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学者姓名：陈义平
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Abstract ：
Two Polyoxometalates have been constructed by simple hydrothermal synthesis using rare-earth (RE) and antimonotungstates (ATs) {B-α-SbW9O33} as raw materials with the molecular formulas of H4.5Na1.5(H2O)6(C3H5N2)3{Na(Sb3O)2[B-β-SbW8O31Dy(H2O)2]3}·12H2O (1) and H9(C3H5N2)5{[Sb6IIISbVDy2WO10(H2O)5][(B-β-SbW9O33)2(B-α-SbW9O33)]}·16H2O (2). X-ray Single crystal diffractometer analysis shows that both 1 and 2 possess trimer configurations. Polyoxoanion 1 is assembled from three trilacunary {B-β-SbW8O31Dy(H2O)2}p units linked via {Na(Sb3O)2} cluster, where the trilacunary {B-β-SbW8O31Dy(H2O)2} unit is formed by the tetralacunary {B-β-SbW8O31} unit captures one Dy(H2O)23+ cation. Polyoxoanion 2 is composed of a novel 5p−4f heterometallic cluster {Sb6IIISbVDy2WO12(H2O)5} simultaneously stabilized by two {B-β-SbW9O33} units and one {B-α-SbW9O33} unit. In addition, two-dimensional correlation infrared spectroscopy (2D COS-IR) under magnetic disturbance was measured to investigate the difference of the variable temperature magnetic susceptibility between two compounds to explore the source of magnetic properties, and further magnetic property tests indicate that 1 and 2 may exhibit single-molecule-magnet behavior with distinct frequency dependence. This work deepens the theory of 2D COS-IR and also enriches the theoretical and experimental data of magnetism. © 2024 Elsevier B.V.
Keyword ：
Hydrothermal synthesis Hydrothermal synthesis Infrared spectroscopy Infrared spectroscopy Magnetic susceptibility Magnetic susceptibility Rare earths Rare earths Single crystals Single crystals
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| GB/T 7714 | Cheng, Ling-Ling , Meng, Ming-Ze , Chen, Yi-Ping et al. Study on magnetic properties of two dysprosium(III)-substituted antimonotungstates with different substitution modes [J]. | Journal of Molecular Structure , 2024 , 1308 . |
| MLA | Cheng, Ling-Ling et al. "Study on magnetic properties of two dysprosium(III)-substituted antimonotungstates with different substitution modes" . | Journal of Molecular Structure 1308 (2024) . |
| APA | Cheng, Ling-Ling , Meng, Ming-Ze , Chen, Yi-Ping , Liu, Xin-Ting , Qiu, Zhen-Chao , Sun, Yan-Qiong . Study on magnetic properties of two dysprosium(III)-substituted antimonotungstates with different substitution modes . | Journal of Molecular Structure , 2024 , 1308 . |
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Two novel vanadoborate compounds, [Cu(en)2]3[Li(H2O)]4[Li(H2O)3]2[V12B18O50(OH)10(H2O)]2 & sdot;33.5H2O (1) and (H2en)4[Li(H2O)]4[V12B18O55(OH)5(H2O)]& sdot;14H2O (2), were synthesized via hydrothermal synthesis under identical conditions except for temperature. Structural analysis revealed that although both contain [V12B18O60]n- cluster anion, the different countercations potentially lead to variations in the [V12B18O60]ncluster anion skeletons. In compound 1, the V4+/V5+ ratio was 10:2; while in compound 2 the ratio was 11:1. It is speculated that different countercations may influence the valence states of cluster anions. In this study, quantum chemical calculations revealed that the aromaticity and activity of the two compounds were different, and twodimensional correlation infrared spectroscopy (2D-COS-IR) under magnetic perturbation confirmed that distinct response peaks of functional group vibrations to the magnetic field due to the different V4+/V5+ ratios and aromaticity of the two compounds. An electrochemical analysis revealed that compound 2 exhibits higher electrocatalytic activity. The results of quantum chemical calculations are aligned not only with the changes in the 2D-COS-IR spectra but also with the conclusions obtained from experiments on electrochemical properties. Overall, this work proposes a novel strategy for interpreting the alteration of vanadoborate anionic skeleton due to the introduction of different countercations by combining 2D-COS-IR with quantum chemical calculations.
