Supercrystal engineering of atomically precise gold nanoparticles promoted by surface dynamics

Qiaofeng Yao, Lingmei Liu, Sami Malola, Meng Ge, Hongyi Xu, Zhennan Wu, Tiankai Chen, Yitao Cao, María Francisca Matus, Antti Pihlajamäki, Yu Han, Hannu Häkkinen, Jianping Xie

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The controllable packing of functional nanoparticles (NPs) into crystalline lattices is of interest in the development of NP-based materials. Here we demonstrate that the size, morphology and symmetry of such supercrystals can be tailored by adjusting the surface dynamics of their constituent NPs. In the presence of excess tetraethylammonium cations, atomically precise [Au25(SR)18]− NPs (where SR is a thiolate ligand) can be crystallized into micrometre-sized hexagonal rod-like supercrystals, rather than as face-centred-cubic superlattices otherwise. Experimental characterization supported by theoretical modelling shows that the rod-like crystals consist of polymeric chains in which Au25 NPs are held together by a linear SR–[Au(I)–SR]4 interparticle linker. This linker is formed by conjugation of two dynamically detached SR–[Au(I)–SR]2 protecting motifs from adjacent Au25 particles, and is stabilized by a combination of CH⋯π and ion-pairing interactions between tetraethylammonium cations and SR ligands. The symmetry, morphology and size of the resulting supercrystals can be systematically tuned by changing the concentration and type of the tetraalkylammonium cations.
Original languageEnglish (US)
JournalNature Chemistry
StatePublished - Nov 10 2022

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)


Dive into the research topics of 'Supercrystal engineering of atomically precise gold nanoparticles promoted by surface dynamics'. Together they form a unique fingerprint.

Cite this