Polyoxometalate-Based Metal–Organic Frameworks with Both Proton Acid and Multioxidative Active Sites: Highly Efficient Catalytic Synthesis of Quinazolinones DOI
Yanli Yang,

Ke-Ke Guo,

Yifei Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49400 - 49410

Published: Sept. 5, 2024

Quinazolinone derivatives are an important class of pharmaceutical and pesticide intermediates, which generally synthesized starting with the condensation reaction between aldehydes 2-aminobenzamide to obtain corresponding intermediates then oxidized products. Although some catalysts have been developed currently for synthesis quinazolinone derivatives, their catalytic efficiency is relatively low because only oxidative sites catalyst focused on. Herein, we three new polyoxometalate-based metal-organic frameworks, [Cu

Language: Английский

Polyoxometalates/metal–organic frameworks-derived ZnO/ZnWO4 nanoparticles for highly sensitive and selective ppb-level NO2 detection DOI
Jishun Li, Feng Li, Ying Yang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 156604 - 156604

Published: Oct. 10, 2024

Language: Английский

Citations

22
A {Ru(C6H6)}-Containing Isopolymolybdate with Good Photocatalytic Activity for Oxidative Coupling of Amines, and Proton Conduction Properties DOI
Wei Tang,

Weixia Shi,

Yuting Wang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(47), P. 22464 - 22471

Published: Nov. 11, 2024

We present a nonclassical {Ru(C

Citations

5
Polyoxovanadate-Based Metal–Organic Frameworks with Dual Active Sites for the Synthesis of p-Benzoquinones DOI
Haiyan An,

Yuting Wei,

Qingshan Zhu

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(24), P. 11113 - 11124

Published: June 5, 2024

p-Benzoquinones are important organic intermediates in the synthesis of biopharmaceuticals and fine chemicals. In this study, two crystalline 3D polyoxovanadate-based metal–organic frameworks, H[Cu(tpi)2]{Cu2V7O21}·H2O (1, tpi = C18N5H13) [Co(Htpi)2]{V4O12} (2, Htpi C18N5H14), were synthesized, which as heterogeneous catalysts showed excellent catalytic activities for p-benzoquinones. Both compounds characterized by IR, UV–vis diffuse reflectance spectroscopy, TG, XPS, X-ray diffraction, etc. 1, {Cu2V7} clusters connected together copper cations 1D Cu–organic coordination chains to yield a polyoxometalate-based framework (POMOF); 2, adjacent 2D bimetallic oxide layers, constructed from polyoxovanadate cobalt ions, further Co–organic form POMOF. Noteworthily, trimethyl-p-benzoquinone, key intermediate vitamin E, using 2,3,6-trimethylphenol model substrate, turnover frequency values 1 2 can, respectively, reach 607 380 h–1 8 min. Furthermore, both demonstrated recyclability structural stability, PXRD IR. The mechanism reveals that homolytic radical heterolytic oxygen atom transfer involved.

Language: Английский

Citations

4
Construction of Cobalt-Containing Polyoxovanadate-Based Inorganic–Organic Hybrids as Heterogeneous Catalysts for the Selective Oxidation of Sulfides DOI
Wei Zhang, Xiang Wang, Xinyu Zhao

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 30, 2024

In order to develop efficient catalysts for the selective oxidation of sulfides, in this work, two polyoxovanadate-based inorganic-organic hybrids, [Co(H

Language: Английский

Citations

3
Experimental and Theoretical Study of Two 3D Difunctional Electrocatalytic Hybrid Vanadate-Containing Metal–Organic Motifs DOI
Yanping Zheng, Xinxin Sun, Lin Li

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Two novel 3D inorganic-organic hybrids based on [V6O18]6-/[V3O9]3- clusters, [Cu18(bbpy)18(V6O18)6]·3H2O (1) and [Cu4Ag4(pty)4(V3O9)4]·H2O (2) (bbpy = 3,5-bis(1-benzimidazole) pyridine, pty 4'-(4″-pyridyl)-2,2':6',2″-terpyridine), were isolated in the same POV/Cu/N-heterocycle ligand reaction systems. Hybrids 1 2 possess three-dimensional bimetallic frameworks derived from clusters Cu-organic complexes. In 1, bbpy ligands are grafted by Cu2+ to a grid ribbon 2D sheet, which connected with benzene-like [V6O18]6- yield framework. 2, helical {O-V-O-V-}n chains bridged Cu(II) ions into layer including eight-membered rings {V6Cu2} six-membered {V4Cu2}, adjoining sheets joined Ag-N coordination bonds form framework structure. Moreover, hybrid has superior electrocatalytic properties for nitrite reduction oxidation of ascorbic acid efficiencies 397.2 96%, respectively. Hybrid displays coordinated performance toward through V Cu centers. Meanwhile, corresponding theoretical studies conducted evaluate active sites charge distribution.

