A robust 3D zinc(II)-organic framework for efficient dual detection of acetylacetone and Tb3+ ions
authors Fu, MM; Fu, LS; Cui, GH
nationality International
journal DALTON TRANSACTIONS
keywords METAL-ORGANIC FRAMEWORKS; COORDINATION POLYMERS; CRYSTAL-STRUCTURES; FUNCTIONAL LUMINESCENT; CONTRAST AGENTS; LANTHANIDE; MOF; SENSOR; DIVERSITY; COMPLEXES
abstract There has been broad attention to the recognition and detection of ions and organic small molecules due to their essential roles in environmental systems. However, dual-functional probes have seldom been developed for sensing organic constituents and lanthanide ions. A new 3D pillared Zn(II)-organic framework [Zn-3(L)(DCTP)(3)](n) (1) (L = 1,4-di(1H-benzo[d]imidazol-2-yl)butane and H2DCTP = 2,5-dichloroterephthalic acid) was hydrothermally synthesized and structurally characterized, and features a unique 3D 4,4,4,6-connected framework containing approximately 9.99 x 9.78 angstrom(2) cubic channels. 1 displays excellent thermal and pH stability and can act as a novel turn-on fluorescent probe for highly selectively sensitizing Tb3+ ions through an antenna effect. Furthermore, 1 is a dual-response fluorescent sensor for monitoring acetylacetone and Tb3+ ions with rapid response times (within 1 min), low limits of detection (LOD) (5.02 x 10(-6)/1.15 x 10(-8) M, separately) and great anti-interference ability and recyclability towards the analytes. The related sensing mechanisms for detecting analytes are also investigated in detail.
publisher ROYAL SOC CHEMISTRY
issn 1477-9226
isbn 1477-9234
year published 2021
volume 50
issue 29
beginning page 10180
ending page 10186
digital object identifier (doi) 10.1039/d1dt01112j
web of science category 7
subject category Chemistry, Inorganic & Nuclear
unique article identifier WOS:000670225200001
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journal impact factor 4.174
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