Divergent Syntheses of Copper−Indium Bimetallic Single-Source Precursors via Thiolate Ligand Exchange

Several copper−indium bimetallic single-source precursors (SSPs 2−9) have been prepared efficiently by exchange reactions of (Ph3P)2CuIn(SEt)4 (1) with protic ligands. This divergent approach has been successfully applied on multigram scales to produce nearly quantitative yields of known and newly reported SSPs. The former group features the previously difficult target (Ph3P)2CuIn(SePh)4 (2), and the latter includes (Ph3P)2CuIn(SEt)2(SePh)2 (3), the first SSP to incorporate both sulfur and selenium within a single copper−indium bimetallic complex.

研究人员通过(Ph3P)2CuIn(SEt)4（1）与质子配体的配体置换反应，高效制备了数种铜铟双金属单源前驱体(SSPs，single-source precursors) 2~9。该发散式合成策略已成功应用于克级规模合成，可获得近乎定量产率的已知及新报道的单源前驱体。其中一类为此前难以合成的目标产物(Ph3P)2CuIn(SePh)4（2），另一类则包含(Ph3P)2CuIn(SEt)2(SePh)2（3）——这是首个在单个铜铟双金属配合物中同时引入硫与硒的单源前驱体。