1
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Lian C, Yang GY. Three Double-Layered {Ni 8}@{B n} 2 ( n = 3, 4, 6) Cluster Sandwiched Polyoxometalates. Inorg Chem 2023; 62:21409-21415. [PMID: 38048264 DOI: 10.1021/acs.inorgchem.3c03533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
The reaction of [A-α-GeW9O34]10- with Ni2+ in the presence of inorganic boron sources yielded three unprecedented sandwiched Ni-added polyoxometalates (NiAPs): K6Na7H7[({Ni8(μ6-O)(OH)2}@{B3O6(OH)3}2)@(B-α-GeW9O34)2]·16H2O (1), K4Na4H12[({Ni8(μ6-O)}@{B4O8(OH)3}2)@(B-α-GeW9O34)2]·16H2O (2), and K10Na6[({Ni8(μ6-O)}@ {B6O9(OH)5}2)@(B-α-GeW9O34)2]·12H2O (3). The common feature of 1-3 is that a rare double-layered {Ni8}@{Bn}2 (n = 3,4,6) cluster is inlaid in their sandwich belts. The {Ni8} cluster is composed of two cubane {Ni4} clusters by six bridging oxygen atoms and sharing a μ6-O atom. The numbers of boron atoms in the {Ni8}@{Bn}2 (n = 3,4,6) clusters of 1-3 are different, namely, {Ni8}@{B3}2, {Ni8}@{B4}2, and {Ni8}@{B6}2 clusters. To the best of our knowledge, such architectures containing a double-layered {Ni8}@{Bn}2 (n = 3,4,6) cluster in the sandwich belts are the first observed in POM chemistry. Furthermore, 2 was investigated as an efficient heterogeneous catalyst for the Knoevenagel condensation of various aldehydes with malononitrile at room temperature.
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Affiliation(s)
- Chen Lian
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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2
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Lian C, Li HL, Yang GY. High-Nuclear Ni-Substituted Poly(polyoxometalate) Containing an Anderson-like {Cs 7} Cluster. Inorg Chem 2022; 61:11335-11341. [PMID: 35829694 DOI: 10.1021/acs.inorgchem.2c01499] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel high-nuclear Ni-substituted poly(polyoxometalate) [poly(POM)], [H2N(CH3)2]2Na18Cs2H13[(Cs7(H2O)6)@{(PO4)-@(Ni4(OH)3(WO4))3@(B-α-PW9O34)3}2]·30H2O (1), has been successfully developed and structurally characterized. The polyoxoanion of 1 can be viewed as a unique huge sandwich structure made of an unprecedented Cs7(H2O)6 ({Cs7}) cluster core encapsulated by two trimeric [(PO4)@(Ni4(OH)3(WO4))3@(B-α-PW9O34)3]21- subunits, in which the {Cs7} cluster presents an interesting Anderson-like arrangement and is the first example of a classical POM configuration based on the alkali metal cluster in the POM chemistry. The polyoxoanion can also be described as an unusual [(Cs7(H2O)6)@{(PO4)@(Ni4(OH)3(WO4))3}2]19+ cluster packaged by six {PW9} fragments. Furthermore, investigations on the Knoevenagel condensation reaction reveal that 1 has good catalytic activity for the condensation of various aldehydes and malononitrile into corresponding products with excellent yields.
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Affiliation(s)
- Chen Lian
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Hai-Lou Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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3
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A ring-shaped 12-Ti-substituted poly(polyoxometalate): synthesis, structure, and catalytic properties. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1215-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Ying T, Li Y, Song N, Tan Y, Tang Y, Zhuang J, Zhang H, Wang L. Semi-conductive, Switchable Dielectric and Photoluminescent Properties of Two High-Temperature Phase Transition Hybrids. Chem Asian J 2021; 16:3664-3668. [PMID: 34519418 DOI: 10.1002/asia.202100837] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/06/2021] [Indexed: 11/07/2022]
Abstract
Bistable switches (electrical switching between "ON" and "OFF" bistable states) have gradually developed into an ideal category of highly intelligent materials, due to their significant applications in optical technology, signal processors, data storage and other switchable media applications in the field of electrical devices. Here, we successfully designed and synthesized [(FC6 H4 C2 H4 NH3 )2 MCl4 ]n (FC6 H4 C2 H4 NH3 + )=deprotonated 4-fluoro- phenethylamine; M=Cd (1), Mn (2)), which realized the coupling of thermo-dielectric switching characteristics, semi-conductor characteristics and photo-luminescent properties. DSC (differential scanning calorimetry) and dielectric measurements show that 1 is a sensitive dielectric bistable switch between the high dielectric (ON) and low dielectric (OFF) states. The temperature-variable single crystal structure shows that the both 1 and 2 undergo a high-temperature reversible phase transition around 383 K/380 K, which is caused by the order-disordered transformation of organic cations and the slight distortion of the inorganic framework. In particular, 1 shows outstanding switchable dielectric behavior and semiconducting properties. Further, 1 and 2 emit strong green and yellow luminescence at 527 and 595 nm, respectively.
