salicylates and 4-4-difluoro-4-bora-3a-4a-diaza-s-indacene

salicylates has been researched along with 4-4-difluoro-4-bora-3a-4a-diaza-s-indacene* in 1 studies

Other Studies

1 other study(ies) available for salicylates and 4-4-difluoro-4-bora-3a-4a-diaza-s-indacene

ArticleYear
Novel reversible Zn2+-assisted biological phosphate "turn-on" probing through stable aryl-hydrazone salicylaldimine conjugation that attenuates ligand hydrolysis.
    Inorganic chemistry, 2013, Sep-03, Volume: 52, Issue:17

    A novel reversible zinc(II) chemosensing ensemble (2·Zn(2+)) allows for selective "turn-on" fluorescence sensing of ATP and PPi in aqueous media (detection limits: 2.4 and 1.0 μM, respectively) giving selective binding patterns: ATP ∼ PPi > ADP ≫ AMP > monophosphates ≈ remaining ions tested. The conjugated hydrazone [C═N-NH-R] resists hydrolysis considerably, compared to the imine [C═N-CH2-R, pyridin-2-ylmethanamine] functionality, and generalizes to other chemosensing efforts. Prerequisite Zn(2+)·[O(phenol)N(imine)N(pyr)] binding is selective, as determined by UV-vis and NMR spectroscopy; ATP or PPi extracts Zn(2+) to regenerate the ligand-fluorophore conjugate (PPi: turn-on, 512 nm; detection limit, 1.0 μM). Crystallography, 2-D NMR spectroscopy, and DFT determinations (B3LYP/631g*) support the nature of compound 2. 2-Hydrazinyl-pyridine-salicylaldehyde conjugation is unknown, as such; a paucity of chemosensing-Zn(2+) binding reports underscores the novelty of this modifiable dual cation/anion detection platform. A combined theoretical and experimental approach reported here allows us to determine both the potential uniqueness as well as drawbacks of this novel conjugation.

    Topics: Adenosine Triphosphate; Boron Compounds; Fluorescent Dyes; Hydrazones; Hydrolysis; Ligands; Models, Molecular; Polyphosphates; Salicylates; Spectrometry, Fluorescence; Zinc

2013