A novel transition-metal-linked hexaniobate cluster with photocatalytic H-2 evolution activity

作者：Liang Zhijie; Zhang Dongdi; Liu Qisen; Ma Pengtao; Niu Jingyang^*; Wang Jingping

来源：Inorganic Chemistry Communications, 2015, 54: 19-20.

DOI：10.1016/j.inoche.2015.01.033

• Polyoxoniobate
• Transition metal
• Photocatalytic
• Crystal structure

A novel transition-metal (TM) complex based on Lindqvist polyoxoniobate K-10[(Nb6O19)Cr-III(H2O)(2)](2)center dot 28H(2)O (1) has been synthesized by anew two-pot synthesis strategy and structurally characterized by single crystal X-ray diffraction analysis, IR spectrum, UV-vis spectroscopy, XRPD and TG analysis. Compound 1 crystallizes in the C2/m space group with a = 32.143(19) angstrom, b = 10.030(6) angstrom, c = 12.878(8) A, beta = 110.611(9)degrees, and V= 3886(4) angstrom(3). X-ray structure analysis reveals that polyanion [(Nb6O19)Cr-III(H2O)(2)](2)(10-) (1a) represents the first example of two nuclear dimeric polyoxoniobate, in which two Lindqvist anions [Nb6O19](8) are sandwiched by two {Cr-III(H2O)(2)} groups. Further, 1 exhibits photocatalytic H-2 evolution activity.

• 出版日期2015-4
• 单位河南大学