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Updated: Jul 18, 2026

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
Polyoxometalate (W/Mo) compounds connected via lanthanide cations with a three-dimensional framework,
Xiutang Zhang1, Daqi Wang, Jianmin Dou
1Department of Chemistry, Shandong University, Jinan 250100, China, Department of Chemistry, Liaocheng University, Liaocheng 252000, China, and Department of Physics, Shandong University, Jinan 250100, China.
Abstract:
A series of 10 novel polyoxometalate (W/Mo) compounds connected via a trivalent lanthanide cation bridge, H2{[K(H2O)2]2[Ln(H2O)5]2(H2M12O42)}.n(H2O) (Ln = La, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu; M = W or W/Mo) (1-10), were designed and synthesized on the basis of the abduction of Al3+ in aqueous solution. X-ray diffraction analyses reveal that the structures of complexes 1-10 are three-dimensional frameworks assembled from the arrangement of H2M12O42(10-) (named paradodecmetalate-B) and Ln(H2O)53+ with two planes, which are constructed via the unification of H2M12O42(10-) and Ln(H2O)53+, along the [100] and [001] directions. Magnetic measurements reveal the paramagnetic properties and a strong ferromagnetic coupling between the two nearest-neighboring lanthanide cations, Ln3+ (Ln = Dy, Er), within the circle for compounds 2 and 4-9.
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