Two unprecedented entangled coordination polymers based on α-{SiW12O40}4−†
Abstract
Two novel entangled POM-based coordination polymers (CPs), namely [Co2(L)5(H2O)2(SiW12O40)] (1) and [Cu2(L)3(H2O)2(SiW12O40)]·H2O (2) (L = 4,4′-bis((1H-1,2,4-triazol-1-yl)methyl)biphenyl), have been hydrothermally synthesized. Compound 1 presents an unprecedented 2D + 2D → 3D polypseudorotaxane motif. The fascinating self-catenated framework of compound 2 contains three types of helical chains. In addition, the photocatalytic properties of compounds 1 and 2 have also been investigated.