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学者姓名：孙燕琼
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Abstract ：
The novel Sc-containing polyoxoniobate, H16.5K9Na16.5[Sc3(Nb7O22)(Nb14O42)3]115.5H2O, has been successfully synthesized. It exhibits a unique heptameric structure and demonstrates catalytic activity towards the Knoevenagel condensation reaction, along with broad substrate compatibility.
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| GB/T 7714 | Lin, Ya-Ting , Zeng, Li , Li, Yi-Ying et al. A scandium-containing polyoxoniobate heptamer as a catalyst for the Knoevenagel condensation reaction [J]. | DALTON TRANSACTIONS , 2025 , 54 (21) : 8425-8429 . |
| MLA | Lin, Ya-Ting et al. "A scandium-containing polyoxoniobate heptamer as a catalyst for the Knoevenagel condensation reaction" . | DALTON TRANSACTIONS 54 . 21 (2025) : 8425-8429 . |
| APA | Lin, Ya-Ting , Zeng, Li , Li, Yi-Ying , Sun, Yan-Qiong , Li, Xin-Xiong , Zheng, Shou-Tian . A scandium-containing polyoxoniobate heptamer as a catalyst for the Knoevenagel condensation reaction . | DALTON TRANSACTIONS , 2025 , 54 (21) , 8425-8429 . |
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Three novel inorganic-organic hybrid polyoxoniobates (PONbs), H27K2Na6(H2O)17[K(H2O)(Nb6O19)2(Nb6O20) (RA)2]center dot 13H2O (1, H5RA = C7H11NO7P2, risedronic acid), H21(CN3H6)12[K3(H2O)(Nb6O19)2(Nb6O20)(ZA)2]center dot 5H2O (2, H5ZA = C5H10N2O7P2, zoledronic acid, CN3H6 = guanidine) and H24(CN3H6)7K2(H2O)4[K3(H2O)2(Nb6O19)2(Nb6O20)(EA)2]center dot 8H2O (3, H5EA = C2H8O7P2, etidronic acid, CN3H6 = guanidine) were successfully synthesized. The polyoxoanion clusters are in a small boat shape and consist of {(Nb6O19)2(Nb6O20)} unit and two deprotonated RA5-, ZA5-, and EA5- ligands, respectively. Furthermore, PONb 1 can be used as an effective heterogeneous catalyst for the Knoevenagel condensation reaction with high yields and good substrate compatibility under optimal conditions. In addition, PONb 1 also has good catalytic activity in gram-scale reactions.
Keyword ：
Knoevenagel condensation reaction Knoevenagel condensation reaction Organophosphonate Organophosphonate Polyoxoniobate Polyoxoniobate
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| GB/T 7714 | Zhang, Xue-Yu , Li, Yan-Ru , Hong, Li-Hao et al. Bisphosphonate-modified boat-shaped polyoxoniobates for efficient catalysis of knoevenagel condensation [J]. | JOURNAL OF SOLID STATE CHEMISTRY , 2025 , 347 . |
| MLA | Zhang, Xue-Yu et al. "Bisphosphonate-modified boat-shaped polyoxoniobates for efficient catalysis of knoevenagel condensation" . | JOURNAL OF SOLID STATE CHEMISTRY 347 (2025) . |
| APA | Zhang, Xue-Yu , Li, Yan-Ru , Hong, Li-Hao , Wu, Ping-Xin , Cong, Yu-Chen , Mi, Ying-Hao et al. Bisphosphonate-modified boat-shaped polyoxoniobates for efficient catalysis of knoevenagel condensation . | JOURNAL OF SOLID STATE CHEMISTRY , 2025 , 347 . |
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In the past, the synthesis of polyoxometalate (POM)-templated silver nanoclusters typically relied on the use of organic salts of POMs as starting templates, thereby limiting the solvent selectivity in the synthesis. The utilization of pure-inorganic POMs as starting templates in developing novel POM-templated silver nanoclusters has been neglected. Herein, we have used pure-inorganic polyoxoniobates as a starting template to synthesize a new silver nanocluster H4[Nb6O19@Ag40(iPrS)28S4] (Ag40) (iPrS = isopropylthiolate). Single-crystal X-ray diffraction analysis showed that the silver nanocluster exhibits a remarkable core-shell structure featuring a Lindqvist-type [Nb6O19]8- polyanion as a template, surrounded by 40-nucleated silver ions as the metal shell and capped by iPrS- ligands. Interestingly, the silver nanocluster exhibits significant fluorescence properties at low temperatures, demonstrating temperature-dependent fluorescence, making it a potential candidate for temperature sensing. This work provides a new strategy for new POM-templated silver nanoclusters by using pure-inorganic POMs as starting templates. It also offers new insights into the anionic template method for synthesizing silver nanoclusters.
