Three Types of Lanthanide-Containing Polyoxoniobates and Their Luminescence Properties DOI
Zongfei Yang, Bing Yan, Xue Li

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(31), P. 12181 - 12189

Published: July 29, 2022

Fourteen lanthanide (Ln)-containing hetero selenato-phosphato-peroxopolyoxoniobates in three series: (1) Cs2{[Ln(H2O)4][H4P2Se2Nb6(O2)6O22]}2·nH2O [Ln = Ce (I-Ce), Pr (I-Pr), Sm (I-Sm), Eu (I-Eu), Gd (I-Gd); I-Ce, I-Pr, I-Eu, I-Gdn 12; I-Smn 16]; (2) Cs2K3{[Ln(H2O)6][H2.5P2Se2Nb6(O2)6O22]}2·nH2O Dy (II-Dy), Tm (II-Tm), Yb (II-Yb), Lu (II-Lu); II-Dyn 14; II-Tmn 24; II-Yb, II-Lun 13]; (3) Cs5K2Hm{[Ln(H2O)6][P2Se2Nb6(O2)6O22]}2{[Lnx(H2O)y]2[P2Se2Nb6(O2)6O22]}·nH2O Ho (III-Ho), Er (III-Er), (III-Tm), (III-Yb), (III-Lu), III-Ho-III-Ybm 5, x 1; y 5; III-Lum 6.5; 0.75; 4; III-Ho-III-Tmn 19, III-Ybn 34; III-Lun 31], have been isolated by a one-pot reaction and structurally characterized various physical chemical analyses. These compounds represent the first group of Ln-functionalized polyoxoniobates with mixed heteroatoms. In addition, photoluminescence properties I-Sm, II-Dy were measured, time-resolved emission spectra showed that {P2Se2Nb6} segment contributed to energy transfer from polyoxoniobate units Ln3+ center, which effectively promoted center.

Language: Английский

Enhanced local symmetry achieved zero-thermal-quenching luminescence characteristic in the Ca2InSbO6:Sm3+ phosphors for w-LEDs DOI
Xue Geng, Yan Xie, Shanshan Chen

et al.

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 410, P. 128396 - 128396

Published: Jan. 12, 2021

Language: Английский

Citations

154
Recent advances in lanthanide-based POMs for photoluminescent applications DOI

Kangting Zheng,

Pengtao Ma

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(9), P. 3949 - 3958

Published: Jan. 1, 2024

This frontier presents Ln-based POMs in photoluminescence applications, focusing mainly on multi-color emission, fluorescent probes, switch, drug activity, biomedical imaging, pH sensing and temperature sensing.

Language: Английский

Citations

38
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
Rigid-Flexible-Ligand-Ornamented Lanthanide-Incorporated Selenotungstates and Photoluminescence Properties DOI

Tiantian Gong,

Yanan Chen, Shuo Wang

et al.

Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 100370 - 100370

Published: June 1, 2024

Language: Английский

Citations

6
Slow Magnetic Relaxation and Luminescent Properties of Mononuclear Lanthanide-Substituted Keggin-Type Polyoxotungstates with Compartmental Organic Ligands DOI Creative Commons
Estibaliz Ruiz‐Bilbao, Markel Pardo‐Almanza, Itziar Oyarzabal

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(5), P. 2428 - 2443

Published: Jan. 27, 2022

The reaction of mid to late lanthanide ions with the N,N'-dimethyl-N,N'-bis(2-hydroxy-3-formyl-5-bromobenzyl)ethylene-diamine organic ligand and monolacunary Keggin type [α-SiW11O39]8- anion affords a series isostructural compounds, namely, K5[LnIII(α-SiW11O39)(C20H22Br2N2O4)]·14H2O (1-Ln, Ln = Sm Lu). molecular structure these sandwich-type complexes is formed by LnIII ion in biaugmented trigonal prismatic geometry, which occupies external O4 site vacant lacunary polyoxometalate (POM) unit. empty N2O2 coordination allows its unprecedented folding, displays relative perpendicular arrangement aromatic groups. Weak Br···Br π-π interactions established between adjacent units govern crystal packing, results formation assemblies containing six hybrid species assembled chairlike conformation. 1-Gd 1-Yb display slow relaxation magnetization after application an magnetic field maxima out-of-phase susceptibility plots below ∼5-6 K, ascribed presence various mechanisms. Moreover, photoluminescent emission sensitized for 1-Sm 1-Eu visible region 1-Er NIR. In contrast, quenching metal-centered luminescence 1-Tb derivative has been attributed out-of-pocket mode center within POM fragment. It demonstrated that dual magneto-luminescent material represents first lanthanide-containing reported date simultaneous NIR emission. Solution stability water also confirmed ESI-mass spectrometry experiments carried out 1-Tm.

Language: Английский

Citations

23
Two Tetra-Nuclear Ln-Substituted Prazine Dicarboxylic Acid-Functionalized Selenotungstates with Catalytic Oxidation of Thioether Properties DOI

Bingxue Niu,

Miao Zhang,

Luting Yan

et al.

