Effect of lanthanide contraction on a series of “sulfate-templated” transition-rare-earth metal clusters: Synthesis, structures and magnetic properties DOI Creative Commons

Kai‐Peng Bai,

Pengfei Sun, Mohamed Saber Lassoued

и другие.

Journal of Rare Earths, Год журнала: 2023, Номер 42(11), С. 2150 - 2155

Опубликована: Сен. 9, 2023

Twelve novel transition-rare-earth metal clusters, formulated as [Ni18Pr14(μ3OH)14 (dmpa)10 (mmt)10(SO4)4(CH3COO)16]∙9CH3OH∙5H2O (1, H3dmpa = dimethylolpropionic acid, and Hmmt 2-mercapto-5-methyl-1,3,4-thiadiazole) [Ni36RE102(OH)138 (mmt)18(Hdmpa)30(H2dmpa)12(CH3COO) 72(NO3)36(SO4)18(H2O)30]·Br6 (RE Nd (2), Sm (3), Eu (4) Gd (5)) [Ni12RE10(μ3-OH)10 (dmpa)8 (mmt)8(SO4)2(CH3COO)8(H2O)4]∙8CH3OH∙7H2O Tb (6), Dy (7), Ho (8), Er (9) Y (10)) [Ni8Pr8(μ3-OH)8 (mmt)8(Hdpga)16(CH3COO)8]·8CH3OH (11, H2dpga diphenyl-glycolic acid), [Ni16Tb6(μ3-OH)24 (mmt)8(Hdpga)4 (dpga)4(CH3COO)2(NO3)4(H2O)2]∙12CH3OH∙5H2O (12), were synthesized solvothermally by using different ligand combinations rare earth nitrates. X-ray crystal structure analyses reveal that complexes 1 12 possess sandwich-like structure. Compounds 2–5 are isostructural feature a hexagonal structure, shaped like "Star of David". Isostructural 6–10 present ring-like well the cluster 11. The structural variations these can be attributed to effect lanthanide contraction. Moreover, template SO42− anion derived from slow decomposition also plays significant role in formation skeletons. in-situ mechanism for generation sulfate is briefly discussed. Meanwhile, magnetic properties 2–11 studied which show typical antiferromagnetic interactions.

Язык: Английский

Platonic and Archimedean solids in discrete metal-containing clusters DOI
Xi‐Ming Luo, Ya‐Ke Li, Xi‐Yan Dong

и другие.

Chemical Society Reviews, Год журнала: 2022, Номер 52(1), С. 383 - 444

Опубликована: Дек. 19, 2022

This review presents the symmetrical beauty of metal cluster structures from perspective Platonic and Archimedean solids, further provides some insights into design synthesis unknown clusters.

Язык: Английский

Процитировано

81
Recent advances in the structural design and regulation of lanthanide clusters: Formation and self-assembly mechanisms DOI Open Access
Yun‐Lan Li, Hai‐Ling Wang, Zhong‐Hong Zhu

и другие.

Coordination Chemistry Reviews, Год журнала: 2023, Номер 493, С. 215322 - 215322

Опубликована: Июль 4, 2023

Язык: Английский

Процитировано

68
A Cubic Tinkertoy-like Heterometallic Cluster with a Record Magnetocaloric Effect DOI
Na Xu, Wanmin Chen, You‐Song Ding

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(14), С. 9506 - 9511

Опубликована: Апрель 1, 2024

Clusters showing a giant magnetocaloric effect (MCE) are of interest as molecular coolants for magnetic refrigeration. Herein, we report two heterometallic clusters, denoted Gd152Ni14@Cl24 and Sm152Ni8, just to highlight their inorganic core motifs, obtained by ligand-controlled co-hydrolysis Ni2+ Ln3+ (Ln = Gd, Sm) in the presence N-(2-hydroxyethyl)iminodiacetic acid (H2HEIDA). Both clusters display fascinating cubic Tinkertoy-like structures, with motifs being built multiple metallic shells Platonic Archimedean polyhedra. The isothermal entropy change─a direct measurement MCE─was determined be 52.65 J·kg–1·K–1 at 2.5 K 7.0 T Gd-containing cluster; this value is highest known any so far reported.

Язык: Английский

Процитировано

26
Recent advances in polyoxometalate-based lanthanide–oxo clusters DOI Creative Commons
Shurong Li, Weidong Liu, La‐Sheng Long

и другие.

Polyoxometalates, Год журнала: 2022, Номер 2(2), С. 9140022 - 9140022

Опубликована: Дек. 22, 2022

Polyoxometalate (POM)-based lanthanide-oxo clusters (LnOCs) are a class of polynuclear lanthanide–oxygen complexes formed by polyoxometalate stabilization through oxygen bridges in which POMs can be viewed as multidentate inorganic ligands. POM-based LnOCs have received interest owing to their interesting structures and potential applications. In this paper, we summarize the classification, synthesis strategies, properties LnOCs. classified into three main categories according metal core element type quantity: pure 4f clusters, 5d–4f 3d–4f clusters. Their synthetic strategies divided four based on source POM involved structural assembly: lacunary ligand-directed method, in-situ transformation generation mixed strategies. addition, single-molecule magnets proton conduction summarized.

Язык: Английский

Процитировано

40
All-inorganic POM cages and their assembly: A review DOI

Qian-sheng Lai,

Xin‐Xiong Li, Shou‐Tian Zheng

и другие.

