A Rare Two-dimensional Network Based on 2,2 '-Biimidazole Bridged Double [PW11O39Ni](5-) Polyanions

作者：Wei, Lin-Heng^*; Wang, Zi-Liang; Li, Ming-Xue

来源：Zeitschrift Fur Naturforschung Section B-a Journal of Chemical Sciences, 2011, 66(12): 1237-1240.

DOI：10.5560/ZNB.2011.66b1237

• Polyoxometalate
• Crystal Structure
• Keggin
• Topology

A novel two-dimensional complex based on the mono-vacant Keggin anion [PW11O39](7-) [Ni(BIIM)(3)](3) [{Ni(BIIM)(2)}(2) (PNiW11O39)(2)(BIIM)]center dot H2O (BIIM = 2,2'-biimidazole), was hydrothermally synthesized and characterized by elemental and thenno-gravimetric analysis, IR and UV spectroscopy. Each [PW11O39](7-) anion captures an Ni2+ ion forming a [PNiW11O39](5-) polyanion, two of which are linked together by a BIIM ligand into a [(PNiW11O39)(2)(BIIM)](10-) polyanion supporting two Ni(BIIM)(2)(2+) units through two terminal oxygen atoms and affording a complicated [{Ni(BIIM)(2)}(2)(PNiW11O39)(2)(BIIM)(6-) heteropolyanion. Each of these units is further attached to four surrounding equivalent units by their own Ni(BIIM)(2)(2+) linkers into a two-dimensional brick wall-like network with (6,3) topology.

• 出版日期2011-12
• 单位河南大学