Synthesis, structures and magnetic properties of oxamido-bridged trinuclear Cu-M-Cu macrocyclic complexes (M = Mn(II) and Co(II)) |
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| Authors: | Rui-hong Zhang |
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| Institution: | Department of Chemistry, Nankai University, Tianjin, China |
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| Abstract: | Two oxamido-bridged trinuclear complexes of formula {(LCu)(EtOH)]2Mn(EtOH)2}(ClO4)2 (1) and {(LCu)(EtOH)]2Co(EtOH)2}(ClO4)2 · 2H2O (2) (H2L = 2,3-dioxo-5,6:13,14-dichlorobenzo-7,12-diphenyl-1,4,8,11-tetraazacyclo-pentadeca-7,11-diene) have been synthesized and structurally characterized. The central ions of complexes 1-2 (Mn(II), Co(II)) are all bridged by macrocyclic oxamido groups. Their magnetic properties were studied by susceptibility versus temperature measurement, the best fitting of the experimental data led to J = −16.91 cm−1 for 1 and J = −27.73 cm−1 for 2. |
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| Keywords: | Oxamido-bridged Trinuclear Macrocyclic Magnetic properties |
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