2D-architecture via self-assembly of the novel sandwich-type polyoxometalate [Zn 3.2 Bi 0.8 (B-α-ZnW 9 O 34 ) 2 ] 15−

Autor: Hongxia Zhao, Cong Sun, Siran Qian, Liang Dashuai, Changlang Wu, Guowang Diao, Yu Zhengdong, Li Huan, Lubin Ni, Qin Wang
Rok vydání: 2017
Předmět:
Zdroj: Polyhedron. 133:343-347
ISSN: 0277-5387
DOI: 10.1016/j.poly.2017.05.054
Popis: A new sandwiched polyoxometalate Na 2 Zn 4 H 5 [Zn 3.2 Bi 0.8 (B-α-ZnW 9 O 34 ) 2 ]·52H 2 O {Zn 3.2 Bi 0.8 } ( 1 ) was synthesized from one-pot transformations of the trilacunary Keggin-type [B-α-BiW 9 O 33 ] 9− precursor via Bi/Zn exchange, followed by self-assembly of the sandwich-type polyanions. The {Zn 3.2 Bi 0.8 } polyanion was further self-assembled into 2D architecture by adjusting Zn 2+ and Na + cations. The compound ( 1 ) was characterized with a wide range of analytical methods, including single crystal and powder X-ray diffraction, thermogravimetric analysis and various spectroscopic techniques (FT-IR, Raman, UV–Vis). Electrochemical behavior of the compound ( 1 ) was also studied by cyclic voltammetry (CV) in sodium acetate buffer solution. Moreover, compound ( 1 ) also can act as a catalyst in the oxidation of cyclohexanol with hydrogen peroxide.
Databáze: OpenAIRE