Abstract
A series of isostructural two-dimensional lanthanide complexes with the formula [Ln(Haqtc)(H 2 O) 4 ·xH 2 O] n (Ln = Nd, 1 ; Sm, 2 ; Eu, 3 ; Tb, 4 ; Dy, 5 ; Er, 6 .) were synthesized by treating H 4 aqtc (H 4 aqtc = anthraquinone-1,4,5,8-tetracarboxylic acid) with lanthanide(III) salts under hydrothermal conditions. 3-D structures are formed by inter-layer hydrogen bonds. Magnetic susceptibility measurements of complexes 4 and 5 in temperature range 2–300 K were performed, which showed dominant weak ferromagnetic interactions in 4 and slow magnetization relaxation in 5 . Six isostructural lanthanide complexes, based on anthraquinone-1,4,5,8-tetracarboxylic acid (H 4 aqtc), showed layer-like structures and 3-D frameworks formed by interlayer hydrogen bonds. The magnetic properties of complexes 4 and 5 were investigated. ► Six isostructural lanthanide complexes were synthesized and characterized. ► 3-D structures are formed by inter-layer hydrogen bonds. ► Magnetic properties results showed slow magnetization relaxation in complex 5.
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