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| GB/T 7714 | Zeng, Li , Lin, Ya-Ting , Hong, Li-Hao et al. A new silver-thiolate nanocluster synthesized utilizing pure-inorganic polyoxoniobate as a starting template and its variable-temperature fluorescence properties [J]. | CRYSTENGCOMM , 2025 , 27 (18) : 2883-2887 . |
| MLA | Zeng, Li et al. "A new silver-thiolate nanocluster synthesized utilizing pure-inorganic polyoxoniobate as a starting template and its variable-temperature fluorescence properties" . | CRYSTENGCOMM 27 . 18 (2025) : 2883-2887 . |
| APA | Zeng, Li , Lin, Ya-Ting , Hong, Li-Hao , Sun, Yan-Qiong , Xie, Jianping , Zheng, Shou-Tian et al. A new silver-thiolate nanocluster synthesized utilizing pure-inorganic polyoxoniobate as a starting template and its variable-temperature fluorescence properties . | CRYSTENGCOMM , 2025 , 27 (18) , 2883-2887 . |
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Ln-containing polyoxoniobates (PONbs) have appealing applications in luminescence, information encryption and magnetic fields, but the synthesis of PONbs containing high-nuclearity Ln-O clusters is challenging due to the easy hydrolysis of Ln3 + ions in alkaline environments. In this paper, we are able to integrate CO3 2- and high-nuclearity Ln-O clusters into PONb to construct an inorganic giant Eu19 -embedded PONb H49 K16 Na13 (H2 O)63 [Eu21 O2 (OH)7 (H2 O)5 (Nb7 O22 )10 (Nb2 O6 )2 (CO3 )18 ] 91H2 O ( 1 ), which contains the highest nuclearity Eu-O clusters and the largest number of Eu3 + ions among PONbs. In addition, the film that was prepared by mixing 1 with gelatin and glycerol, exhibits reversible luminescence switching behavior under acid/alkali stimulation and has been used to create a fluorescence-encoded information approach. This work paves a feasible strategy for the construction of high-nuclearity Ln-O cluster-containing PONbs and the expansion of the application of Ln-containing PONbs in information encryption. (c) 2024 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
Keyword ：
Acid/alkali stimulation Acid/alkali stimulation Information encryption Information encryption Lanthanide Lanthanide Luminescence Luminescence Polyoxoniobate Polyoxoniobate
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| GB/T 7714 | Xia, Wen-Jun , Wang, Yong-Jiang , Cao, Yun-Fei et al. A luminescent folded S-shaped high-nuclearity Eu19 -oxo-cluster emb e dde d polyoxoniobate for information encryption [J]. | CHINESE CHEMICAL LETTERS , 2025 , 36 (2) . |
| MLA | Xia, Wen-Jun et al. "A luminescent folded S-shaped high-nuclearity Eu19 -oxo-cluster emb e dde d polyoxoniobate for information encryption" . | CHINESE CHEMICAL LETTERS 36 . 2 (2025) . |
| APA | Xia, Wen-Jun , Wang, Yong-Jiang , Cao, Yun-Fei , Sun, Cai , Li, Xin-Xiong , Sun, Yan-Qiong et al. A luminescent folded S-shaped high-nuclearity Eu19 -oxo-cluster emb e dde d polyoxoniobate for information encryption . | CHINESE CHEMICAL LETTERS , 2025 , 36 (2) . |
