
Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 442 - 442
Published: March 14, 2025
Stimulus-responsive inorganic–organic hybrid metal halides (IOMHs) have shown great potential in applications such as sensing and anti-counterfeiting. IOMHs can undergo a variety of structural changes when triggered by humidity; however, relevant reports dimensionality change from zero dimension (0D) to one (1D) are rare. This study investigates the synthesis, structure, properties two antimony-based IOMHs, namely 0D-(Mp)3SbCl6·MeCN 1D-(Mp)2SbCl5 (Mp = protonated morpholine; MeCN acetonitrile). Photophysical characterizations show that (Mp)3SbCl6·MeCN, being excited at 375 nm, exhibits typical self-trapped exciton triplet state broad-band emission, with peak 620 nm quantum yield high 75.06%. Under humid conditions, 0D structure (Mp)3SbCl6·MeCN undergoes phase transition, leading 1D (Mp)2SbCl5. transition is accompanied fluorescence quenching. X-ray powder diffraction, Raman spectroscopy, thermogravimetric analysis confirm process its reversibility. Based on contrast before after demonstrated an ideal material for water sensing, capable detecting trace amounts tetrahydrofuran detection limit 0.2% v/v.
Language: Английский