doiSerbia

Synthesis and crystal structure of Cu(II) and Co(II) complexes with 1,3-dimethyl-pyrazole-5-carboxylic acid ligand

Jaćimović Željko K. (University of Montenegro, Faculty of Metallurgy and Technology, Podgorica, Montenegro)
Kosović Milica (University of Montenegro, Faculty of Metallurgy and Technology, Podgorica, Montenegro)
Novaković Slađana B. (VINČA Institute of Nuclear Sciences, Laboratory of Theoretical Physics and Condensed Matter Physics, Belgrade)
Giester Gerald (Univ. Wien Althanstraße, Fakultät für Geowissenschaften, Geographie und Astronomie, Institut für Mineralogie und Kristallographie, Wien, Austria)
Radović Ana (Accreditation body of Montenegro, Podgorica, Montenegro)

In the reaction of 1,3-dimethyl-pyrazole-5-carboxylic acid (HL) with M(OAc)2•4H2O, (M = Cu, Co) two novel complexes have been prepared, square-planar [CuL2(H2O)2] and octahedral [CoL2(MeOH)4]. The crystal structures have been determined by single-crystal X-ray diffraction. In both complexes the deprotonated acid displays monodentate coordination to the metal ions. According to the results of CSD survey this is the first structural report on the metal complexes with N1-substituted pyrazole-5-carboxylic ligand.

Keywords: pyrazole based ligand, transition metal complex, crystal structure

Projekat Ministarstva nauke Republike Srbije, br. 172014 i br. 172035