Abstract
The magnetic properties over the temperature range from 80°–300°K are reported for a number of copper(II) complexes with N-hydroxyalkylsalicylideneimines having empirical formulae (A) Cu(Sal·N·ROH)X and (B) Cu(Sal·N·RO), where Sal·N = · ▪·C 6H 4· ▪H = N·, ROH = CH 2CH 2OH, CH 2CH(CH 3)OH, C(CH 3) 2CH 2OH and CH 2CH 2CH 2OH, and X = Cl −, NO 3− and ClO 4−. Their magnetic properties differ depending upon the attached anion X or the R group. Of the (A) type of complexes, Cu(Sal·N·CH 2CH 2OH)Cl, Cu(Sal·N·CH 2CH 2OH)ClO 4·H 2O and Cu(Sal·N·CH 2CH(CH 3)OH) ClO 4·C 2H 5OH exhibited antiferromagnetic behavior conforming to the Bleaney-Bowers equation, while the other complexes showed normal paramagnetic properties. For the (B) type of complexes, Cu(Sal·N·CH 2CH 2CH 2O) exhibited antiferromagnetic behavior typical of binuclear copper(II) complexes, whereas the other complexes had ferromagnetic properties. The diffuse reflectance and i.r. spectra of these complexes have been measured in order to obtain information about their structure.
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