A decanuclear terbium-substituted arsenotungstate nanocluster compound and its preparation method and application
A technology of arsenic tungstate and clusters, which is applied in the field of polytungstate chemical material preparation, can solve the problem of blank anticancer activity research
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Embodiment 1
[0037] A decanuclear terbium substituted arsenotungstate nanocluster compound, its chemical formula is: [H 2 N(CH 3 ) 2 ] 6 Na 24 h 16 {[Tb 10 W 16 (H 2 O) 30 o 50 ](B-α-AsW 9 o 33 ) 8} 97H 2 O.
[0038] The above-mentioned decanuclear terbium-substituted arsenotungstate nanoclusters are synthesized by the traditional normal temperature aqueous solution method, and the preparation method is as follows:
[0039] 1.400 g (4.240 mmol) Na 2 WO 4 2H 2 O and 0.502 g (6.156 mmol) (CH 3 ) 2 Dissolve NH·HCl in 20 mL distilled water, add 0.5 mL (1 mol·L –1 ) NaAsO 2 solution. Use 6mol·L –1 hydrochloric acid to adjust the pH value of the above solution to 4.0 and then add 0.199 g (0.439 mmol) Tb(NO 3 ) 3 ·6H 2 O, then use 0.5 mol·L –1 hydrochloric acid to adjust the pH to 4.0, stirred at room temperature for 30 min, and stood to filter. After the filtrate stood for several weeks, colorless prismatic crystals were separated out, which was filtered again, and the...
Embodiment 2
[0041] A decanuclear terbium substituted arsenotungstate nanocluster compound, its chemical formula is: [H 2 N(CH 3 ) 2 ] 6 Na 24 h 16 {[Tb 10 W 16 (H 2 O) 30 o 50 ](B-α-AsW 9 o 33 ) 8} 97H 2 O.
[0042] The above-mentioned decanuclear terbium-substituted arsenotungstate nanoclusters are synthesized by the traditional normal temperature aqueous solution method, and the preparation method is as follows:
[0043] 1.400 g (4.240 mmol) Na 2 WO 4 2H 2 O and 0.502 g (6.156 mmol) (CH 3 ) 2 Dissolve NH·HCl in 20 mL distilled water, add 0.5 mL (1 mol·L –1 ) NaAsO 2 solution. Use 6mol·L –1 hydrochloric acid to adjust the pH value of the above solution to 4.0 and then add 0.212 g (0.439 mmol) Tb(NO 3 ) 3 ·6H 2 O, then use 0.5 mol·L –1 hydrochloric acid to adjust the pH to 4.0, stirred at room temperature for 30 min, and stood to filter. After the filtrate stood for several weeks, colorless prismatic crystals were separated out, which was filtered again. The c...
Embodiment 3
[0045] A decanuclear terbium substituted arsenotungstate nanocluster compound, its chemical formula is: [H 2 N(CH 3 ) 2 ] 6 Na 24 h 16 {[Tb 10 W 16 (H 2 O) 30 o 50 ](B-α-AsW 9 o 33 ) 8} 97H 2 O.
[0046] The above-mentioned decanuclear terbium-substituted arsenotungstate nanoclusters are synthesized by the traditional normal temperature aqueous solution method, and the preparation method is as follows:
[0047] 1.400 g (4.240 mmol) Na 2 WO 4 2H 2 O and 0.502 g (6.156 mmol) (CH 3 ) 2 Dissolve NH·HCl in 20 mL distilled water, add 0.5 mL (1 mol·L –1 ) NaAsO 2 solution. Use 6mol·L –1 Hydrochloric acid to adjust the pH value of the above solution to 4.5, add 0.212 g (0.439 mmol) Tb(NO 3 ) 3 ·6H 2 O, then use 0.5 mol·L –1 hydrochloric acid to adjust the pH to 4.5, stirred at room temperature for 30 min, stood and filtered, and the filtrate was allowed to stand for several weeks to separate out colorless prismatic crystals, which was filtered again, and t...
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