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(49), P. 20153 - 20161

Published: Nov. 23, 2023

Two two-dimensional Ln-substituted prazine dicarboxylic acid-functionalized selenotungstates Na3H9[(H2N(CH3)2]2{(Se4W27O100)[Ln4(H2O)8(Hpzdc)2(pzdc)]}·26H2O [Ln = Nd (1) and Ce (2)]; H2pzdc 2,3-pyrazine acid) have been synthesized by one-pot self-assembly strategy, in which the basic polyanion [Se4W27O100]22-was composed of two [SeW8O31]10- fragments, a [SeW9O33]8- segment an intriguing {SeO} group, simultaneously tetra-nuclear Ln3+ ions with pendants were embedded. Compounds 1 2 showed excellent catalytic oxidation thioether properties within short time (20 min) high 100% conversion 98.9% selectivity. In addition, pioneering used as catalysts to degrade sulfur mustard simulant 2-chloroethyl ethyl sulfide at room temperature 99% The chemical kinetic experiment studies revealed that reaction was compliance first-order reaction, half-life (t1/2) values 3.814 3.849 min, respectively.

Language: Английский

Citations

13
Binuclear Ru(III)-Containing Polyoxometalate with Efficient Photocatalytic Activity for Oxidative Coupling of Amines to Imines DOI
Wenjing Chen, Huafeng Li,

Junpeng Song

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(4), P. 2076 - 2085

Published: Jan. 13, 2022

A novel binuclear ruthenium-based polyoxometalate, K6H[{Ru2Cl(H2O)(CH3COO)2}{WO(H2O)}2(PW9O34)2]·14H2O (1), was successfully synthesized by the conventional hydrothermal method. Compound 1 well-characterized single-crystal X-ray diffraction, powder diffraction (PXRD), infrared (IR) spectroscopy, photoelectron spectroscopy (XPS), electrospray ionization-mass spectrometry (ESI-MS), thermogravimetric analyses (TGA), and elemental analysis. The structural unit of compound contains two [A-α-PW9O34]9- building blocks at upper lower positions connected W atoms Ru atoms, where are arranged in a trapezoidal arrangement bridged acetic acid. Furthermore, features characteristic absorption bands visible region, which allows investigation its photocatalytic properties light. Under simulated sunlight radiation (λ > 400 nm), exhibits high activity good circularity toward oxidative coupling amines to imines room temperature with O2 as sole oxidant.

Language: Английский

Citations

22
A Lacunary Polyoxovanadate Precursor and Transition‐Metal‐Sandwiched Derivatives for Catalytic Oxidation of Sulfides DOI
Rong Wan, Peipei He, Zhen Liu

et al.

Chemistry - A European Journal, Journal Year: 2020, Volume and Issue: 26(40), P. 8760 - 8766

Published: Jan. 27, 2020

A SeO3 -centered lacunary Keggin-type heteropolyoxovanadate (hetero-POV) K6 H2 [SeV10 O28 (SeO3 )3 ]⋅14 O (1) was isolated by one-pot reaction of KVO3 and SeO2 under acidic conditions. X-ray studies revealed that it comprised a single {VO5 }-capped trivacant B-α-type Keggin ion [SeV9 O33 (VO)]14- with its sites decorated three {SeO3 } pyramids. Interestingly, this new basic hetero-POV building block further used as precursor to assemble different transition-metal (TM) ions, yielding series TM-sandwiched POVs H8 [(SeV10 )2 (M(H2 O)4 )]⋅24 (M2+ =Mn2+ (2), Co2+ (3), Zn2+ (4)). All four compounds were characterized single-crystal structure analysis, IR, photoelectron spectroscopy (XPS), EPR, 51 V NMR spectroscopy. Importantly, derivatives exhibited effective catalytic activity for the heterogeneous oxidative desulfurization sulfides at room temperature.

Language: Английский

Citations

28
Regulating the catalytic activity of multi-Ru-bridged polyoxometalates based on differential active site environments with six-coordinate geometry and five-coordinate geometry transitions DOI
Huafeng Li, Wenjing Chen, Yujie Zhao

et al.

Nanoscale, Journal Year: 2021, Volume and Issue: 13(17), P. 8077 - 8086

Published: Jan. 1, 2021

Robust multi-Ru-bridged POMs have demonstrated strong capabilities in achieving oxidation catalysis. Further investigations indicate that the catalytic efficiency could be further optimized by tuning geometry of sites.

Language: Английский

Citations

25
Recent advances in rare earth co-doped luminescent tungsten oxygen complexes DOI
Bing Yan, Hechen Wu, Pengtao Ma

et al.

Inorganic Chemistry Frontiers, Journal Year: 2021, Volume and Issue: 8(18), P. 4158 - 4176

Published: Jan. 1, 2021

This review talks about recent advances in RE co-doped tungsten oxygen complexes, including synthesis strategies associated with the luminescent mechanism, structural features and related applications.

Language: Английский

Citations

24