Inorganic Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Апрель 2, 2025
Molecular-based afterglow materials have garnered significant attention due to their diverse applications. However, most studies focus on conventional luminophores, leaving nonconventional systems underexplored, particularly regarding the screening of new material subclasses and development applications such as sensing. Herein we report successful preparation two two-dimensional ZnSO4-based open-framework (OFMs)─(H2DABCO)[Zn3(μ3-OH)2(SO4)3]·H2O (1) (H2DABCO)[Zn(SO4)2] (2)─through self-assembly Zn2+/SO42- with nonaromatic triethylenediamine (DABCO). Both compounds exhibit distinct delayed emission characteristics lifetimes 259.10 ms 49.62 μs (2), respectively. Frontier orbital analysis reveals key role charge transfer between sulfate groups (H2DABCO)2+ cations in luminescence. Notably, 1 demonstrates exceptional performance an probe for selective detection n-propylamine n-butylamine vapors, achieving limits 32.99 47.18 ppm, The sensing mechanism involves a phase-transition process, luminescence change can be observed by naked eye. This work pioneers integration sulfate-based OFMs room-temperature phosphorescence properties, demonstrating potential probes industrial environmental monitoring.
Язык: Английский