Premium
Ultrafast Size Expansion and Turn‐On Luminescence of Atomically Precise Silver Clusters by Hydrogen Sulfide
Author(s) -
He WeiMiao,
Zhou Zhe,
Han Zhen,
Li Si,
Zhou Zhan,
Ma LuFang,
Zang ShuangQuan
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202100006
Subject(s) - luminescence , photoluminescence , electrospray ionization , cluster (spacecraft) , chemistry , silver sulfide , sulfide , mass spectrometry , hydrogen sulfide , analytical chemistry (journal) , detection limit , crystallography , photochemistry , inorganic chemistry , materials science , sulfur , optoelectronics , organic chemistry , chromatography , computer science , programming language
The formation of high‐nuclearity silver(I) clusters remains elusive and their potential applications are still underdeveloped. Herein, we firstly prepared a chain‐like thiolated Ag I complex {[Ag 18 (S t Bu) 10 (NO 3 ) 8 (CH 3 CN) 2 (H 2 O) 2 ] ⋅ [Ag 18 (S t Bu) 10 (NO 3 ) 8 (CH 3 CN) 6 ]} n (abbreviated as Ag 18 ) in which two similar Ag 18 clusters are assembled by NO 3 − anions. The solution containing Ag 18 reacted with hydrogen sulfide with controlled concentration, promptly producing another identifiable and bright red‐emitting high‐nuclearity silver(I) cluster, Ag 62 (S) 13 (S t Bu) 32 (NO 3 ) 4 (abbreviated as Ag 62 ). We tracked the transformation using time‐dependent electrospray ionization mass spectrometry (ESI‐MS), UV/Vis absorption and photoluminescence spectra. Based on this cluster transformation, we further developed an ultra‐sensitive turn‐on sensor detecting H 2 S gas with an ultrafast response time (30 s) at a low detection limit (0.13 ppm). This work opens a new way of understanding the growth of metal clusters and developing their luminescent sensing applications.