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Affiliation(s)
- Tingting Ying
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yukong Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Ning Song
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yuhui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yunzhi Tang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Jiachang Zhuang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Hao Zhang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Lijuan Wang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
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5
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Li HL, Lian C, Yang GY. {Ti 6}/{Ti 10} Wheel Cluster Substituted Silicotungstate Aggregates. Inorg Chem 2021; 60:16852-16859. [PMID: 34672574 DOI: 10.1021/acs.inorgchem.1c02788] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two novel Ti-oxo wheel cluster substituted silicotungstates (STs) [H2N(CH3)2]9H9[Ti6O6(SiW10O37)3]·11H2O (1) and [H2N(CH3)2]16H10[Ti10O11(SiW10O37)2(SiW9O35)2]·14H2O (2) have been made by hydrothermal reactions. The polyoxoanion of 1 is a ring-shaped trimer where a Ti6O6 ({Ti6}) wheel cluster is encapsulated by three divacant [SiW10O37]10- (SiW10O37) fragments. However, 2 is built by two divacant SiW10O37 units and two rare trivacant [SiW9O35]12- (SiW9O35) fragments and further installs an unprecedented Ti10O11 ({Ti10}) double-wheel cluster. To the best of our knowledge, 2 is rare in POM chemistry. Studies on the catalytic oxidation properties reveal that 1 exhibits high catalytic activity toward the oxidation of various sulfides using H2O2 as an oxidant. Furthermore, 1 can be facilely recycled and reused for at least five cycles without obvious loss of catalytic activity.
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Affiliation(s)
- Hai-Lou Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Chen Lian
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
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6
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Abstract
A novel tetrahedral μ-AsO4-bridging hexadecanuclear Ni-substituted silicotungstate (ST) Na21H10[(AsO4){Ni8(OH)6(H2O)2(CO3)2(A-α-SiW9O34)2}2]·60H2O (1) was made by the reactions of trivacant [A-α-SiW9O34]10- ({SiW9}) units with Ni2+ cations and Na3AsO4·12H2O and characterized by IR spectrometry, elemental analysis, thermogravimetric analysis (TGA), and powder X-ray diffraction (PXRD). 1 contains a novel polyoxoanion [(AsO4){Ni8(OH)6(H2O)2(CO3)2(A-α-SiW9O34)2}2]31- built by four trivacant Keggin [A-α-SiW9O34]10- fragments linked through an unprecedented [(AsO4){Ni8(OH)6(H2O)2(CO3)2}2]9+ cluster, where the tetrahedral AsO4 acts as an exclusively μ2-bridging unit to link multiple Ni centers; such a connection mode appears for the first time in polyoxometalate chemistry. Furthermore, the electrochemical and catalytic oxidation properties of compound 1 have been investigated.
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Affiliation(s)
- Chen Lian
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Hai-Lou Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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7
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Zhang M, Liu B, Zhang H, Zhang C, Wang J, Niu J. Synthesis and Mechanism Studies of a High-Nuclear Mn72W48 Cluster. Inorg Chem 2020; 59:13733-13740. [DOI: 10.1021/acs.inorgchem.0c02096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mengrui Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Bin Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Hongduan Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Chao Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
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8
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Sun JJ, Wang YL, Li XY, Yang GY. A new 3 D {Na 2Cu 3}-substituted polyoxometalate: synthesis, structure and its photocatalytic and electrochemical properties. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1805601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jun-Jun Sun
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China
| | - Yue-Lin Wang
- College of Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Xu-Yan Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China
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Li HL, Lian C, Yin DP, Yang GY. Nonanuclear Heterometal Five-Layer Sandwich-Type Polyoxometalate. Inorg Chem 2020; 59:6131-6136. [DOI: 10.1021/acs.inorgchem.0c00214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hai-Lou Li
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Chen Lian
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Da-Peng Yin
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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10
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Sun JJ, Wang YL, Yang GY. Two new hexa-Ni-substituted polyoxometalates in the form of an isolated cluster and 1-D chain: syntheses, structures, and properties. CrystEngComm 2020. [DOI: 10.1039/d0ce01446j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Two new hexa-Ni-substituted polyoxometalates are made and characterized, exhibiting electrochemical performance and photocatalytic activity for the degradation of organic dyes under UV irradiation.
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Affiliation(s)
- Jun-Jun Sun
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Yue-Lin Wang
- College of Science
- Inner Mongolia Agricultural University
- Hohhot
- China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
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