Keyword ：
Electrocatalyst Electrocatalyst Quantum chemical calculation Quantum chemical calculation spectroscopy spectroscopy Two-dimensional correlation infrared Two-dimensional correlation infrared Vanadoborate Vanadoborate
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| GB/T 7714 | Meng, Ming-Ze , Shi, Gui-Dong , Cheng, Ling-Ling et al. Two-dimensional correlation infrared spectroscopy study on vanadoborate anionic skeleton regulated by countercations [J]. | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2024 , 311 . |
| MLA | Meng, Ming-Ze et al. "Two-dimensional correlation infrared spectroscopy study on vanadoborate anionic skeleton regulated by countercations" . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 311 (2024) . |
| APA | Meng, Ming-Ze , Shi, Gui-Dong , Cheng, Ling-Ling , Chen, Yi-Ping , Zhang, Yong-Fan , Lin, Wei . Two-dimensional correlation infrared spectroscopy study on vanadoborate anionic skeleton regulated by countercations . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2024 , 311 . |
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Three novel vanadoborates with crown-shaped V12B32 cluster cages were successfully synthesized, differing only in their countercation. X-ray photoelectron spectroscopy (XPS) and Bond valence sum (BVS) analyses revealed distinct V4+/V5+ ratios (11:1, 10:2, and 10:2) in the cluster cage of the three compounds. Structural analyses indicated that the valence state ratio was modulated by the countercation. The magnetic properties of these compounds were examined using variable-temperature magnetic susceptibilities and two-dimensional correlation infrared spectroscopy (2D-COS-IR) under magnetic perturbation. This approach elucidated the origin and variability of their magnetic properties, demonstrating that the vanadium valence ratio and countercation significantly influence the magnetic behaviour of vanadoborates. The present study highlights the effectiveness of the transition of the vanadium valence state in the cluster cage by altering the countercation, providing a new avenue for the study of magnetically modulated materials. © 2024 Elsevier B.V.
Keyword ：
Magnetic properties Magnetic properties Polyoxometalate Polyoxometalate Two-dimensional correlation infrared spectroscopy Cluster Two-dimensional correlation infrared spectroscopy Cluster Vanadoborate Vanadoborate
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| GB/T 7714 | Meng, M.-Z. , Shi, G.-D. , Cheng, L.-L. et al. The magnetic modulation by the valence transition of polyoxometalate [J]. | Journal of Molecular Structure , 2024 , 1318 . |
| MLA | Meng, M.-Z. et al. "The magnetic modulation by the valence transition of polyoxometalate" . | Journal of Molecular Structure 1318 (2024) . |
| APA | Meng, M.-Z. , Shi, G.-D. , Cheng, L.-L. , Chen, Y.-P. , Sun, Y.-Q. . The magnetic modulation by the valence transition of polyoxometalate . | Journal of Molecular Structure , 2024 , 1318 . |
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This study introduces two novel sandwich-type tungsten-oxygen cluster compounds synthesized by hydrothermal methods, H4(C6H12N2H2)3{Na(H2O)2[Mn2(H2O)(GeW9O34)]}2 (Compound 1) and H2(C6H12N2H2)3.5{Na3(H2O)4[Co2(H2O)(GeW9O34)]2}17H2O (Compound 2). The two compounds comprise cluster anions [GeW9O34]10- coordinated with transition metal atoms, either Mn or Co, and are stabilized by organic ligands. These compounds are crystallized in the hexagonal crystal system and P63/m space group. The two compounds were characterized through various techniques. Fourier transform infrared (IR) spectroscopy showed absorption peaks of anionic backbone vibrations of the Keggin cluster at 500-1000 cm-1, IR spectral peaks of delta(N-H) and nu as(C-N) of the ligand triethylenediamine at 1000-2000 cm-1, and IR spectral peaks of the ligand nu as(N-H) and nu as(O-H) of water at 3000-3500 cm-1. Despite similar one-dimensional (1D) IR spectra due to the same cluster anions and similar molecular structures, the two compounds exhibited distinct responses in two-dimensional correlation spectroscopy with IR under magnetic and thermal perturbations. Under magnetic perturbation, Compound 1 showed a strong response peak for nu as(W-Ob-W), while Compound 2 exhibited a strong response peak for nu as(W=Od), possibly linked to differing magnetic particles. Similarly, Compound 1 displayed a strong response peak under thermal perturbation for nu as(W-Oc-W). In contrast, Compound 2 showed a strong response peak for nu as(W=Od); these results may be attributed to the different hydrogen bonding connections between the two compounds, which affect the groups in distinct ways through vibration and transmit these vibrations to the W-O bonds. The research presented in this paper expands the theoretical and experimental data of 2D correlation IR spectroscopy. Graphical abstract This is a visual representation of the abstract.
