Premium
A Photoluminescent Ag 10 Cu 6 Cluster Stablized by a PNNP Ligand and Phenylacetylides Selectively and Reversibly Senses Ammonia in Air and Water
Author(s) -
Wang Yuwei,
Yan JiaJun,
Hu Shengnan,
James Young David,
Li HongXi,
Ren ZhiGang
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100783
Subject(s) - bimetallic strip , ammonia , photoluminescence , ligand (biochemistry) , phosphorescence , cluster (spacecraft) , bifunctional , chemistry , luminescence , analytical chemistry (journal) , photochemistry , nuclear chemistry , fluorescence , materials science , catalysis , organic chemistry , optoelectronics , physics , biochemistry , receptor , quantum mechanics , computer science , programming language
A photoluminescent bimetallic cluster [Ag 10 Cu 6 (bdppthi) 2 (C≡CPh) 12 (MeOH) 2 (H 2 O)](ClO 4 ) 4 ( 1 , bdppthi= N,N’ ‐bis(diphenylphosphanylmethyl)‐tetrahydroimidazole} was synthesized from the PNNP type ligand bdppthi generated in‐situ. Upon excitation at 365 nm, 1 exhibited strong phosphorescent emission at 630 nm, which was selectively quenched by NH 3 in air or water. The sensing of NH 3 was rapid and recoverable, with detection limits of 53 ppm (v/v) in N 2 and 21 μmol/L (0.36 ppm, w/w) for NH 3 ⋅ H 2 O in water. Cluster 1 could potentially serve as a bifunctional chemical sensor for the efficient detection of ammonia in waste‐gas and waste‐water.