Abstract

Cs2[AuI X 2][AuIII X 4](X = Cl, Br, and I) is well known for the three-dimensional perovskite-type gold mixed valence system. Recently, layered perovskite-type gold mixed valence complexes, [NH3(CH2)nNH3]2[(AuII2)(AuIIII4)(I3)2] (n = 7 and 8), have been synthesized. We have investigated the relationship between the structural dimensionality and the AuI-AuIII charge transfer interaction for Cs2[AuII2][AuIIII4] and [NH3(CH2)nNH3]2[(AuII2)(AuIIII4)(I3)2] (n = 7 and 8) by means of 197Au Mossbauer spectroscopy.

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