Syntheses, crystal structures and magnetic properties of two heterometallic coordination polymers

Two heterometallic chain coordination polymers with the chemical formula {[Cu2Mn2L2(CH3OH)(H2O)] · 0.5CH3OH · 0.5CH3CH2OH}n (1) and {[Cu2Co2L2(H2O)2] · H2O}n (2) have been synthesized and characterized by IR, UV spectroscopy and single-crystal X-ray structural analysis, where H4L = 2-hydroxy-3-[(E)-({2-[(2-hydroxybenzoyl)amino]ethyl}imino)methyl] benzoic acid. Magnetic measurements showed that the two compounds exhibit antiferromagnetic coupling exchange interactions, and satisfactory fittings to the observed magnetic susceptibility data were obtained by assuming a linear four-spin arrangement with two isotropic magnetic exchange interactions.

Two heterometallic coordination polymers with the chemical formula {[Cu2Mn2L2(CH3OH)(H2O)] · 0.5CH3OH · 0.5CH3CH2OH}n (1) and {[Cu2Co2L2(H2O)2] · H2O}n (2) have been synthesized and characterized by IR, UV spectroscopy and single-crystal X-ray structural analysis, where H4L = 2-hydroxy-3-[(E)-({2-[(2-hydroxybenzoyl)amino]ethyl}imino)methyl] benzoic acid. The magnetic measurements showed that two compounds exhibit antiferromagnetic coupling exchange interactions, and satisfactory fittings to the observed magnetic susceptibility data were obtained by assuming a linear four-spin arrangement with two isotropic magnetic exchange interactions.Figure optionsDownload as PowerPoint slide