Synthesis and Crystal Structure of a Novel 1D Chain-like Organic Inorganic Hybrid Rare Earth Derivative of Polyoxometalate: H_(0.5)Sm(H_2O)_6_(0.25)Sm(H_2O)_5_(0.25){Sm(H_2O)_7Sm(H_2O)_2-(DMSO)SiW_(11)O_(39)}·4.5H_2O

摘要

A 1D chain-like organic-inorganic hybrid rare earth derivative of polyoxometalate H0.5[Sm(H2O)6]0.25[Sm(H2O)5]0.25{[Sm(H2O)7][Sm(H2O)2(DMSO)][SiW11O39]}·4.5H2O has been firstly synthesized by reaction of α-K8SiW11O39·13H2O, HClO4, Sm2O3 with dimethyl sulfoxide (DMSO) and characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. The neighboring polyanionic units {[Sm(H2O)7][Sm(H2O)2(DMSO)][SiW11O39]}2 are bridged together to a 1D chain structure by means of [Sm(H2O)2(DMSO)]3+ ion.