Synthesis and characterization of an unprecedented water-soluble tris-functionalized Anderson-type polyoxometalate

Zhang, Yunshen; Jia, Huiying; Li, Qi; Huang, Yichao; Wei, Yongge

doi:10.1016/j.molstruc.2020.128555

Cited by 9 publications

(4 citation statements)

References 31 publications

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“…Different from Mn-Anderson which could be modified in double sides with organic ligands, Cr-Anderson could be functionalized only in single side with high yield and high selectivity, even when the ratio of triol ligands to the parent Cr-Anderson was two or much higher than two. 72,73 The other side of Triol-Cr-Anderson could be further modified in a stepwise manner with other different triol ligands ( e.g. Triol-CH 2 OH, Triol-CH 3 ).…”

Section: Cr-andersonmentioning

confidence: 99%

Latest progress in asymmetrically functionalized Anderson-type polyoxometalates

Zhuang

Sun

Lin

et al. 2023

Inorg. Chem. Front.

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Section: Cr-andersonmentioning

confidence: 99%

Latest progress in asymmetrically functionalized Anderson-type polyoxometalates

Zhuang

Sun

Lin

et al. 2023

Inorg. Chem. Front.

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“…Ammonium (NH 4 + ) salts make up a representative class of reactants. Many structures of POMs with NH 4 + as the countercations have been reported, such as Anderson-type NH 4 (MMo 6 )-POMs (M = Zn, Cu, Cr), , sandwiched NH 4 (Co 3 Mo 14 )-POMs, and three-dimensional NH 4 (BiMo 8 )/(Bi 2 W 22 )-POMs . Urea can decompose to produce NH 4 + , which is widely used in hydrothermal synthesis as a pH-regulating agent.…”

Section: Introductionmentioning

confidence: 99%

General Strategy for Preparing Uniform Polyoxometalate Microcrystals with Selectively Exposed Low-Index Facets

Zhang,

Tian,

et al. 2023

Crystal Growth & Design

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Polyoxometalate (POM) microcrystals have unique molecular structures and abundant acid−base sites, making them good candidates as crystalline catalysts. The facets of POM materials can greatly affect their catalytic activity due to the different atomic arrangements in various facets. Many factors affect the nucleation and growth processes of crystalline materials; therefore, preparing uniform POM microcrystals with selectively exposed facets is a challenge. In this work, we report a general strategy for preparing polyoxometalate microcrystals of ammonium salts with selective exposure of low-index facets by the hydrothermal decomposition of urea. The obtained NH 4 −PMo ([PMo 12 O 40 ] 3− ) microcrystals show uniform dodecahedral cubes with selective exposure of (110) facets. A series of controlled experiments demonstrates that the rate and amount of NH 4 + production play key roles in the growth of POM microcrystals. NH 4 −PMo microcrystals exhibit excellent activity in the Knoevenagel condensation reaction, and their catalytic activities have a positive correlation with the exposed (110) facets of NH 4 −PMo. NH 4 −PMo microcrystals can provide more Lewis acid−base sites due to their high specific surface area and selectively exposed (110) facets. Moreover, NH 4 −PW ([PW 12 O 40 ] 3− ) microcrystals with selectively exposed ( 110) facets were also successfully prepared by the same method, indicating that this preparation strategy has great potential to be applied to the synthesis of other valuable POM microcrystals.

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“…The Wei group designed a large number of different Anderson-type POMs and crystal of their organic derivatives via this approach (Figure 2). They afterward defined a series of structure of new Anderson-type POMs and the relevant derivatives [7][8][9][10][11][12][13] through single-crystal Xray diffraction, infrared spectrum, NMR spectrum and liquid chromatography, which greatly promoted the development of synthesis Anderson-type POMs and structural chemistry. The previous research about Anderson-type POMs mainly attach great importance to the synthesis and preparation of new compounds and characterization, etc.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances of Anderson-Type Polyoxometalates as Catalysts Largely for Oxidative Transformations of Organic Molecules

et al. 2022

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Anderson-type ([XM6O24]n−) polyoxometalates (POMs) are a class of polymetallic-oxygen cluster inorganic compounds with special structures and properties. They have been paid extensive attention by researchers now, due to their chemical modification and designability, which have been widely applied in the fields of materials, catalysis and medicine. In contemporary years, the application of Anderson-type POMs in catalytic organic oxidation reaction has gradually shown great significance for the research of green catalytic process. In this paper, we investigate the application of Anderson-type POMs in organic synthesis reaction, and these works are summarized according to the different structure of POMs. This will provide a new strategy for further investigation of the catalytic application of Anderson-type POMs and the study of green catalysis.

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Synthesis and characterization of an unprecedented water-soluble tris-functionalized Anderson-type polyoxometalate

Cited by 9 publications

References 31 publications

Latest progress in asymmetrically functionalized Anderson-type polyoxometalates

Latest progress in asymmetrically functionalized Anderson-type polyoxometalates

General Strategy for Preparing Uniform Polyoxometalate Microcrystals with Selectively Exposed Low-Index Facets

Recent Advances of Anderson-Type Polyoxometalates as Catalysts Largely for Oxidative Transformations of Organic Molecules

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