Hydrothermal assembly strategy for the construction of oxygen‐bridging lanthanide‐substituted bilacunary Keggin‐type germanotungstate tetramers encapsulating [W3O12]6− connector DOI

Ying He,

Yue‐Mei Cao,

Xin‐Yue Pei

et al.

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(47)

Published: Dec. 15, 2023

Abstract Under the hydrothermal condition and presence of organic amines, incorporating lanthanide (Ln) ions into monolacunary Keggin‐type germanotungstate precursor resulted in formation two new complex clusters formulated as H 17 (H 2 en) 5 [K 3 O)(GeW 10 O 37 TbOTb) 4 ( μ 6 ‐W 12 )] ⋅ 45H GeW‐Tb ) 22 (GeW EuOEu) O)( 44H GeW‐Eu (en=ethylenediamine), which have been structurally characterized by elemental analyses, ICP analysis, IR spectra, thermogravimetric bond valence sum calculations single‐crystal X‐ray diffraction. The most prominent structural feature revealed an unprecedented oxygen‐bridging Ln‐substituted bilacunary tetramers encapsulating [W ] 6− connector. What's more interesting is that a versatile library linkable units including [α‐GeW 10− , internal oxo group between Ln ions, well central tritungstate intermediate are all generated situ thanks to potential promotion reaction system. In particular, possible assembly mechanism for proposed, their solid‐state photoluminescence properties also discussed detail. To our knowledge, both intermediates highly robust POM building blocks were first discovered. studies highlight diversity germanotungstates provide direction design other functional based POMs future.

Language: Английский

Recent advances in mono-lacunary Keggin-type polyoxometalate-based crystalline materials: From synthetic strategies, diverse structures to functional applications DOI
Miao Wang, Jingyu Pang, Jingping Wang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 508, P. 215730 - 215730

Published: March 11, 2024

Language: Английский

Citations

17
Polyoxometalate nanomaterials for enhanced reactive oxygen species theranostics DOI
Jiale Liu, Mengyao Huang, Xinyu Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 472, P. 214785 - 214785

Published: Sept. 2, 2022

Language: Английский

Citations

56
Recent advances in polyoxometalate-based single-molecule magnets DOI

Zeng-Xi Yang,

Feng Gong, Dunmin Lin

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 492, P. 215205 - 215205

Published: June 6, 2023

Language: Английский

Citations

28
Yb-to-Eu Cooperative Sensitization Upconversion in a Multifunctional Molecular Nonanuclear Lanthanide Cluster in Solution DOI
Sai P. K. Panguluri,

Elsa Jourdain,

Papri Chakraborty

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(19), P. 13083 - 13092

Published: May 3, 2024

Lanthanide metal clusters excel in combining molecular and material chemistry properties. Here, we report an efficient cooperative sensitization UC phenomenon of a Eu3+/Yb3+ nonanuclear lanthanide cluster CD3OD. The synthesis characterization the heteronuclear solid state solution are described together with showing Eu3+ luminescence visible region upon 980 nm NIR excitation Yb3+ at concentrations as low 100 nM. Alongside being Eu/Yb to display (with quantum yield value 4.88 × 10–8 1.13 W cm–2 nm), exhibits downshifted light emission 578 Eu3+, which is ascribed pathways for Yb through 5D0 energy levels Eu3+. Additionally, faint also observed ca. 500 excitation, originating from Yb3+. [Eu8Yb(BA)16(OH)10]Cl (BA = benzoylacetonate) field-induced single-molecular magnet (SMM) under 4K modest Ueff/kB 8.48 K, thereby joining coveted list Yb-SMMs emerging prototype system next-generation devices, magnetism cluster.

