Switchable Fluorescence of a Mechanical Stimulus-Responsive Au-P-S Complex

Autor:	Jieqiong Huang, Yuanyuan Hu, Wendi Xu, Wei Yang, Chengrong Lu, David James Young, Zhi-Gang Ren
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	Ag-P-S complex stimuli-responsive material switchable luminescence photoluminescent material Organic chemistry QD241-441
Zdroj:	Molecules, Vol 29, Iss 23, p 5736 (2024)
Druh dokumentu:	article
ISSN:	1420-3049 78681936
DOI:	10.3390/molecules29235736
Popis:	The reaction of [(3-bdppmapy)(AuCl)2] with NaHmna (3-bdppmapy = N,N’-bis-(diphenylphosphanylmethyl-3-aminopytidine, H2mna = 2-mercaptonicotinic acid)) resulted in a tetranuclear Au-P-S complex [(3-bdppmapy)2(AuHmna)2(AuCl)2] (1) which emitted bright yellow fluorescence at 542 nm under 377 nm excitation (QY = 5.3%, τ = 0.83 ns). Upon grinding, the emission intensity of 1 significantly and rapidly decreased, but could be recovered by exposure to CH2Cl2 vapor. This switchable fluorescence is attributed to the breaking and reforming of intermolecular hydrogen bonds with concomitant collapse and the restoration of the crystalline phase, which is not caused by static pressure or increased temperature.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7f21aeed8daa4ed78681936b35c1532c Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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