“…Indeed, both intramolecular and intermolecular interactions could restrict the vibration/rotation of cluster molecules and further improve their molecular properties. [57][58][59][60][61] The intermolecular interactions (such as C-H⋯F, C-H⋯π, π⋯π) were widely discovered in nanoclusters, while the study of the restriction of intramolecular rotations was insufficient in metal nanoclusters. In this work, we demonstrated that ligand engineering could be an efficient surface control strategy for activating the intra-/inter-molecular interactions of metal nanoclusters, achieving the functionalization of cluster-based nanomaterials.…”