✍ Scribed by Wei Zhang; Shuxia Liu; Ping Sun; Chundan Zhang; Fengji Ma; Dan Feng
No coin nor oath required. For personal study only.
Two new 3D framework solids based on tungstoantimonate [H 2 bpy] 2 [Ni(bpy)(Hbpy) 2 HSb-W 18 O 60 ]Á4H 2 O (1) and [H 2 bpy] 2 [Cu(bpy)(Hbpy) 2 HSbW 18 O 60 ]Á5H 2 O (2) (bpy = 4,4 0 -bipyridine) have been synthesized hydrothermally and structurally characterized by elemental analyses, IR spectra, thermal stability analyses, and single-crystal X-ray diffraction analysis. Structure analysis reveals that both of the structures exhibit 3D host frameworks constructed from the non-classical Dawson-like [SbW 18 O 60 ] 9À polyoxoanions building units and 1D coordination cationic chains ([Ni(bpy)(Hbpy) 2 ] n 4n+ for 1 or [Cu(bpy)(Hbpy) 2 ] n 4n+ for 2), which represent the first 3D frameworks composed of Dawsonlike [SbW 18 O 60 ] 9À polyoxoanions. Furthermore, the compound 2-modified carbon paste electrode (2-CPE) displays good electrocatalytic activity toward the reduction of nitrite.
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