Synthesis, X-ray spectral, and magnetochemical study of copper complexes based on tridentate azomethines of 3-allylsalicylaldehyde
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- Burlov, A.S., Vlasenko, V.G., Zubavichus, Y.V. et al. Russ J Coord Chem (2013) 39: 347. doi:10.1134/S1070328413040039
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Tridentate azomethine ligands (H2L) based on 3-allylsalicylaldehyde and o-aminophenol, o-aminothiophenol, or 2-ethylamino-5-nitroaniline were synthesized and identified by IR and 1H NMR spectroscopies. The structure of complexes (Ia-Ic) was studied by magnetochemistry and EXAFS spectroscopy. Complexes Ia and Ib (X = O, S) are binuclear and exhibit antiferromagnetic exchange interaction: 2J = −36.5 and −950 cm−1, respectively. Complex Ic (X = NC2H5) is mononuclear (μeff = 1.75 μB at 275 K and does not change as temperature decreases).