Language: Английский

Citations

10
Single-Molecule Magnet Behavior of Confined Dy(III) in a Mixed Heteroatom-Substituted Polyoxotungstate DOI
Sandhya Kapurwan, Pradip Kumar Sahu, Sanjit Konar

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(10), P. 4492 - 4501

Published: Feb. 28, 2024

Two heteroatom-templated Dy(III)-confined polyoxotungstates [H2N(CH3)2]7Na7[Dy2(H2O)7(W4O9)(HPSeW15O54)(α-SeW9O33)2]·31H2O (1) and [H2N(CH3)2]14K2Na18{[Dy2(H2O)13W14O40]2[α-SeW9O33]4[HPSeW15O54]2}·44H2O (2) were synthesized by a one-pot aqueous reaction structurally characterized. The most distinctive structural feature of complexes 1 & 2 is the simultaneous presence both trivacant Keggin [α-SeW9O33]8– Dawson [HPSeW15O54]10– building blocks containing P(III)–Se(IV) heteroatoms. trimeric polyanion can be represented as fusion two units encapsulating [Dy2(H2O)7(W4O9)]12+ cluster. On other hand, hexameric polyoxoanions are described four [HPSeW15O54]10–, anchoring [Dy4(H2O)26W28O80]20+ magnetic investigation revealed significant anisotropy slow relaxation magnetization behavior for complex with phenomenological energy barrier, Ueff = 13.58 K in absence an external field, 24.57 500 Oe dc field. favors QTM process field shows field-induced 11.11 at 1500 applied in-depth analysis dynamics that follows Orbach well Raman pathways. Further, ab initio calculation studied confirms highly axial ground first excited states (containing pure highest mJ states) responsible observed single-molecule magnet (SMM) behavior. Remarkably, this example mixed heteroatom-based Dy(III)-substituted polyoxotungstate showing SMM

Language: Английский

Citations

7
Functional lanthanide complexes with N,N′-bis(2-hydroxybenzyl)-N,N′-bis(pyridin-2-ylmethyl)ethylenediamine (H2bbpen) derivatives: Coordination chemistry, single-molecule magnetism and optical properties DOI
Yun-Xia Qu,

Pei-Yu Liao,

Yan‐Cong Chen

et al.

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 475, P. 214880 - 214880

Published: Oct. 13, 2022

Language: Английский

Citations

19
Photoluminescent and Magnetic Properties of Isostructural Europium(III), Gadolinium(III) and Terbium(III) Oxamate-Based Coordination Polymers DOI
Cleverton O. C. da Silveira, Willian X. C. Oliveira, Eufrânio N. da Silva Júnior

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(36), P. 14995 - 15009

Published: Jan. 1, 2024

Developing and investigating advanced multifunctional materials with magnetic properties as candidates for assembling spin qubits quantum computing is imperative. A new polytopic ligand based on oxamate aniline was used to promote the synthesis of three neutral homometallic lanthanide-coordinated polymers. New complexes formula {Ln(phox)

Language: Английский

Citations

4
Lanthanide-Based Single-Molecule Magnets Derived from Lacunary Polyoxometalates DOI
Kazutaka Hirakawa, Yoshihiro Sekine, Fumiya Kobayashi

et al.

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Language: Английский

Citations

0
Multifunctional lanthanide(III) single-molecule magnets displaying luminescence thermometry: Progress, challenges, and future directions DOI
Airton G. Bispo‐Jr

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 537, P. 216685 - 216685

Published: April 15, 2025

Language: Английский

Citations

0
Coherent Spin Manipulation in Mononuclear Gadolinium-Substituted Polyoxometalate–Organic Hybrids DOI
Corina Rodríguez-Esteban, Estibaliz Ruiz‐Bilbao,

Janire Bustamante-Fernández

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 3072 - 3077

Published: March 18, 2025

While most research on molecule-based electron spin qubits has focused S = 1/2 ions for single-qubit gates, the need qubit interactions in quantum operations driven interest higher-spin molecules and multilevel states. Herein, we study dynamics of two mononuclear gadolinium-substituted polyoxometalate-organic hybrids with general formula K5[Gd(α-XW11O39)(H2L)]·14H2O (X Si, Ge; H2L N,N'-dimethyl-N,N'-bis(2-hydroxy-3-formyl-5-bromobenzyl)ethylenediamine), 1Si-Gd 1Ge-Gd. Pulsed EPR measurements reveal spin-lattice relaxation (T1) coherence (Tm) times up to 2315 2.6 μs at 3 K, respectively, diamagnetically diluted samples, as well Rabi oscillations 20 K. The obtained results make 1Ge-Gd few Gd-based complexes displaying such behavior, highlighting challenge coherently manipulating states Gd. Moreover, their hybrid organic-inorganic nature endows them chemical robustness solution stability, essential prerequisites surface immobilization future integration practical devices.

Language: Английский

Citations

0