Preparation and characterization of new peroxyniobium-containing phosphotungstates with dawson structures

Non‐aqueous Molecularly Imprinted Polymer/Polyoxometalate Nanocomposite Film With Enhanced Sensitivity for Ampicillin Detection

“…Figure 4b records the UV-Vis spectra of the [PSS/PAH/(P 2 W 18 / MIP) n ] multilayer films with n ranging from 1 to 10. The charac teristic absorption band of P 2 W 18 (196 nm) and MIP (227 and 276 nm) confirm that P 2 W 18 and MIP are incorporated into the composite films with no structural alteration [42]. In addition, the absorbance increases linearly with the number of P 2 W 18 -MIP layers (inset plot in Figure 4b) at 196, 227, and 276 nm, indicating the smooth deposition of P 2 W 18 and MIP in each layer of the multilayer architecture [43].…”

Non‐aqueous Molecularly Imprinted Polymer/Polyoxometalate Nanocomposite Film With Enhanced Sensitivity for Ampicillin Detection

“…Figure 4b records the UV-Vis spectra of the [PSS/PAH/(P 2 W 18 / MIP) n ] multilayer films with n ranging from 1 to 10. The charac teristic absorption band of P 2 W 18 (196 nm) and MIP (227 and 276 nm) confirm that P 2 W 18 and MIP are incorporated into the composite films with no structural alteration [42]. In addition, the absorbance increases linearly with the number of P 2 W 18 -MIP layers (inset plot in Figure 4b) at 196, 227, and 276 nm, indicating the smooth deposition of P 2 W 18 and MIP in each layer of the multilayer architecture [43].…”

A Polyniobotungstate-Based Hybrid for Visible-Light-Induced Phosphorylation of N-Aryl-Tetrahydroisoquinoline

“…Additionally, as shown in Figure S5, a strong absorption peak is observed in the UV–vis absorption spectrum at 303 nm, attributed to pπ­(O t ) → dπ*­(W) electronic transitions in the WO bonds, pπ­(O b,c )–dπ*­(W) electronic transitions between the levels of the W–O–W bonds, and ligand-to-metal charge transfer. A new and broad visible-light-absorption peak is observed at around 525 nm for Co - POM compared with the precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O . These absorption peaks are assigned to the d–d transitions of the Co ions.…”

“…The precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O and the organic substrate N -aryl tetrahydroisoquinolines 1 were synthesized according to the reported procedures. , Commercial reagents were used without further purification. The FTIR analysis, powder X-ray diffraction (PXRD), thermogravimetric analyses, and elemental analyses were done using the apparatus described in the reported procedures .…”

Reversible Zn 2+ /Al 3+ intercalation in niobium-substituted polyoxometalates and demonstration of energy storage smart windows

“…Preparation of the P 2 W 15 Nb 3 and NiO films P 2 W 15 Nb 3 was synthesized according to previous literature. [32][33][34] The TiO 2 substrate was prepared by the screen printing method using a 250 mesh screen, followed by a sintering process at 500 1C. The commercial TiO 2 paste (Dyesol 18NR-T) was dissolved in terpineol.…”

Non‐aqueous Molecularly Imprinted Polymer/Polyoxometalate Nanocomposite Film With Enhanced Sensitivity for Ampicillin Detection

“…Figure 4b records the UV-Vis spectra of the [PSS/PAH/(P 2 W 18 / MIP) n ] multilayer films with n ranging from 1 to 10. The charac teristic absorption band of P 2 W 18 (196 nm) and MIP (227 and 276 nm) confirm that P 2 W 18 and MIP are incorporated into the composite films with no structural alteration [42]. In addition, the absorbance increases linearly with the number of P 2 W 18 -MIP layers (inset plot in Figure 4b) at 196, 227, and 276 nm, indicating the smooth deposition of P 2 W 18 and MIP in each layer of the multilayer architecture [43].…”

A Polyniobotungstate-Based Hybrid for Visible-Light-Induced Phosphorylation of N-Aryl-Tetrahydroisoquinoline

“…Additionally, as shown in Figure S5, a strong absorption peak is observed in the UV–vis absorption spectrum at 303 nm, attributed to pπ­(O t ) → dπ*­(W) electronic transitions in the WO bonds, pπ­(O b,c )–dπ*­(W) electronic transitions between the levels of the W–O–W bonds, and ligand-to-metal charge transfer. A new and broad visible-light-absorption peak is observed at around 525 nm for Co - POM compared with the precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O . These absorption peaks are assigned to the d–d transitions of the Co ions.…”

“…The precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O and the organic substrate N -aryl tetrahydroisoquinolines 1 were synthesized according to the reported procedures. , Commercial reagents were used without further purification. The FTIR analysis, powder X-ray diffraction (PXRD), thermogravimetric analyses, and elemental analyses were done using the apparatus described in the reported procedures .…”

Reversible Zn 2+ /Al 3+ intercalation in niobium-substituted polyoxometalates and demonstration of energy storage smart windows

“…Preparation of the P 2 W 15 Nb 3 and NiO films P 2 W 15 Nb 3 was synthesized according to previous literature. [32][33][34] The TiO 2 substrate was prepared by the screen printing method using a 250 mesh screen, followed by a sintering process at 500 1C. The commercial TiO 2 paste (Dyesol 18NR-T) was dissolved in terpineol.…”

Non‐aqueous Molecularly Imprinted Polymer/Polyoxometalate Nanocomposite Film With Enhanced Sensitivity for Ampicillin Detection

“…Figure 4b records the UV-Vis spectra of the [PSS/PAH/(P 2 W 18 / MIP) n ] multilayer films with n ranging from 1 to 10. The charac teristic absorption band of P 2 W 18 (196 nm) and MIP (227 and 276 nm) confirm that P 2 W 18 and MIP are incorporated into the composite films with no structural alteration [42]. In addition, the absorbance increases linearly with the number of P 2 W 18 -MIP layers (inset plot in Figure 4b) at 196, 227, and 276 nm, indicating the smooth deposition of P 2 W 18 and MIP in each layer of the multilayer architecture [43].…”

A Polyniobotungstate-Based Hybrid for Visible-Light-Induced Phosphorylation of N-Aryl-Tetrahydroisoquinoline

“…Additionally, as shown in Figure S5, a strong absorption peak is observed in the UV–vis absorption spectrum at 303 nm, attributed to pπ­(O t ) → dπ*­(W) electronic transitions in the WO bonds, pπ­(O b,c )–dπ*­(W) electronic transitions between the levels of the W–O–W bonds, and ligand-to-metal charge transfer. A new and broad visible-light-absorption peak is observed at around 525 nm for Co - POM compared with the precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O . These absorption peaks are assigned to the d–d transitions of the Co ions.…”

“…The precursor K 8 H­[P 2 W 15 (NbO 2 ) 3 O 59 ]·12H 2 O and the organic substrate N -aryl tetrahydroisoquinolines 1 were synthesized according to the reported procedures. , Commercial reagents were used without further purification. The FTIR analysis, powder X-ray diffraction (PXRD), thermogravimetric analyses, and elemental analyses were done using the apparatus described in the reported procedures .…”

Reversible Zn 2+ /Al 3+ intercalation in niobium-substituted polyoxometalates and demonstration of energy storage smart windows

“…Preparation of the P 2 W 15 Nb 3 and NiO films P 2 W 15 Nb 3 was synthesized according to previous literature. [32][33][34] The TiO 2 substrate was prepared by the screen printing method using a 250 mesh screen, followed by a sintering process at 500 1C. The commercial TiO 2 paste (Dyesol 18NR-T) was dissolved in terpineol.…”