Keyword ：
2D-COS 2D-COS crystal structure crystal structure infrared spectroscopy infrared spectroscopy IR IR Tungsten oxide cluster compound Tungsten oxide cluster compound two-dimensional correlation spectroscopy two-dimensional correlation spectroscopy
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| GB/T 7714 | Mi, Wen-Jun , Bi, Wen-Chao , Meng, Ming-Ze et al. A Spectroscopic Method for Distinguishing Two Novel Sandwich-Type Tungsten Oxide Cluster Compounds [J]. | APPLIED SPECTROSCOPY , 2024 . |
| MLA | Mi, Wen-Jun et al. "A Spectroscopic Method for Distinguishing Two Novel Sandwich-Type Tungsten Oxide Cluster Compounds" . | APPLIED SPECTROSCOPY (2024) . |
| APA | Mi, Wen-Jun , Bi, Wen-Chao , Meng, Ming-Ze , Chen, Yi-Ping , Sun, Yan-Qiong . A Spectroscopic Method for Distinguishing Two Novel Sandwich-Type Tungsten Oxide Cluster Compounds . | APPLIED SPECTROSCOPY , 2024 . |
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Two novel vanadoborates were synthesized under hydrothermal conditions with different conformations (eclipsed and staggered) Li-5[V6B20O39(OH)(11)]middot8H(2)O 1 and (enH)(2)(enH(2))(2)Cs-2[V6B20O42(OH)(8)(H2O)(0.5)]middot3H(2)O 2 (en = ethylenediamine) and analyzed by single crystal X-ray diffraction, powder X-ray diffraction (PXRD) analysis, two-dimensional infrared correlation spectroscopy (2D-IR COS) Characterization and density functional theory calculations. The cluster anion of both compounds is [V6B20O50](16-), which is a sandwich structure composed of a V6 ring and two [B10O16] triangles. In compound 2, the two [B10O16] triangles of the [V6B20O50] (16-)cluster anion are staggered by 60 degrees, forming an isomer configurationally different from compound 1. The similarities and differences between the 2D-IR COS spectra of the two compounds are explained from the structural point of view. Theoretical calculation shows that two staggered cluster anions have similar in energies and thus should be able to coexist. This study not only fills the gap in the study of the isomer of vanadoborates, but also makes an outstanding contribution to the study of the self-assembly mechanism of polyoxometalates. (C) 2022 Elsevier B.V. All rights reserved.
