Three new metal chalcogenide open frameworks built through co-assembly and/or hybrid assembly from supertetrahedral T5-InOS and T3-InS nanoclusters

Abstract

Reported here are three new metal chalcogenide open frameworks built from supertetrahedral [In₃₅S₅₂O₈] (denoted as T5-InOS or o-T5) and [In₁₀S₂₀] (denoted as T3-InS) nanoclusters of different sizes and compositions via co-assembly and/or hybrid assembly modes. Such a set of cluster-based superlattices with dia topological structures clearly exhibit quantum size effects and electronic coupling interaction of adjacent nanoclusters, which can effectively explain that the band gap of the T3–(o-T5) hybrid-assembled material lies in the middle of T3–T3 and (o-T5)–(o-T5) co-assembled materials.