CHEMICAL SCIENCE

Tsinghua University hosted the second issue of the international journal Polyoxometalates in 2022


Polyoxometalates(ISSN 2957-9821) is the first international interdisciplinary academic journal in the field of polyoxometallic oxygen clusters sponsored by Tsinghua University, aiming to disseminate the latest progress in cutting-edge basic research and innovative applied research in the field of polyoxometallic oxygen clusters, and is committed to building a first-class international academic exchange platform for scholars in the field of polyoxometallic oxygen clusters at home and abroad, and promoting academic exchanges and development in the field of polyoxometallic oxygen clusters. Launched in 2022 with Professor Wei Yongge of Tsinghua University as the editor-in-chief, the second issue was officially published on the SciOpen platform of Tsinghua University Press in December 2022, and the full text is open access.

PolyoxometalatesThe publications cover original research in all aspects of the field of polyoxometallic oxygen clusters, including synthesis, assembly, theoretical calculations, supramolecules, molecular devices and other functional materials based on polyoxometallic oxygen clusters, and the application of polyoxometallic oxygen clusters in catalysis, energy, environment, biology and medicine. As the world’s first academic journal in the field of polyoxometallic oxygen clusters,PolyoxometalatesIt is committed to gathering authoritative consultants, excellent authors and professional editorial teams in related fields around the world, and strives to become one of the most influential international academic journals in the field of polymetallic oxygen clusters. In addition to original research articles, research letters, reviews, news, expert opinions, research highlights and reviews from related fields will also be published. Under the organization of the academic editorial team of Tsinghua University led by Professor Wei Yongge, the journal has an editorial team of 55 scholars with the highest international academic reputation and influence in the field of polyoxometallic oxygen clusters in the world, and 25 elite rising stars in the field of polyoxometallic oxygen clusters as young editorial board members.

The second journal published 3 review papers and 3 original research papers. All papers are open access, identify the QR code or click “Read Original” at the end of the article to download and read the article for free:

Review Articles

Recent advances in the asymmetrical templation effect of polyoxometalate in silver clusters

Jia-Yang Shi, Rakesh Kumar Gupta, Yong-Kai Deng, Di Sun, and Zhi Wang*

This review summarizes the state-of-the-art synthesis, design, properties, applications, and critical challenges of asymmetrically wrapped polyoxometalate (POM)–silver clusters.

Professor Sun Wei’s research group of Shandong UniversityThis paper summarizes the latest progress in the asymmetric template effect of polyacids in silver clusters, including their synthesis, structure and properties, analyzes and explains in detail the formation of such asymmetric clusters, as well as the reasons for their unique redox and electrocatalytic properties, and discusses the challenges in this field and the prospects for the future.

Polyoxometalates, 2022, 1, 9140010

https://doi.org/10.26599/POM.2022.9140010

Latest progress in covalently modified polyoxometalates-based molecular assemblies and advanced materials

Huaiying Zhang, Wan-Lei Zhao, Hongqiang Li, Qinghe Zhuang, Zeqian Sun, Dongyuan Cui, Xuejie Chen, Ao Guo, Xiang Ji, Sai An*, Wei Chen, and Yu-Fei Song*

This review summarized the latest progress (2017?2022) of covalently modified polyoxometalates (POMs) from functional perspective, which can be classified as assembly chemistry, photochemistry, electrochemistry, homogeneous/heterogeneous catalysis and biological application.

Professor Song Yufei’s research group at Beijing University of Chemical TechnologyThe research progress of covalently modified POMs in assembly chemistry, photochemistry, electrochemistry, homogeneous catalysis and heterogeneous catalysis and life science in the past five years (2017-2022) was summarized. The functional groups (such as photosensitive molecules, surfactants, biomolecules, etc.) were modified by covalent bonding to modify POMs, and their photoresponsiveness, redox, acidity, hydrophilicity and biocompatibility were regulated. Compared with non-covalently modified POMs, covalently modified POMs have higher stability, faster multi-electron transfer, better dispersion and accessibility, and better recyclability. In this paper, the authors conduct an in-depth analysis of POMs and the role of covalently modified species based on representative examples, and discuss in detail the rational design of covalently modified POMs for specific functional applications. Finally, the importance of designing and developing function-oriented covalent modified POMs was emphasized, and the future challenges and opportunities were prospected.

Polyoxometalates, 2022, 1, 9140011

https://doi.org/10.26599/POM.2022.9140011

Catalytic application of polyoxovanadates in the selective oxidation of organic molecules

Jie Li, Di Zhang, Yingnan Chi*, and Changwen Hu*

The review summarized the selective oxidation of organic molecules (e.g. alkanes, alkenes, alcohols, sulfur mustard simulants, sulfides and dyes) catalyzed by all-inorganic polyoxovanadates (POVs), organic-functionalized POVs and inorganic-organic hybrid POVs.

