%0 Journal Article %J Polish Journal of Chemistry %D 1996 %T Physico-chemical properties of Cu(II) complexes of bis-salicylidene-1,2-phenylenediamine and bis-(3,5-dichlorosalicylidene)-1,2-phenylenediamine %A Dziembowska, T. %A Guskos, N. %A Typek, J. %A Grech, E. %A V. Likodimos %A Wabia, M. %A Fuks, H. %A Ramos, J. %A Palios, G. %A Kawecka, J. %X The powder samples of Cu(II) complexes of bis-salicylidene-1,2-phenylenediamine (complex I) and bis-(3,5-dichlorosalicylidene)-1,2-phenylenediamine (complex II) have been prepared and investigated by magnetic, IR, UV/VIS and EPR methods. From IR similar chemical structures for both complexes have been proposed. The electronic spectra support the square-planar geometry of both complexes. Magnetic susceptibility of complex I has shown typical paramagnetic behaviour for spin S = 1/2 with some ferromagnetic interaction, but no ferromagnetic order down to 1.7 K. The observed EPR spectra for both complexes are dominated by resonances arising from coupled pairs of copper ions in the temperature range investigated. %B Polish Journal of Chemistry %V 70 %P 1425-1434 %G eng %U https://www.scopus.com/inward/record.uri?eid=2-s2.0-21444436849&partnerID=40&md5=b2df7a5c1f89ae6820cd4686b9799fc3