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Luminescent metal–organic frameworks with a 2-(4-pyridyl)-terephthalic acid ligand for detection of acetone.
- Source :
- New Journal of Chemistry; 3/28/2019, Vol. 43 Issue 12, p4800-4807, 8p
- Publication Year :
- 2019
-
Abstract
- Three metal–organic frameworks (MOFs), [Zn(pta)(H<subscript>2</subscript>O)]<subscript>n</subscript> (1) {[Zn(pta)]·H<subscript>2</subscript>O}<subscript>n</subscript> (2) and {[Cd(pta)]·H<subscript>2</subscript>O)}<subscript>n</subscript> (3) [H<subscript>2</subscript>pta = 2-(4-pyridyl)-terephthalic acid], were isolated by hydrothermal synthesis. Single-crystal X-ray analysis reveals that compound 1 shows a 2D layer-like network, while compounds 2 and 3 feature different 3D frameworks with Schläfli symbols of {4^2.6.8^3} and {4^6.6^4} respectively, in which the deprotonated pta<superscript>2−</superscript> ligands are indicative of diverse coordination modes. The thermostability, water stability and luminescent properties of 1–3 were investigated in the solid state at room temperature. It is noteworthy that 3 shows high selectivity for the detection of acetone in different solvents via a fluorescence quenching mechanism. By virtue of its excellent detection efficiency, applicability in water and reusability, compound 3 can be a promising fluorescent material for practical acetone sensing. [ABSTRACT FROM AUTHOR]
- Subjects :
- PHTHALIC acid
ACETONE
METAL-organic frameworks
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 43
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 135407133
- Full Text :
- https://doi.org/10.1039/c9nj00021f