Language: Английский

Citations

0
Additive-free oxidation of isochromans with molecular oxygen synergistically catalyzed by mixed-addendum polyoxometalate-based coordination polymers DOI

Zou-Guang Han,

Ling-Ling Dai,

Hongrui Tian

et al.

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Language: Английский

Citations

0
Polyoxometalate-supported Transition Metal Complexes for Oxidative Cross-Coupling of Amines and Alcohols DOI

Ankita Pardiwala,

Meghal A. Desai, Ritambhara Jangir

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Incorporation of transition metals between two octamolybdates/hexamolybdates results into useful catalysts, which effectively catalyse the oxidative cross-coupling anilines, benzyl alcohol, and sodium azide to produce benzimidazole.

Language: Английский

Citations

2
Ru Metalloligands Participate in the Construction of POM@MOF for Enhancing the Visible Photoinduced Baeyer–Villiger Oxidation Reaction DOI

Luoning Li,

Yanan Liu, Jing Wang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(52), P. 24506 - 24516

Published: Dec. 17, 2024

Directed synthesis of high-efficiency visible photoinduced Baeyer–Villiger oxidation catalysts is primary significance. Here, the isopolymolybdate anion [β-Mo8O26]4– for first time encapsulated with photosensitive metalloligand [Ru(bpy)2(H2dcbpy)]2+ (bpy = 2,2′-bipyridine; H2dcbpy 2,2′-bipyridine-5,5′-dicarboxylic acid) to synthesize polyoxometalate@metal–organic frameworks, {(CdDMF)2[Ru(bpy)2(dcbpy)]3([β-Mo8O26])}·5DMF (Ru–Mo8). The composite photocatalyst Ru–Mo8 not only has a light absorption 700 nm but also shortens photogenerated electron transfer distances and accelerates charge proton transfer. can perform high selectivity up 96.7% yield under (λ > 400 nm) irradiation. turnover number frequency reaction were computed be 967 548 h–1, respectively, apparent quantum was 6.84% by 425 nm. Simultaneously, radical mechanism in O2/benzaldehyde system irradiation proposed.

Language: Английский

Citations

2
Crystal structure of poly[octakis(μ-oxido)-tris(μ-1,1′-[[1,1′-biphenyl]-4,4′-diylbis(methylene)]bis(1H-imidazole))-tetrakis(oxido)-tetra-vanadium-dimanganese(II)dihydrate], C30H29MnN6O7V2 DOI Creative Commons

Ling-Ling Dai,

Xiaojie Wang,

Yucai Qin

et al.

Zeitschrift für Kristallographie - New Crystal Structures, Journal Year: 2024, Volume and Issue: 239(4), P. 689 - 691

Published: May 8, 2024

Abstract C 30 H 29 MnN 6 O 7 V 2 , triclinic, P 1 ‾ $\overline{1}$ (no. 2), a = 9.0806(3) Å, b 11.1937(3) c 16.3585(5) α 102.2430(10)°, β 100.090(1)°, γ 97.7410(10)°, 1574.09(8) Å 3 Z 2, R gt ( F ) 0.0335, wR ref 0.0886, T 100 K.

Language: Английский

Citations

0
Polyoxometalate-Based Metal–Organic Frameworks with Both Proton Acid and Multioxidative Active Sites: Highly Efficient Catalytic Synthesis of Quinazolinones DOI
Yanli Yang,

Ke-Ke Guo,

Yifei Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49400 - 49410

Published: Sept. 5, 2024

Quinazolinone derivatives are an important class of pharmaceutical and pesticide intermediates, which generally synthesized starting with the condensation reaction between aldehydes 2-aminobenzamide to obtain corresponding intermediates then oxidized products. Although some catalysts have been developed currently for synthesis quinazolinone derivatives, their catalytic efficiency is relatively low because only oxidative sites catalyst focused on. Herein, we three new polyoxometalate-based metal-organic frameworks, [Cu

Language: Английский

Citations

0