Получение и магнитные свойства гетерометаллических комплексов на основе метокси-замещенных [beta] - дикетонатов металлов

Abstract

New heterometallic complexes of the composition [Pb(zif)2M2(hfa)4 ], where М=Co (1), Ni (2); zif=1,1,1-trifluoro-5-methoxy-5-methylhexane-2,4-dionato, hfa-1,1,1,5,5,5-hexafluoropentane-2,4-dionato; and [(Ln(F1)2dpm)2Cu(dpm)2], where Ln=La (3), Pr (4), Sm (5), Gd (6), F1=1,1,1-trifluoro-5,5-dimethoxypentane2,4-dionato, dpm=2,2,6,6-tetramethylheptane-3,5-dionato, were synthesized by co-crystallization of the corresponding monometallic metal [beta] -diketonates from organic solvents. The crystal structure of the complexes have been determined. The magnetic properties of th e obtained complexes were studied by the Faraday method. The Curie-Weiss law was established for 1-4, 6, but for 5 a nonlinear dependence of 1/x on T(K) was observed.