Symmetry Breaking Drives Twisted Prismatic Evolution in Atomically Precise Copper Nanoclusters
4 affiliations
- 1Indian Institute of Science Education and Research Thiruvananthapuram , , , ,
- 2Indian Institute of Technology Guwahati , , , ,
- 3Tokyo Metropolitan University , , 1-1 minami Osawa , , ,
- 4Elettra-Sincrotrone Trieste , S.S. 14 Km 163.5 in Area Science Park, Basovizza , , ,
Abstract
The stability of the copper nanocluster (Cu NC) has always been a concern owing to its low half-cell reduction potential. It is well documented that anion templates are known to tune the structure and impart stability to the nanocluster. Here, using a simple reduction strategy, we have obtained a dihalide-templated Cu NC for the first time. The Cu NC, namely, [Cu23(μ3-Cl)2(SPh-CF3)18(PPh3)6(CF3COO)3], features a unique double triangular prismatic structure. The structure contained a basic unit with the formula Cu9(μ3-Cl)2 forming an inner triangular prism, which is further wrapped by a second triangular prism with the formula Cu12(SPh-CF3)18(PPh3)6(CF3COO)3, forming a unique twisted triangular double prismatic geometry. Further, we have proposed a plausible growth mechanism that helps us decipher the evolution of the nanocluster, and here we observed a peculiar “twisted concentric growth” of the two prisms, which occurs due to the radial dimerization of the Cu11 base prism to form the dimeric Cu23 nanocluster. The unique growth pattern and structure influence the electronic states of the nanocluster, as evidenced by experimental and theoretical studies, thereby imparting good photoresponse properties to the material. The new insights into this novel dihalide-templated twisted double prismatic Cu NC may pave the way to understanding the unique structural growth and developing photonic materials.
Versions
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BibTeX
@article{james2026symmetry,
title = {{Symmetry Breaking Drives Twisted Prismatic Evolution in Atomically Precise Copper Nanoclusters}},
author = {Glory James and Dipanjana Mondal and Nisha Job and Sisira S. Shaiju and Seiji Yamazoe and Soichi Kikkawa and Kalishankar Bhattacharyya and Vinayak Kamble and Pradip Kumar Mondal and Sukhendu Mandal},
journal = {JACS Au},
year = {2026},
month = oct,
doi = {10.1021/jacsau.6c00968},
url = {https://pubs.acs.org/jaaucr/article/doi/10.1021/jacsau.6c00968/5456474/Symmetry-Breaking-Drives-Twisted-Prismatic},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Symmetry Breaking Drives Twisted Prismatic Evolution in Atomically Precise Copper Nanoclusters
AU - Glory James
AU - Dipanjana Mondal
AU - Nisha Job
AU - Sisira S. Shaiju
AU - Seiji Yamazoe
AU - Soichi Kikkawa
AU - Kalishankar Bhattacharyya
AU - Vinayak Kamble
AU - Pradip Kumar Mondal
AU - Sukhendu Mandal
PY - 2026
DA - 2026/10/22
JO - JACS Au
DO - 10.1021/jacsau.6c00968
UR - https://pubs.acs.org/jaaucr/article/doi/10.1021/jacsau.6c00968/5456474/Symmetry-Breaking-Drives-Twisted-Prismatic
AB - The stability of the copper nanocluster (Cu NC) has always been a concern owing to its low half-cell reduction potential. It is well documented that anion templates are known to tune the structure and impart stability to the nanocluster. Here, using a simple reduction strategy, we have obtained a dihalide-templated Cu NC for the first time. The Cu NC, namely, [Cu23(μ3-Cl)2(SPh-CF3)18(PPh3)6(CF3COO)3], features a unique double triangular prismatic structure. The structure contained a basic unit with the formula Cu9(μ3-Cl)2 forming an inner triangular prism, which is further wrapped by a second triangular prism with the formula Cu12(SPh-CF3)18(PPh3)6(CF3COO)3, forming a unique twisted triangular double prismatic geometry. Further, we have proposed a plausible growth mechanism that helps us decipher the evolution of the nanocluster, and here we observed a peculiar “twisted concentric growth” of the two prisms, which occurs due to the radial dimerization of the Cu11 base prism to form the dimeric Cu23 nanocluster. The unique growth pattern and structure influence the electronic states of the nanocluster, as evidenced by experimental and theoretical studies, thereby imparting good photoresponse properties to the material. The new insights into this novel dihalide-templated twisted double prismatic Cu NC may pave the way to understanding the unique structural growth and developing photonic materials.
SN - 2691-3704
ER -