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Article Abstract
Exploration of sensitive and selective fluorescence sensors towards toxic metal species is of great importance to solve metal pollution issues. In this work, a three-dimensional (3D) strontium coordination polymer of Sr(tcbpe) (Htcbpe = 1,1,2,2-tetrakis(4-(4-carboxy-phenyl)phenyl)ethene) has been synthesized and developed as a fluorescent sensor to Fe ions. Sr(tcbpe) shows a mechanochromic fluorescence with emission shifting from blue of the pristine to green after being ground. Notably, based on a fluorescence quenching mechanism, Sr(tcbpe) displays a sensitive and selective fluorescent sensing behavior to Fe ions with a detection limit of 0.14 mM. Moreover, Sr(tcbpe) exhibits high tolerance to water in a wide pH range (pH = 3-13), demonstrating that Sr(tcbpe) is a potential fluorescent sensor of Fe in water.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866177 | PMC |
| http://dx.doi.org/10.3390/ma16020577 | DOI Listing |
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