The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер 16(9), С. 2204 - 2211

Опубликована: Фев. 21, 2025

Great efforts have been made to establish the structure-property relationships of ligand-protected metal nanoclusters. An alkynyl-protected gold nanocluster Au28(tBuC6H4C≡C)20 (Au28-C2) was synthesized and structurally characterized. It has an isostructural kernel a quite similar ligand shell its counterpart Au28(tBuC6H4S)20 (Au28-S), which provides valuable platform for studying effects on luminescence clusters. The emission intensity Au28-C2 in solution is ∼10-fold that Au28-S. only structural difference between these two clusters donor atom or group, i.e., C≡C versus S Temperature-dependent experiments indicate Au28 different thermodynamic behaviors radiative processes. study excited-state dynamics by transient absorption spectroscopy indicates larger triplet-state population than This work shows important properties nanoclusters, provide new perspectives designed synthesis functional

Язык: Английский