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| GB/T 7714 | Shi, Gui-dong , Cheng, Ling -ling , Gao, Xiao-mei et al. Study on the configuration isomerism of [V6B20O50](16)- cluster cage [J]. | JOURNAL OF MOLECULAR STRUCTURE , 2023 , 1274 . |
| MLA | Shi, Gui-dong et al. "Study on the configuration isomerism of [V6B20O50](16)- cluster cage" . | JOURNAL OF MOLECULAR STRUCTURE 1274 (2023) . |
| APA | Shi, Gui-dong , Cheng, Ling -ling , Gao, Xiao-mei , Xia, Ze-min , Chen, Yi-ping , Lin, Wei . Study on the configuration isomerism of [V6B20O50](16)- cluster cage . | JOURNAL OF MOLECULAR STRUCTURE , 2023 , 1274 . |
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Abstract ：
通过水热法合成了一例新颖的稀土钨多酸化合物H_(26)(C_2H_8N_2H_2)K(H_2O)[K(H_2O)Nd_8(H_2O)_2(W_3O_(12))(SiW_(10)O_(38))_4]·18H_2O 1。该化合物的不对称单元由两个[SiW_(10)O_(38)]~(12-)通过一个{Nd_4(H_2O)~(12+)}结构单元和W_3O_(12)连接而成。化合物1簇阴离子通过K离子连接成一维无限链，再通过氢键连接成二维平面结构。针对该化合物，做了一系列表征，测试了其二维相关红外光谱，并对其作了详细分析，结果说明化合物1簇阴离子振动偶极矩对磁场和温度的变化均有响应峰，2D-IR COS提供了一种结构表征新方法。
Keyword ：
二维相关红外光谱 二维相关红外光谱 晶体结构 晶体结构 水热法 水热法 钨多酸 钨多酸
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| GB/T 7714 | 程玲玲 , 石桂栋 , 陈义平 . 基于二缺位钨多酸化合物的二维相关红外光谱研究 [J]. | 光谱学与光谱分析 , 2023 , 43 (S1) : 35-36 . |
| MLA | 程玲玲 et al. "基于二缺位钨多酸化合物的二维相关红外光谱研究" . | 光谱学与光谱分析 43 . S1 (2023) : 35-36 . |
| APA | 程玲玲 , 石桂栋 , 陈义平 . 基于二缺位钨多酸化合物的二维相关红外光谱研究 . | 光谱学与光谱分析 , 2023 , 43 (S1) , 35-36 . |
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一个新颖的磷掺杂硼钒氧簇化合物[Li(H_2O)_2]_2[Cu(en)_2]_3[H_2en]_2[V_(12)P_(12)B_6O_(68)(OH)_4(H_2O)]·3(H_2O)1通过水热法合成，通过Li~+连接成一维无限结构，再通过氢键连成三维立体结构。针对该化合物，通过二维红外相关光谱并作了详细分析，化合物1簇阴离子振动偶极矩对磁场和温度的变化均有响应峰，2D-IR COS提供了一种结构表征新方法。
Keyword ：
二维相关红外光谱 二维相关红外光谱 晶体结构 晶体结构 硼钒多酸 硼钒多酸
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| GB/T 7714 | 石桂栋 , 程玲玲 , 陈义平 . 磷掺杂硼钒氧簇化合物的二维相关红外光谱研究 [J]. | 光谱学与光谱分析 , 2023 , 43 (S1) : 37-38 . |
| MLA | 石桂栋 et al. "磷掺杂硼钒氧簇化合物的二维相关红外光谱研究" . | 光谱学与光谱分析 43 . S1 (2023) : 37-38 . |
| APA | 石桂栋 , 程玲玲 , 陈义平 . 磷掺杂硼钒氧簇化合物的二维相关红外光谱研究 . | 光谱学与光谱分析 , 2023 , 43 (S1) , 37-38 . |
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二维红外光谱普遍应用于温度对蛋白质结构的影响和中草药鉴别等领域。我们课题组在X射线单晶结构分析的基础上，利用热扰动和磁微扰的二维IR-COS研究了化合物中在热微扰和磁微扰下的二维相关红外光谱与化合物结构的关系规律。为进一步研究化合物磁性机理、生物应用等方面提供理论和实验依据。
Keyword ：
二维相关光谱 二维相关光谱 热微扰 热微扰 磁微扰 磁微扰 红外光谱 红外光谱
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| GB/T 7714 | 陈义平 , 孙瑞卿 , 高小梅 et al. 热微扰和磁微扰下二维相关红外光谱 [J]. | 光谱学与光谱分析 , 2023 , 43 (S1) : 27-28 . |
| MLA | 陈义平 et al. "热微扰和磁微扰下二维相关红外光谱" . | 光谱学与光谱分析 43 . S1 (2023) : 27-28 . |
| APA | 陈义平 , 孙瑞卿 , 高小梅 , 黄晓辉 , 石桂栋 , 程玲玲 . 热微扰和磁微扰下二维相关红外光谱 . | 光谱学与光谱分析 , 2023 , 43 (S1) , 27-28 . |