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Atomically precise low-nuclearity (n<10) silver nanoclusters (AgNCs) have garnered significant interest due to their size-dependent optical properties and diverse applications. However, their synthesis has remained challenging, primarily due to their inherent instability. The present study introduces a new feasible approach for clustering silver ions utilizing highly negative and redox-inert polyoxoniobates (PONbs) as all-inorganic ligands. This strategy not only enables the creation of novel Ag-PONb composite nanoclusters but also facilitates the synthesis of stable low-nuclearity AgNCs. Using this method, we have successfully synthesized a small octanuclear rhombic [Ag-8](6+) AgNC stabilized by six highly negative [LiNb27O75](14-) polyoxoanions. This marks the first PONb-protected superatomic AgNC, designated as {Ag-8@(LiNb27O75)(6)} (Ag-8@Nb-162), with an aesthetically spherical core-shell structure. The crystalline Ag-8@Nb-162 is stable under ambient conditions, What's more, it is water-soluble and able to maintain its molecular cluster structure intact in water. Further, the stable small [Ag-8](6+) AgNC has interesting temperature- and pH-dependent reversible fluorescence response, based on which a multiple optical encryption mode for anti-counterfeit technology was demonstrated. This work offers a promising avenue for the synthesis of fascinating and stable PONb-protected AgNCs and sheds light on the development of new-type optical functional materials.
Keyword ：
fluorescence fluorescence macromolecules macromolecules nanoclusters nanoclusters polyoxoniobate polyoxoniobate silver silver
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| GB/T 7714 | Hong, Li-Hao , Yue, Sheng-Nan , Huang, Xing et al. Development of Stable Water-Soluble Supratomic Silver Clusters Utilizing A Polyoxoniobate-Protected Strategy: Giant Core-Shell-Type Ag8@Nb162 Fluorescent Nanocluster [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (29) . |
| MLA | Hong, Li-Hao et al. "Development of Stable Water-Soluble Supratomic Silver Clusters Utilizing A Polyoxoniobate-Protected Strategy: Giant Core-Shell-Type Ag8@Nb162 Fluorescent Nanocluster" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 29 (2024) . |
| APA | Hong, Li-Hao , Yue, Sheng-Nan , Huang, Xing , Sun, Cai , Cai, Ping-Wei , Sun, Yan-Qiong et al. Development of Stable Water-Soluble Supratomic Silver Clusters Utilizing A Polyoxoniobate-Protected Strategy: Giant Core-Shell-Type Ag8@Nb162 Fluorescent Nanocluster . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (29) . |
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A new inorganic-organic hybrid polyoxoboroniobate {H4K2[Cu(cis-en)(2)(H2O)](9)[Cu(cis-en)(2)](6)[Cd-2(cis-en)(2)(trans-en)][LiB2Nb29O86](2)79H(2)O} (1, en = ethylenediamine), is built from pagoda-shaped {LiB2Nb29O86} clusters, linear {Cd-2(cis-en)(2)(trans-en)} bridging units, and copper-amine complexes. The {LiB2Nb29O86} cluster represents the first example of combining oxoboron clusters with polyoxoniobate clusters (PONbs). It consists of an unusual HPONb fragment {LiNb18O54}, a fused-ring structural boroniobate cluster {B2Nb5O13}, and a classical Lindqvist {Nb6O19} fragment. The {Cd-2(cis-en)(2)(trans-en)} and [Cu(cis-en)(2)](2+) complexes link the pagoda-shaped {LiB2Nb29O86} clusters into 1D infinite ladder chains. This is the first instance of simultaneous coordination of the cis-en and trans-en ligands with a single metal cation in the inorganic-organic hybrid PONb family. Furthermore, 1 exhibits good proton conductivity.
