry
010402 general chemistry
01 natural sciences
Copper
Magnetic susceptibility
Catalysis
0104 chemical sciences
Crystallography
chemistry.chemical_compound
Materials Chemistry
Antiferromagnetism
Imidazole
Subjects
Details
- ISSN :
- 13699261 and 11440546
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- New Journal of Chemistry
- Accession number :
- edsair.doi...........419ecda927e21d40ff6e7c3b96f0cf86