The research group of Professor Hu Changwen and Professor Chi Yingnan, Beijing Institute of TechnologyThe progress of POVs in catalyzing the oxidative transformation of small organic molecules in the past ten years was summarized. It mainly focuses on the selective catalytic oxidation of alkanes, alkenes, alcohols, sulfides, mustard gas mimics and organic dye molecules by inorganic POVs, organic functionalized POVs and inorganic-organic hybrid POVs. For most oxidation reactions, POVs produce active V-peroxo species in the presence of hydrogen peroxide or tert-butyl hydrogen peroxide, thereby enabling rapid conversion of organic substrate molecules. In addition, this paper discusses the opportunities and challenges faced in the development of this field, providing a reference for its sustainable development.

Polyoxometalates, 2022, 1, 9140012

https://doi.org/10.26599/POM.2022.9140012

Research Articles

Syntheses, crystal structures, and properties of four polyoxometalate-based

metal–organic frameworks based on Ag(I) and 4,4’-dipyridine-N,N’-dioxide

Haiyan Li, Hui Pan, Yanhua Fan, Yan Bai*, and Dongbin Dang*

Four new Ag(I) inorganic–organic hybrid coordination polymers (1–4) based on polyoxometalate (POM) and 4,4-bipyridine-N,N-dioxide have been synthesized. Polymers 1 and 4 exhibit a three-dimensional (3D) POM-pillared metal–organic framework and polymer 2 and 3 show a two-dimensional (2D) grid-like network.

Henan University cypressProfessor research groupFour cases of Ag(I)-nitrogen oxide 4,4-bipyridine modified polyacid-based metal-organic framework materials were synthesized by the introduction of Ag(I)-nitrogen oxide 4,4-bipyridine (dpdo) ligands using Keggin-type polyacid anions as building blocks, and they were applied as catalysts for electrochemical reduction of nitrite. 

Polyoxometalates, 2022, 1, 9140007

https://doi.org/10.26599/POM.2022.9140007

Old molybdenum blue for new application: {Mo72X30}/PANI/MWCNTs (X = Fe, V) ternary coaxial cable-like fibers for superior electromagnetic wave absorption

Peng He, Ling Ran, Rui Huang, Ruiting Hu, Runze Ma, Yani Li, Youcai Liang, and Jun Yan*

The rational design of molybdenum blue/polyaniline/multiwalled carbon nanotubes ({Mo72X30}/PANI/MWCNTs, X = Fe, V) ternary coaxial cable-like structure with rich heterointerfaces has explored the direction for excellent electromagnetic absorbing materials.

Professor Yan Jun’s research group of Central South University{Mo72X30}/PANI/MWCNTs (X = Fe, V) ternary coaxial cable-like fibers were designed and synthesized by a layer-by-layer self-assembly method, and they were used as electromagnetic wave absorbing materials for the first time. The heterogeneous interface between the layers of the material has the advantages of promoting dipole polarization, interface polarization and adjusting conduction loss. In addition, the addition of molybdenum blue improves the magnetic loss, mainly eddy current loss, and improves impedance matching. Based on this, ternary coaxial cable-like fibers exhibit excellent electromagnetic wave absorption properties. This study not only contributes to the understanding of the functional role of heterogeneous interfaces in electromagnetic wave absorbing materials, but also lays a foundation for the future research on molybdenum blue functional molecules in the field of electromagnetic wave absorption.

Polyoxometalates, 2022, 1, 9140008

https://doi.org/10.26599/POM.2022.9140008

Multistimuli-responsive circularly polarized luminescent material of achiral Eu-containing polyoxometalates and cellulose nanocrystals

Rong Wang, Peiyao Yu, Junyan Tan, Yue Zhou, and Jie Zhang*

We constructed stimuli-responsive circularly polarized luminescence (CPL) material based on cellulose nanocrystals (CNC), polyethylene glycol (PEG), and polyoxometalates Na9EuW10O36· 32H2O (EuW10). CNC photonic films act as a chiral template and induce the CPL of EuW10. With the increase in PEG content, the photonic bandgaps of composite films were redshifted. The dissymmetric factor glum became the maximum when PBG matched the fluorescence emission peak of EuW10. The CPL materials also demonstrated outstanding humidity responsiveness.

Research group of researcher Zhang Jie of Peking UniversityAn achiral tungsten europium polyacid (EuW10) strongly circularly polarized luminescent (CPL) hybrid material based on cellulose nanocrystal (CNC) chiral template was successfully constructed. High concentration cellulose nanocrystals can spontaneously form chiral nematic phase liquid crystals, selectively reflect left-handed circularly polarized light and transmit right-handed circularly polarized light, which is an ideal matrix for the preparation of circularly polarized luminescent materials. EuW10 and CNC can form intermolecular hydrogen bonding, electrostatic interaction, good compatibility, through simple blending can prepare uniform and stable films.

Polyoxometalates, 2022, 1, 9140009

https://doi.org/10.26599/POM.2022.9140009

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