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| GB/T 7714 | Yu, Hao , Lin, Yu-Diao , Sun, Yan-Qiong et al. A Rare Inorganic-Organic Hybrid Polyoxoboroniobate Based on Pagoda-Shaped {LiB2Nb29O86} Clusters and {Cd2(cis-en)2(trans-en)} Complexes [J]. | INORGANIC CHEMISTRY , 2024 , 63 (38) : 17351-17356 . |
| MLA | Yu, Hao et al. "A Rare Inorganic-Organic Hybrid Polyoxoboroniobate Based on Pagoda-Shaped {LiB2Nb29O86} Clusters and {Cd2(cis-en)2(trans-en)} Complexes" . | INORGANIC CHEMISTRY 63 . 38 (2024) : 17351-17356 . |
| APA | Yu, Hao , Lin, Yu-Diao , Sun, Yan-Qiong , Zheng, Shou-Tian . A Rare Inorganic-Organic Hybrid Polyoxoboroniobate Based on Pagoda-Shaped {LiB2Nb29O86} Clusters and {Cd2(cis-en)2(trans-en)} Complexes . | INORGANIC CHEMISTRY , 2024 , 63 (38) , 17351-17356 . |
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Nature seems to favor the formation of closed anion-templated silver clusters. How precisely to create non-closed sliver clusters remains an interesting challenge. In this work, we propose that the use of transition-metal-coordination-cluster substituted polyoxometalates (TMCC-substituted POMs) as templates is an effective synthetic strategy for creating the non-closed silver clusters, as demonstrated by the obtainment of four types of rare non-closed silver cluster species of Ag38-TM (TM = Co, Ni or Zn), Ag37-Zn, {Ag37-Zn}infinity and Ag36-TM (TM = Co, Ni). The idea of the strategy is to employ the TMCC-substituted POMs containing cluster modules with different bond interactions with Ag+ ions as templates to guide the formation of the non-closed silver clusters. For example, TMCC-substituted POM clusters are used as templates in this work, which contain POM modules that can coordinate with the Ag+ ions and TMCC moieties that are difficult to coordinate with the Ag+ ions, leading to the Ag+ ions being unable to form closed clusters around TMCC-substituted POM templates. The work demonstrates a promising approach to developing intriguing and unexplored non-closed silver clusters. Using transition-metal-coordination-cluster-substituted polyoxometalates as templates, four kinds of rare non-closed silver cluster species are obtained, demonstrating a promising strategy for the development of uncommon non-closed silver clusters.
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| GB/T 7714 | Rui, Ge , Cai, Ping-Wei , Cai, Sun et al. Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates [J]. | CHEMICAL SCIENCE , 2024 , 15 (31) : 12543-12549 . |
| MLA | Rui, Ge et al. "Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates" . | CHEMICAL SCIENCE 15 . 31 (2024) : 12543-12549 . |
| APA | Rui, Ge , Cai, Ping-Wei , Cai, Sun , Sun, Yan-Qiong , Li, Xin-Xiong , Zheng, Shou-Tian . Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates . | CHEMICAL SCIENCE , 2024 , 15 (31) , 12543-12549 . |
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Herein, cobalt is incorporated into a polyoxotungstate (POW) to obtain a new organic-inorganic hybrid Co-containing POW with a reliable 1D nanowire structure. The Co-containing POW exhibits superior oxygen evolution reaction (OER) activity in a neutral medium compared with its isomorphic Zn-containing POW, highlighting the critical role of cobalt in enhancing OER performance. This work provides a new insight into the structure-property relationship of metal oxides in electrocatalysis. Herein, cobalt is incorporated into a polyoxotungstate (POW) to obtain a new organic-inorganic hybrid Co-containing POW with a reliable 1D nanowire structure.
