Journal
DALTON TRANSACTIONS
Volume 42, Issue 23, Pages 8504-8511Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt50782c
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- NSFC [21173037, 21274017]
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Three novel one-dimensional (1D) lanthanide coordination complexes involving the 4-methyl-3-nitrobenzoic acid (HL) ligand, with the general formulae [Gd(L)(3)(H2O)(CH3OH)] (1), [Gd(L)(3)(H2O)(2)]center dot(4,4'-bpy)center dot CH3OH (2), [Dy(L)(3)(H2O)(CH3OH)] (3), have been synthesized by solvothermal reactions. These complexes have been structurally characterized by single-crystal X-ray diffraction, IR, PXRD, TGA, and elemental analysis. Complexes 1 and 3 are isostructural except for the distinction of the metal ion. Magnetic measurements indicate that complexes 1-3 show antiferromagnetic behaviors. Complex 3 behaves with slow relaxation of the magnetization, where the frequency-dependent out-of-phase signals are noticed. However, the characteristic maxima were not reached above 2 K under zero direct current (DC) fields. When a DC field of 5000 Oe was employed, the frequency dependent peaks of alternating current (AC) signals were obtained.
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