Uranyl-Polyoxometalate as a Heterogeneous Catalyst for Visible-Light-Driven Oxidation Coupling of Amines DOI

Xiaoyue Wang,

Mengyuan Cheng,

Yanan Liu

et al.

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

Published: June 3, 2025

Developing efficient heterogeneous visible-light-responsive photocatalysts to achieve organic oxidation reactions is essential. We synthesized the uranyl-polyoxometalate (POM) compound Na3[H19(UO2)2(μ2-O)(Se2W14O52)2]·41H2O (denoted as U2) by incorporating uranyl (VI) ions (UO22+) into POM framework and conducted photocatalytic reaction of uranyl-POM compounds. Results revealed that introduction groups not only extended light absorption range U2 500 nm but also promoted its carrier separation efficiency charge transfer rate remarkably. Meanwhile, synergistic effect among components enhanced catalytic activity notably. The U2-catalyzed oxidative coupling benzylamine was completed within 6 h under a green solvent-free system with high yield 98.7%. turnover number frequency reached 1974 329 h-1, respectively, far exceeding or used alone. Furthermore, demonstrated exhibit excellent recyclability, maintaining over five consecutive cycles without significant degradation. Incorporating POMs form achieves performance in N-benzylidenebenzylamine conditions (yield = 98.7%; 1974; h-1).

Language: Английский

[Ru(bpy)3]2+ Derivatives-Incorporated POM@MOFs with Good Photocatalytic Activity for Visible-Light-Driven Oxidative Coupling of Amines to Imines DOI
Zhen Jing,

Sen Liu,

Xiaodong Zhang

et al.

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

Published: April 8, 2025

Two novel POM@MOFs, {H3Zn2.5(H2O)10[Ru(dcbpy)3][PMo11VIMoVO40]}·2H2O (RuZn-PMo) and {H3Ni2.5(H2O)12[Ru(dcbpy)3][PMo11VIMoVO40]}·5H2O (RuNi-PMo), have been synthesized through a traditional hydrothermal method. They are composed of [Ru(bpy)3]2+-derived hexa-carboxylate Keggin-type anion [PMo11VIMoVO40]4-. In addition, their structures were well characterized by various spectroscopic methods. Under the irradiation visible light (λ > 400 nm), RuZn-PMo RuNi-PMo as heterogeneous photocatalysts showed efficient photocatalytic performance in coupling reaction amines, with TONs 451 454, respectively. Moreover, exhibited excellent reusability stability after three continuous cycles. Besides, EPR measurements performed to elucidate mechanism.

Language: Английский

Citations

0
Heteropoly Blue Modified SnO2 for Highly Efficient Perovskite-Based Photodetectors DOI
Xueying Xu, Ziting Liu,

Weilin Chen

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Language: Английский

Citations

0
Group IIIA Metal-Capped {M2(H2O)[P4Mo6O31]2}-Based Phosphomolybdates (M = Al3+, Ga3+) DOI
Yuqing Liu,

Hao‐Xue Bi,

Ziyi Zhang

et al.

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

Published: May 25, 2025

Group IIIA metal Al3+/Ga3+-capped {M2(H2O)[P4Mo6O31]2}-based phosphomolybdates were synthesized by adjusting the reducing agents, in which two [P4MoVI4MoV2O31]8- half-units are joined a face-to-face mode and capped M3+/[M(H2O)]3+ cations on both sides. This type of {M2(H2O)[P4Mo6O31]2} hybrids showed excellent photocatalytic activities Cr(VI) reduction reaction.

Language: Английский

Citations

0
Uranyl-Polyoxometalate as a Heterogeneous Catalyst for Visible-Light-Driven Oxidation Coupling of Amines DOI

Xiaoyue Wang,

Mengyuan Cheng,

Yanan Liu

et al.

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

Published: June 3, 2025

Developing efficient heterogeneous visible-light-responsive photocatalysts to achieve organic oxidation reactions is essential. We synthesized the uranyl-polyoxometalate (POM) compound Na3[H19(UO2)2(μ2-O)(Se2W14O52)2]·41H2O (denoted as U2) by incorporating uranyl (VI) ions (UO22+) into POM framework and conducted photocatalytic reaction of uranyl-POM compounds. Results revealed that introduction groups not only extended light absorption range U2 500 nm but also promoted its carrier separation efficiency charge transfer rate remarkably. Meanwhile, synergistic effect among components enhanced catalytic activity notably. The U2-catalyzed oxidative coupling benzylamine was completed within 6 h under a green solvent-free system with high yield 98.7%. turnover number frequency reached 1974 329 h-1, respectively, far exceeding or used alone. Furthermore, demonstrated exhibit excellent recyclability, maintaining over five consecutive cycles without significant degradation. Incorporating POMs form achieves performance in N-benzylidenebenzylamine conditions (yield = 98.7%; 1974; h-1).

Language: Английский

Citations

0