Synthesis,crystal structure,and magnetic property of a stepped tetranuclear copper(II) complex of 3,5-diisopropylpyrazole-1-methoxide |
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Affiliation: | 1. Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea;2. Department of Chemistry Education and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea |
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Abstract: | Reaction of copper(II) chloride dihydrate in methanol with deprotonated 3,5-diisopropylpyrazole-1-methanol (dippmOH) led to the tetranuclear copper(II) complex [(dippmO)CuCl]4 (1). The crystal structure of 1 indicates that two copper(II) ions connect via the oxygen atoms of dippmO− ligands each other in which two dimeric units are formed. Furthermore, one of the coordinated oxygen atoms in a dimer is bonded to an adjacent copper(II) ion positioned other dimer, which gives rise to a stepped tetranuclear structure. 1 shows strong antiferromagnetic interactions through the oxo groups within the dimeric units (J1 = − 239 cm− 1) and weak antiferromagnetic couplings between the dimers (J2 = − 15 cm− 1). |
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