Assembly of Large Purely Inorganic Ce-Stabilized/Bridged Selenotungstates: From Nanoclusters to Layers

作者：Chen, Wei-Chao; Qin, Chao^*; Li, Yang-Guang; Zang, Hong-Ying; Shao, Kui-Zhan; Su, Zhong-Min; Wang, En-Bo

来源：Chemistry-An Asian Journal, 2015, 10(5): 1184-1191.

DOI：10.1002/asia.201500004

• cerium
• layers
• nanoclusters
• polyoxometalates
• template synthesis

A versatile one-pot strategy was used to synthesize two large, purely inorganic selenotungstates, nanocluster K6Na16[Ce6Se6W67O230(OH)(6)(H2O)(17)]47H(2)O (1) and layer K9Na5Ce(H2O)(4)[Ce6Se10W51O187(OH)(7)(H2O)(18)]45H(2)O (2), by combining cerium centers and SeO32- heteroanion templates. Compound1 displays a Ce-stabilized hexameric nanocluster with one rhombus-like {W4O15(OH)(3)} unit in the center, whereas compound2 is the first example of a Ce-bridged layer selenotungstate network based on linkage of the unusual {Ce6Se10W51O187(OH)(7)(H2O)(18)} clusters and additional Ce(H2O)(4) fragments via Ce-O-Se bridges. The compounds were characterized by elemental analyses, IR spectroscopy, thermogravimetric analyses, powder and single-crystal X-ray diffraction, and electrospray ionization mass spectrometry. Moreover, the electrochemical property of compound1 was also investigated.

• 出版日期2015-5
• 单位东北师范大学