AI Article Synopsis
- One or two phenylacetylide ligands were selectively removed from the IrAu superatomic core using tetrafluoroboric acid, resulting in the formation of open sites on the core structure.
- Optical and nuclear magnetic resonance spectroscopies, along with density functional theory calculations, confirmed that the overall structure remained intact despite the ligand removal.
- The newly created open sites were able to trap isocyanide molecules efficiently, while diisocyanide led to the formation of larger IrAu superatom structures through dimer or trimer assembly.
Article Abstract
One or two phenylacetylide (PA) ligand(s) were successfully removed from the IrAu superatomic core of [IrAu(dppe)(PA)] (dppe=1,2-bis(diphenylphosphino)ethane) by reaction with controlled amounts of tetrafluoroboric acid. Optical and nuclear magnetic resonance spectroscopies and density functional theory calculations revealed the formation of open Au site(s) on the IrAu core of [IrAu(dppe)(PA)] and [IrAu(dppe)] with the remaining structure intact. Isocyanide was efficiently trapped at the open electrophilic site on [IrAu(dppe)(PA)], whereas a dimer or trimer of the IrAu superatoms was formed using diisocyanide as a linker. These results open the door to designed assembly of chemically modified metal superatoms.
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