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- Title
An Ultrastable 155‐Nuclei Silver Nanocluster Protected by Thiacalix[4]arene and Cyclohexanethiol for Photothermal Conversion.
- Authors
Wang, Zhi; Alkan, Fahri; Aikens, Christine M.; Kurmoo, Mohamedally; Zhang, Zhen‐Yi; Song, Ke‐Peng; Tung, Chen‐Ho; Sun, Di
- Abstract
Thiacalix[4]arenes have emerged as a family of macrocyclic ligands to protect metal nanoparticles, but it remains a great challenge to solve the mystery of their structures at the atomic level, especially for those larger than 2 nm. Here, we report the largest known mixed‐valence silver nanocluster [Ag155(CyS)40(TC4A)5Cl2] (Ag155) protected by deprotonated cyclohexanethiol (CySH) and macrocyclic ligand p‐tert‐butylthiacalix[4]arene (H4TC4A). Its single‐crystal structure consists of a metallic core of four concentric shells, Ag13@Ag42@Ag30@Ag70, lined with a organic skin of 40CyS− and 5TC4A4− and 2Cl−. Ag155 manifests an unusual pseudo‐5‐fold symmetry dictated by the intrinsic metal atom packing and the regioselective distribution of mixed protective ligands. This work not only reveals a macrocyclic ligand effect on the formation of a large silver nanocluster, but also provides a new structural archetype for comprehensively perceiving their interface and metal kernel structures.
- Subjects
PHOTOTHERMAL conversion; METAL nanoparticles; ATOMIC structure; AROMATIC compounds; LIGANDS (Chemistry)
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 31, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202206742