Coordination Chemistry Reviews, Год журнала: 2023, Номер 482, С. 215077 - 215077

Опубликована: Фев. 28, 2023

Язык: Английский

Процитировано

37
High-Nuclearity Ln210Al140 Clusters: Neonates of Open Hollow Dodecahedral Cage Families DOI

Man-Ting Chen,

Qiaofei Xu,

Mukeremu Aibibula

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(32), С. 22134 - 22139

Опубликована: Июль 31, 2024

Open hollow dodecahedral cage clusters have long been a coveted target in synthetic chemistry, yet their creation poses immense challenges. Here we report two open lanthanide–aluminum (Ln–Al) heterometallic clusters, namely, [Ln210Al140(μ2-OH)210(μ3-OH)540(OAc)180(H2O)156](ClO4)120·(MeCN)x·(H2O)y, (Ln = Dy and x 27, y 300 for 1; Ln Y 28, 420 2). Remarkably, the 350 metal atoms 1 2 display Keplerate-type four-shell structure of truncated icosidodecahedron@dodecahedron@dodecahedron@icosidodecahedron. The diameter cationic cluster is approximately 5.0 nm, with an inner cavity about 2.8 nm window roughly 0.66 nm. boasts accessible void volume up to 15,000 Å3. Notably, these maintain stability water, icosidodecahedrons are first kind synthesized date. Given that Ln–Al has never reported before, this work represents member family cages.

Язык: Английский

Процитировано

13
Two Windmill-Shaped Ln18 Nanoclusters Exhibiting High Magnetocaloric Effect and Luminescence DOI
Qin Wang,

Ya-Ting Yu,

Ji‐Lei Wang

и другие.

Inorganic Chemistry, Год журнала: 2023, Номер 62(7), С. 3162 - 3169

Опубликована: Фев. 3, 2023

The self-assembly of the high-nuclearity Ln-exclusive nanoclusters is challenging but significance due to its aesthetically pleasing architectures and far-reaching latent applications in magnetic cooling technologies. Herein, two novel lanthanide were successfully synthesized under solvothermal conditions, formulated as {[Gd18(IN)20(HCOO)8(μ6-O)(μ3-OH)24(H2O)4]·4H2O}n {[Eu18(IN)16(HCOO)8(CH3COO)4(μ6-O)(μ3-OH)24(H2O)4]·5H2O}n (abbreviated Gd18 Eu18, HIN = isonicotinic acid). Both them possess exquisite windmill-shaped cationic cores family nanoclusters. Remarkably, adjacent second building units are interconnected into a three-dimensional (3D) metal–organic framework by IN– ligands. As expected, abundant existence GdIII ions endows with favorable entropy change at 2.0 K for ΔH 7.0 T (−ΔSmmax 40.0 J kg–1 K–1), Eu18 displays typical luminescence EuIII ions.

Язык: Английский

Процитировано

20
Synthesis and Emission Dynamics of Sub‐3 nm Upconversion Nanoparticles DOI Creative Commons
Baptiste Amouroux, Ali Eftekhari, Clément Roux

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер 12(24)

Опубликована: Июнь 26, 2024

Abstract Reducing the size of upconversion nanoparticles (UCNPs) down to a few nm yields luminescent materials containing very small number emitters. Considering bottom limit one activator per particle ultrasmall UCNPs offer an unprecedented platform study contributions different energy transfers at play in luminescence. Maintaining detectable emission despite limited emitting ions and high surface‐to‐volume ratio requires suitable architectures. Na(Gd‐Yb)F 4 :Tm 3+ emissive sub‐3 diameter β‐phase are prepared using gadolinium‐rich composition situ mixing precursors microwave high‐temperature cycling sequence allowing precise control dispersity. These cores coated with NaGdF inert shell minimize deleterious influence surface quenching (SQ). Time‐resolved luminescence measurements combining standard NIR excitation Yb sensitizer direct UV Tm performed quantify cross relaxation processes. The fine tuning activators via optimized synthesis pathway along use appropriate scheme enabled provide accurate analysis mechanisms these model characterize structure core‐shell architecture.

Язык: Английский

Процитировано

8
Application of Hard and Soft Acid‐base Theory to Construct Heterometallic Materials with Metal‐oxo Clusters DOI

Xiao Qi,

YuLong Xie, Jingyang Niu

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Окт. 24, 2024

Heterometallic cluster-based materials offer the potential to incorporate multiple functionalities, leveraging aggregation effects of clusters and translating this heterogeneity complexity into unexpected properties that are more than just sum their components. However, rational construction heterometallic remains challenging due metal cation coordination structural unpredictability. This minireview provides insights a general synthetic strategy based on Hard Soft Acids Bases (HSAB) theory, summarizing its advantages in designed synthesis discrete (intracluster assembly) infinite (intercluster assembly). Furthermore, it emphasizes exploit intrinsic mixed components achieve breakthroughs across broad range applications. The from review expected drive progress controllable predictable manner.

Язык: Английский

Процитировано

7
C2O42--Templated [Ln2Ni] Heterometallic Compounds for Enhanced Magnetocaloric Effect at Low-Field DOI
Qin Wang, Lei Xu, Ji‐Lei Wang

и другие.

Dalton Transactions, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Three new Ln2Ni (Ln = Gd, Sm, Tb) heterometallic compounds templated by C 2 O 4 2− anions were synthesized. The magnetic investigation showed that Gd2Ni displays an excellent low-field MCE (−Δ S m 25.1 J kg −1 K for 2.0 T at K).

Язык: Английский

Процитировано

1