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Two novel dilacunary gamma-Keggin-type germanotungstates namely H-2[Cu(en)(2)](4) {[Cu(en)(2)](3)[GeW10O36](2)} (1), H-4[Co(en)(3)](2)[GeW10O36]center dot 2H(2)O (2), have been synthesized. Under visible light (lambda >= 420 nm) irradiation, compound 2 showed excellent photocatalytic activity against rhodamine B (RhB), and the degradation efficiency was 88.9% at pH 4.0, which was 8.5 times and 1.4 times higher than that at pH 7.0 and 1.0, respectively. Further mechanism study revealed that pH is an important factor affecting the photocatalytic reaction. The anti-tumor property of compounds was studied as the first case for [gamma-GeW10O36](8-) cluster anion in vitro. Remarkably, compound 1 has excellent anti-tumor activities against liver cancer Huh7 (IC50, 26.18 mu M), colon cancer SW480 (IC50, 28.36 mu M) and gastric cancer HGC-27(IC50, 41.31 mu M) with half maximal inhibitory concentration (IC50) less than 50 mu M. The relationship between structure and biology activity indicates that the H-bonding interactions may influence the anti-tumor activity. This novel difunctional germanotungstates not only provides a clue for development of high-efficiency photocatalysts but also highlights a promising strategy to construct antitumor germanotungstates-type drug.
Keyword ：
Antitumor activity Antitumor activity Photocatalysis Photocatalysis Polyoxometalate Polyoxometalate
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| GB/T 7714 | Huang, Xiao-Hui , Chen, Yi-Ping , Ying, Shao-Ming et al. Two novel dilacunary gamma-Keggin-type germanotungstates with difunctional photocatalytic and anti-tumor properties [J]. | JOURNAL OF MOLECULAR STRUCTURE , 2023 , 1292 . |
| MLA | Huang, Xiao-Hui et al. "Two novel dilacunary gamma-Keggin-type germanotungstates with difunctional photocatalytic and anti-tumor properties" . | JOURNAL OF MOLECULAR STRUCTURE 1292 (2023) . |
| APA | Huang, Xiao-Hui , Chen, Yi-Ping , Ying, Shao-Ming , Hu, Xiao-Jing , Sun, Yan-Qiong , Xing-Huang, Xiao . Two novel dilacunary gamma-Keggin-type germanotungstates with difunctional photocatalytic and anti-tumor properties . | JOURNAL OF MOLECULAR STRUCTURE , 2023 , 1292 . |
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Abstract ：
本发明涉及一种通流能力可调的旋转式高速开关阀，包括阀壳，所述阀壳的内部在进油口与出油口之间设置有过油口，所述过油口上设置有用以旋转调节过油口的通油开度的可调挡片。本发明通过设计了一种旋转式阀芯结构，能够实现控制油液的高速通断切换，同时避免直动式高速开关阀的碰撞与噪声；设计了一种挡片旋转式的通油调整部件，与上述旋转阀芯配合工作，可以实现高速开关阀最大通油流量的调节，为高速开关阀在阵列式系统中使用提供了便利；通过使用一种控制方法，能够实现快速精确地控制阀芯的旋转，进而精确地控制油液的通断切换。
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| GB/T 7714 | 杜恒 , 陈义平 , 兰金华 et al. 一种通流能力可调的旋转式高速开关阀及其控制方法 : CN202210397755.4[P]. | 2022-04-16 00:00:00 . |
| MLA | 杜恒 et al. "一种通流能力可调的旋转式高速开关阀及其控制方法" : CN202210397755.4. | 2022-04-16 00:00:00 . |
| APA | 杜恒 , 陈义平 , 兰金华 , 张泽鑫 , 王小康 , 生凯章 . 一种通流能力可调的旋转式高速开关阀及其控制方法 : CN202210397755.4. | 2022-04-16 00:00:00 . |
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