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Four phenanthroimidazole ferrocene derivatives (2a-2d) were designed, synthesized and characterized by H NMR, C NMR and high-resolution mass spectroscopy (HRMS). Recognition of 12 anions by 2a-2d was investigated by UV-Vis absorption analysis, showing that 2b and 2d sensed BO selectively among the tested anions with an obvious color change observed. H NMR titrations and theoretical calculations demonstrated that 2b binds BO through O⋯H hydrogen bonding and O⋯B interactions between the nitro moiety and the BO anion.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077699 | PMC |
| http://dx.doi.org/10.1039/c7ra12700f | DOI Listing |
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