A highly aluminum-doped β-isomer Keggin-type tungstoaluminate†
Abstract
A trialuminum-substituted β-isomer Keggin-type tungstoaluminate was synthesized and characterized, in which the pure metal–oxygen cluster [AlW8.5Al0.5{Al(OH2)}3(OH)3O34]6.5− consists of three kinds of aluminum sites: the central Al(1), the doped Al(5), and the substituted Al(2) and Al(3) centers.