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| GB/T 7714 | Chen, Zhe-Hong , Zhang, Xiao-Yue , Li, Da-Huan et al. Organic-inorganic hybrid Co-containing polyoxotungstate as an oxygen evolution catalyst [J]. | CRYSTENGCOMM , 2024 , 26 (41) : 5840-5844 . |
| MLA | Chen, Zhe-Hong et al. "Organic-inorganic hybrid Co-containing polyoxotungstate as an oxygen evolution catalyst" . | CRYSTENGCOMM 26 . 41 (2024) : 5840-5844 . |
| APA | Chen, Zhe-Hong , Zhang, Xiao-Yue , Li, Da-Huan , Li, Xin-Xiong , Sun, Yan-Qiong , Sun, Cai et al. Organic-inorganic hybrid Co-containing polyoxotungstate as an oxygen evolution catalyst . | CRYSTENGCOMM , 2024 , 26 (41) , 5840-5844 . |
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Two inorganic-organic hybrid polyoxotantalates, H-4[Na(H2O)(5)](2)[Co-II(en)(3)](2){[Co-III(en)](2)(Ta6O19)(2)}center dot 22H(2)O (1) and H2K2Na6 (H2O)(24){[Co-III(en)](2)(Ta6O19)(2)}33H(2)O (2) have been constructed from {[Co-III(en)(Ta6O19)](2)}(10-) ({Co2Ta12}) dimers. Compound 1 has a three-dimensional supramolecular framework with a pcu-type topology. Compound 2 possesses a three-dimensional structure composed of {Co2Ta12} dimers and alkali metal ions (Na+/K+) via coordination bonds. Polyoxotantalates 1 and 2 have been used as active materials for ITO/1/Ag and ITO/2/Ag RRAM devices. These devices exhibit stable non-volatile storage behavior and rewritable resistive switching with high ON/OFF ratios of 1.43 x 10(3) and 2.17 x 10(4) for 1-based and 2-based RRAM devices, respectively, and stable cyclic performance during 100-cycle stability tests. This discovery opens up new opportunities for the development of electrical bistability materials.
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| GB/T 7714 | Cao, Yun-Fei , Lin, Yu-Jin , Li, Xin-Xiong et al. Two resistance-switchable hybrid polyoxotantalates based on {Co2Ta12} clusters [J]. | CRYSTENGCOMM , 2024 , 26 (26) : 3527-3534 . |
| MLA | Cao, Yun-Fei et al. "Two resistance-switchable hybrid polyoxotantalates based on {Co2Ta12} clusters" . | CRYSTENGCOMM 26 . 26 (2024) : 3527-3534 . |
| APA | Cao, Yun-Fei , Lin, Yu-Jin , Li, Xin-Xiong , Sun, Yan-Qiong , Zheng, Shou-Tian . Two resistance-switchable hybrid polyoxotantalates based on {Co2Ta12} clusters . | CRYSTENGCOMM , 2024 , 26 (26) , 3527-3534 . |
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A rare all-inorganic high-nuclearity mixed-valent {Mn-11} cluster embedded polyoxoniobate, K25H43{(Te4Nb9O33)(3)(Nb6O19)(5)((TeNb5O14)-Nb-VI)[((TeO3)-O-IV)(2)((Mn7Mn4O19)-Mn-II-O-III)]}97H(2)O (1), has been synthesized by a one-pot reaction. Compound 1 contains the largest manganese cluster {Mn-11} core among polyoxoniobates reported to date. {Mn-11} consists of three quasi-cubane {Mn3O4} units and is simultaneously encapsulated by lacunary alpha-Keggin {Te4Nb9O36} and Lindqvist {Nb6O19} units. Compound 1 exhibits significant magnetic anisotropy and excellent water solubility and stability. The findings suggest a new, all-inorganic polynulear Mn-based structural paradigm for aqueous solution chemistry and magnetic materials.
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| GB/T 7714 | Wu, Ping-Xin , Chen, Chun-Xia , Sun, Yan-Qiong et al. A water-soluble mixed-valent {Mn11} cluster embedded heteropolyoxoniobate with magnetic properties [J]. | CHEMICAL COMMUNICATIONS , 2024 , 60 (67) : 8888-8891 . |
| MLA | Wu, Ping-Xin et al. "A water-soluble mixed-valent {Mn11} cluster embedded heteropolyoxoniobate with magnetic properties" . | CHEMICAL COMMUNICATIONS 60 . 67 (2024) : 8888-8891 . |
| APA | Wu, Ping-Xin , Chen, Chun-Xia , Sun, Yan-Qiong , Zheng, Shou-Tian . A water-soluble mixed-valent {Mn11} cluster embedded heteropolyoxoniobate with magnetic properties . | CHEMICAL COMMUNICATIONS , 2024 , 60 (67) , 8888-8891 . |
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