@article{Luo2021, 
author = {Xi-Ming Luo and Chun-Hua Gong and Xi-Yan Dong and Lei Zhang and Shuang-Quan Zang},
title = {Evolution of all-carboxylate-protected superatomic Ag clusters confined in Ti-organic cages},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {7},
pages = {2309-2313},
keywords = {superatomic silver cluster, atomic precision, titanium organic cage, stability},
url = {https://www.sciopen.com/article/10.1007/s12274-020-3227-5},
doi = {10.1007/s12274-020-3227-5},
abstract = {In this study, the size of the titanium organic cage was controlled to achieve the restricted growth from a single Ag(I) atom (Ag@Ti5) to rare all-carboxylate-protected superatomic Ag cluster (Ag6@Ti6). The classical octahedral Ag64+ cluster with two delocalized electrons (2e) has been encapsulated in a Ti6 organic cage, which shows high stability in air and dimethyformamide (DMF). Furthermore, larger 2e nested double-tetrahedra Ag clusters (Ag86+ and Ag97+) protected using a tetrahedral hollow metalloligand framework (Ag8@Ti4 and Ag9@Ti4) were obtained. Electrospray ionization mass spectrometry (ESI-MS) and density functional theory (DFT) calculations confirmed that there are two delocalized electrons on these small Ag clusters. This study provides a new form of protection for superatomic Ag clusters and provides a feasible strategy for the development of stable Ag clusters.}
}