Two new Mn-LMOF based on an AIEgens ligand for selective detection of Al3+ and other ions in aqueous solution.

Two novel multifunctional chemical sensor Mn-LMOF, namely, [Mn 2 (TPPE)(ndc) 2 (H 2 O)] n (LMOF-1) and [Mn 2 (TPPE)(oba) 2 ] n (LMOF-2). LMOF-1 and LMOF-2 have high stability and strong luminescence properties in solutions. The sensing experiments testify that LMOF-1 can be used as a selectively sensor for Al3+, with the limit of detection is 1.83 × 10−5 M. And LMOF-1 and LMOF-2 can identify Fe3+, CrO 4 2− and Cr 2 O 7 2− ions in aqueous solution, and LMOF-1 has a higher Ksv for all three ions than LMOF-2. [Display omitted] Two novel multifunctional chemical sensor Mn-LMOF, namely, [Mn 2 (TPPE)(ndc) 2 (H 2 O)] n (LMOF-1) and [Mn 2 (TPPE)(oba) 2 ] n (LMOF-2) were solvothermally synthesized by introducing an AIE luminogens (AIEgens) ligand, 1,1,2,2-tetra[4-(pyridin-4-yl)phenyl]ethylene(TPPE), and analyzed by single crystal X-ray diffraction, thermogravimetric and powder X-ray diffraction and other methods. LMOF-1 and LMOF-2 have high stability and strong luminescence properties in solutions. The sensing experiments testify that LMOF-1 can be used as a selectively sensor for Al3+, with the limit of detection is 1.83 × 10−5 M. And LMOF-1 and LMOF-2 can identify Fe3+, CrO 4 2− and Cr 2 O 7 2− ions in aqueous solution, and LMOF-1 has a higher Ksv for all three ions than LMOF-2. [ABSTRACT FROM AUTHOR]

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