Synthesis, structure and magnetic properties of the first copper(II) complex with an (E)-4-aryl-4-oxo-2-butenoato ligand |
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| Authors: | Zoran M Miodragovi&#x; Goran A Bogdanovi&#x; Bojana B Kraj
inovi&#x; Branko J Drakuli&#x; Vladan B Kusigerski Djenana U Miodragovi&#x; Vojislav V Spasojevi&#x; Ismet M Hodi&#x; Ivan O Jurani&#x; |
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| Affiliation: | aFaculty of Chemistry, University of Belgrade, P.O. Box 158, 11001 Belgrade, Serbia and Montenegro;bVINČA Institute of Nuclear Sciences, Laboratory of Theoretical Physics and Condensed Matter Physics, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro;cDepartment of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia and Montenegro |
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| Abstract: | A new binuclear Cu(II) complex with an (E)-4-(2,4-diisopropylphenyl)-4-oxo-2-butenoato ligand (L) was successfully synthesized and characterized by elemental analysis and IR-spectroscopy. The structures of (E)-4-(2,4-diisopropylphenyl)-4-oxo-2-butenoic acid (HL), and the corresponding (tetrakis)-μ-(E)-4-(2,4-diisopropylphenyl)-4-oxo-2-butenoato]-bis(ethanol)-copper(II) complex, Cu2L4(C2H5OH)2], were determined by single crystal X-ray analyses and are preliminarily discussed. This is the first complex of a transition metal with ligand L, as well as the first determined crystal structure of a metal complex with this type of ligand. Analysis of the magnetic susceptibility measurements of the isolated Cu2L4(C2H5OH)2] · H2O complex shows the existence of a strong anti-ferromagnetic intradimer coupling, with an exchange integral value 2J of −260 cm−1. |
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| Keywords: | (E)-4-(2 4-diisopropylphenyl)-4-oxo-2-butenoato ligand Cu(II) complexes X-ray analysis Magnetic properties |
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