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PreprintCC BYChemRxiv

Central Atom Driven Modulation of Electron Transfer in Alkyne-Protected Ag ₁₄ Nanoclusters

  • Rakendu Vinod1,2
  • Meghna Ghosh1,2
  • Xiaolin Liu3,4
  • Rajannya Adhikary1,2
  • Glory James1,2
  • Nida Nahan Eyyakkandy1,2
  • Subhrajyoti Bhandary1,2
  • Pradip Kumar Mondal5
  • Seiji Yamazoe6
  • Soichi Kikkawa6
  • De-en Jiang3,4
  • Sukhendu Mandal1,2
6 affiliations
  1. 1School of Chemistry
  2. 2Indian Institute of Science Education and Research Thiruvananthapuram
  3. 3Department of Chemical and Biomolecular Engineering
  4. 4Vanderbilt University
  5. 5Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, Basovizza, Italy-, 34149
  6. 6Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami Osawa, Tokyo, Japan, 192-0397
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Abstract

Single-atom doping at the cluster core is an effective strategy for modulating the molecule-like properties of monolayer-protected nanoclusters. In this study, we systematically synthesized a pair of alkyne-protected silver nanoclusters, in which the central template anion of one nanocluster was replaced by a copper atom in the other. Incorporation of copper significantly quenched the photoluminescence of the nanocluster while enhancing its electron-transfer capability through modification of the electronic structure. Theoretical calculations further revealed that the central copper atom contributes directly to the frontier molecular orbitals. This work represents an important step toward the development of atomically precise nanochemistry, demonstrating how precise structural tailoring of alkyne-protected silver nanoclusters can be used to regulate their functional properties.

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Cite

BibTeXRIS
BibTeX
@misc{vinod2026central,
  title = {{Central Atom Driven Modulation of Electron Transfer in Alkyne-Protected Ag ₁₄ Nanoclusters}},
  author = {Rakendu Vinod and Meghna Ghosh and Xiaolin Liu and Rajannya Adhikary and Glory James and Nida Nahan Eyyakkandy and Subhrajyoti Bhandary and Pradip Kumar Mondal and Seiji Yamazoe and Soichi Kikkawa and De-en Jiang and Sukhendu Mandal},
  howpublished = {ChemRxiv},
  year = {2026},
  month = oct,
  doi = {10.26434/chemrxiv.15010575/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010575/v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Central Atom Driven Modulation of Electron Transfer in Alkyne-Protected Ag ₁₄ Nanoclusters
AU  - Rakendu Vinod
AU  - Meghna Ghosh
AU  - Xiaolin Liu
AU  - Rajannya Adhikary
AU  - Glory James
AU  - Nida Nahan Eyyakkandy
AU  - Subhrajyoti Bhandary
AU  - Pradip Kumar Mondal
AU  - Seiji Yamazoe
AU  - Soichi Kikkawa
AU  - De-en Jiang
AU  - Sukhendu Mandal
PY  - 2026
DA  - 2026/10/16
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15010575/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010575/v1
AB  - Single-atom doping at the cluster core is an effective strategy for modulating the molecule-like properties of monolayer-protected nanoclusters. In this study, we systematically synthesized a pair of alkyne-protected silver nanoclusters, in which the central template anion of one nanocluster was replaced by a copper atom in the other. Incorporation of copper significantly quenched the photoluminescence of the nanocluster while enhancing its electron-transfer capability through modification of the electronic structure. Theoretical calculations further revealed that the central copper atom contributes directly to the frontier molecular orbitals. This work represents an important step toward the development of atomically precise nanochemistry, demonstrating how precise structural tailoring of alkyne-protected silver nanoclusters can be used to regulate their functional properties.
ER  -