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Toward Understanding the Growth Mechanism: Tracing All Stable Intermediate Species from Reduction of Au(I)–Thiolate Complexes to Evolution of Au25 Nanoclusters
Abstract
Despite 20 years of progress in synthesizing thiolated gold nanoclusters (Au NCs), the knowledge of their growth mechanism still lags behind. Herein the detailed process from reduction of Au(I)-thiolate complex precursors to the eventual evolution of and focusing to the atomically precise Au25 NCs was revealed for the first time by monitoring the time evolution of Au(I) precursor and Au NC intermediate species with ESI-MS. A two-stage, bottom-up formation and growth process was proposed: a fast stage of reduction-growth mechanism, followed by a slow stage of intercluster conversion and focusing. Balanced reactions of formation for each identified NC were suggested, backed by theoretical calculations of the thermodynamic driving force. This work advances one step further toward understanding the mechanism of formation and growth of thiolated Au NCs.
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Cites
Sub-nanometre sized metal clusters: from synthetic challenges to the unique property discoveries
Lu, Y., & Chen, W. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15325d · Cited by 1,152
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Zheng, K., Setyawati, M. I., Leong, D. T., & Xie, J. (2017) · ACS Nano · doi:10.1021/acsnano.7b02035 · Cited by 615
Self-citationChemical Flexibility of Atomically Precise Metal Clusters
Li, S., Li, N.-N., Dong, X.-Y., Zang, S.-Q., & Mak, T. C. W. (2024) · Chemical Reviews · doi:10.1021/acs.chemrev.3c00896 · Cited by 280
Transformation Chemistry of Gold Nanoclusters: From One Stable Size to Another
Zeng, C., Chen, Y., Das, A., & Jin, R. (2015) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.5b01150 · Cited by 258
Metadata
- Authors
- Luo, Z., Nachammai, V., Zhang, B., Yan, N., Leong, D. T., Jiang, D.-E., & Xie, J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-07-21
- Volume
- 136
- Issue
- 30
- Pages
- 10577-10580
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2315993746
- Cited by
- 345
- References
- 1
- FWCI
- 16.68
- Type
- journal article
- Language
- en
- Open access
- closed
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