摘要 : Trinuclear lanthanide complexes of the formula [Ln(3)(PPDA)(NO3)(6)(H2O)(2)](.)NO(3)(.)2H(2)O where Ln=La(III), Pr(III), Sm(III), Nd(III), Eu(III) Gd(III) Tb(III), Dy(III) and Y(III); H(2)PPDA = N,N'-bis(2-pyridinyl)-2,6-pyridined... 展开 Trinuclear lanthanide complexes of the formula [Ln(3)(PPDA)(NO3)(6)(H2O)(2)](.)NO(3)(.)2H(2)O where Ln=La(III), Pr(III), Sm(III), Nd(III), Eu(III) Gd(III) Tb(III), Dy(III) and Y(III); H(2)PPDA = N,N'-bis(2-pyridinyl)-2,6-pyridinedicarboxamide, have been isolated. The complexes were characterized by elemental analyses, conductivity measurements, magnetic susceptibility measurements and spectral (IR, NMR, UV-vis, fluorescence, FAB and EPR) and thermal studies. (c) 2005 Elsevier B.V. All rights reserved. 收起