A series of Rb4Ln2(P2S6)(PS4)2 (Ln = La, Ce, Pr, Nd, Sm, Gd) rare earth thiophosphates with two distinct thiophosphate units [PVS4]3− and [PIV2S6]4−

Abstract

A new series of rare earth thiophosphates, Rb₄Ln₂(P₂S₆)(PS₄)₂ (Ln = La, Ce, Pr, Nd, Sm, Gd), containing two unique thiophosphate motifs, [P^VS₄]³⁻ and [P^IV₂S₆]⁴⁻, were synthesized using the high temperature molten flux crystal growth method by RbBr flux.