Synthesis and Optical Properties of Unique Pt1Ag24 Nanoclusters with Mixed Exterior Motif Structures

Xinzhang Lin; Xuemei Fu; Yang Yang; Xiuqing Ren; Jie Tang; Chao Liu; Jiahui Huang

doi:10.1021/acs.inorgchem.1c00359

Synthesis and Optical Properties of Unique Pt₁Ag₂₄ Nanoclusters with Mixed Exterior Motif Structures

Inorg Chem. 2021 Jul 19;60(14):10167-10172. doi: 10.1021/acs.inorgchem.1c00359. Epub 2021 Jul 8.

Authors

Xinzhang Lin^{1

2}, Xuemei Fu^{1

2}, Yang Yang^{1

2}, Xiuqing Ren¹, Jie Tang^{1

2}, Chao Liu¹, Jiahui Huang¹

Affiliations

¹ Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
² University of Chinese Academy of Sciences, Beijing 100049, China.

PMID: 34236847
DOI: 10.1021/acs.inorgchem.1c00359

Abstract

The atomic arrangement of metal nanoclusters plays a significant role in the structure-property correlation. Herein, we present a novel Pt₁Ag₂₄(SR)₁₆(PPh₃)₃ nanocluster with a unique structure, different from two reported Pt₁Ag₂₄ nanoclusters. The nanocluster was prepared via one-pot synthesis and solvent extraction. It has a centered icosahedral Pt₁Ag₁₂ kernel and an open shell composed of three Ag₂(SR)₃(PPh₃) staple motifs and a unique trefoil-like Ag₆(SR)₇ motif. The three kinds of Pt₁Ag₂₄ nanoclusters have the same kernel but different shell configurations. The fine-tuning of structures is necessary and significant for the investigation of the relationship of structures and properties. The different UV-vis absorption spectra indicate that the optical properties of three Pt₁Ag₂₄ nanoclusters mainly depend on the exterior shell configuration and the metal-ligand interface. This work provides insights toward growth mechanism and the structure-property correlation of metal nanoclusters.