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Single-Molecule Magnet Rods: Remarkably Elongated Lanthanide Phosphonate Cores with Quasilinear Hydrazones.
Inorg Chem
September 2024
Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China.
Article Synopsis
- - The text discusses the synthesis of elongated lanthanide core topologies, specifically focusing on four new rod-shaped dysprosium phosphonate clusters created by using lanthanide 1-naphthylmethylphosphonates and different terminated pyrazinyl hydrazones.
- - These dysprosium clusters are surrounded by terminal co-ligands known as pentadentate bis-chelates, and a sodium ion is used as a cation template to help shape the clusters.
- - The elongation of these rod-shaped clusters notably affects their magnetic relaxation behavior, changing it from a one-step process to more complex multi-step processes based on the specific cluster structure.
Different anion (NO and OAc)-controlled construction of dysprosium clusters with different shapes.
Dalton Trans
March 2024
School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China.
The complex hydrolysis process and strong uncertainty of self-assembly rules have led to the precise synthesis of lanthanide clusters still being in the "blind-box" stage and simplifying the self-assembly process and developing reliable regulation strategies have attracted widespread attention. Herein, different anions are used to induce the construction of a series of dysprosium clusters with different shapes and connections. When the selected anion is NO, it blocks the coordination of metal sites around the cluster through the terminal group coordination mode, thereby controlling the growth of the cluster.
View Article and Find Full Text PDFToroidal moment and dynamical control in luminescent 1D and 3D terbium calixarene compounds.
Chem Sci
July 2023
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
A toroidal moment can be generated spontaneously in inorganic (atom-based) ferrotoroidic materials that breaks both time-reversal and space-inversion symmetries, attracting great attention in solid-state chemistry and physics. In the field of molecular magnetism, it can also be achieved in lanthanide (Ln) involved metal-organic complexes usually with a wheel-shaped topological structure. Such complexes are called single-molecule toroics (SMTs), presenting unique advantages in spin chirality qubits and magnetoelectric coupling.
View Article and Find Full Text PDFLanthanides Singing the Blues: Their Fascinating Role in the Assembly of Gigantic Molybdenum Blue Wheels.
ACS Nanosci Au
June 2022
Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria.
Molybdenum blues (MBs) are a distinct class of polyoxometalates, exhibiting versatile/impressive architectures and high structural flexibility. In acidified and reduced aqueous environments, isopolymolybdates generate precisely organizable building blocks, which enable unique nanoscopic molecular systems (MBs) to be constructed and further fine-tuned by hetero elements such as lanthanide (Ln) ions. This Review discusses wheel-shaped MB-based structure types with strong emphasis on the ∼30 Ln-containing MBs as of August 2021, which include both organically hybridized and nonhybridized structures synthesized to date.
View Article and Find Full Text PDFSupramolecular Assembly of U(IV) Clusters and Superatoms with Unconventional Countercations.
J Am Chem Soc
May 2020
Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States.
Superatoms are nanometer-sized molecules or particles that form ordered lattices, mimicking their atomic counterparts. Hierarchical assembly of superatoms gives rise to emergent properties in lattices of quantum dots, p-block clusters, and fullerenes. Here, we introduce a family of uranium-oxysulfate cluster anions whose hierarchical assembly in water is controlled by two parameters: acidity and the lanthanide or transition-metal countercation.
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