Four Noncentrosymmetric Molybdophosphates Discovered by Chemical Substitution Strategy

Four new molybdophosphates, A x B 4− x Mo 5 P 2 O 22 (A = Na, K, B = Rb, Cs), were successfully synthesized by chemical substitution strategy. All compounds crystallize in the C 222 1 space group and contain an unusual onedimensional chain ∞ [Mo 5 P 2 O 22 ] 4− .