The addition of metal iodides to polyiodides results in a competition between donor and acceptors in the system, and as a consequence the anionic networks can be modified in a controlled way. The inclusion of complex gold iodides into (R3S)Ix polyiodides results in the compounds (Et3S)[AuI4]⋅2 I2 (1) and (Me3S)2[AuI4][I3] (2).
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Svensson et al. (1999) studied this question.