A novel bismuth ion-bridged chainlike assembly from paradodecatungstate [H2W_(12)O_(42)]~(10-)anions:(NH4)7[Bi(H2W12O42)]centre dot20H2O

摘要

A new polyoxotungstate(NH4)7[Bi(H2W12O42)] centre dot 20H2O has been synthesized in aqueous solution and characterized by elemental analysis,IR spectroscopy,TG analysis and single-crystal X-ray diffraction.The most interesting structural feature of 1 is that the paradodecatungstate [H2W12O42]~(10-)anions are linked,for the first time,by the trivalent main group atom Bi~(III)which appeared commonly as a heteroatom in polyoxometalate chemistry,into a one-dimensional chainlike structure.