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Threefold Collaborative Stabilization of Ag 14 ‐Nanorods by Hydrophobic Ti 16 ‐Oxo Clusters and Alkynes: Designable Assembly and Solid‐State Optical‐Limiting Application
Author(s) -
Fan Xi,
Yuan Furong,
Li Dejing,
Chen Shuai,
Cheng Zhibin,
Zhang Zhangjing,
Xiang Shengchang,
Zang ShuangQuan,
Zhang Jian,
Zhang Lei
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202101664
Subject(s) - nanoclusters , nanoring , alkyne , materials science , nanorod , cluster (spacecraft) , acetonitrile , crystallography , solid state , nanotechnology , chemistry , organic chemistry , computer science , programming language , catalysis
Ag nanoclusters have received increasing attention due to their atomically precise and diverse structures and intriguing optical properties. Nevertheless, the inherent instability of Ag nanoclusters has seriously hindered their practical application. In this work, for the first time, Ag clusters are collaboratively protected by hydrophobic Ti‐oxo clusters and alkyne ligands. Initially, a pyramidal Ag 5 cluster terminated with t BuC≡C − and CH 3 CN was inserted into the cavity of a Ti 8 ‐oxo nanoring to form Ag 5 @Ti 8 . To overcome the instability of acetonitrile‐terminated silver site, such two Ag 5 @Ti 8 clusters could sandwich an Ag 4 unit to form Ag 14 ‐nanorod@Ti 16 ‐oxo‐nanoring (Ag 14 @Ti 16 ), which is peripherally protected by fluorophenyl groups and alkyne caps. This threefold protected (hydrophobic fluorinated organic layer, Ti‐O shell, and terminal alkyne ligands) Ag 14 @Ti 16 exhibits superhydrophobicity and excellent ambient stability, endowing it with solid‐state optical limiting characteristics.