Two novel sandwich-type polyanions containing hexagonal {VO}6group (H2tpy)(Hbpe)3H[(VO)6(SbW9O33)2]·2H2O (1) and (H2tcy)6(Hbpp)6H4[VW12O40][(VO)6(SbW9O33)2]3·30H2O (2) (tpy = 4-(2,3,4-tri(pyridin-4-yl)butyl)pyridine, bpe = 1,2-(4-pyridyl)ethene, tcy = 1,2,4,5-tetra(pyridin-4-yl)cyclohexanol, bpp = 1,3-bis-(4-pyridyl)propane), were reported. Both compounds are built upon the complex hydrogen bonding networks of C–H⋯O and N-H⋯O occurred among inorganic anions and organic cations. Unusual in situ organic reactions involving C–C coupling are also observed in 1 and 2 regardless of the rigid bpe or flexible bpp. Compound 2 represents a rare case in which nano-sized α-Keggin [VW12O40]4− and sandwich-type [(VO)6(SbW9O33)2]6− anionic clusters are present in a common crystal framework.
You have access to this article
Please wait while we load your content...
Something went wrong. Try again?