2,6-Pyridinedicarbohydrazide-Salicylal hydrazone-base derivative with High detection limit and binding Constant for emissive ion chemosensing in aqueous solution

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F20%3A00524900" target="_blank" >RIV/61388971:_____/20:00524900 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1010603019317137?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1010603019317137?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jphotochem.2019.112344" target="_blank" >10.1016/j.jphotochem.2019.112344</a>

Result language
angličtina
Original language name
2,6-Pyridinedicarbohydrazide-Salicylal hydrazone-base derivative with High detection limit and binding Constant for emissive ion chemosensing in aqueous solution
Original language description
A new tridentate luminescent molecule, N-2,N-6-bis(salicylidene)pyridine-2,6-dicarbohydrazide (BSPDH), was introduced and facilely eco-synthesized with high yield. It was then characterized through Fourier transform infrared, Hydrogen-1 nuclear magnetic resonance, Carbon-13 nuclear magnetic resonance, mass and photoluminescence spectroscopy, X-Ray Diffraction and Ultraviolet-visible absorption methods. BSPDH showed an enhanced aggregation-induced emission as well as highly fast-response ´turn-off´ selectivity and sensitivity behaviors towards Cu2+ ions in aqueous solutions at physiological pH. Density Functional Theory calculations confirmed the formation of strong BSPDH-Cu2+ complex with lower energy gap compared to BSPDH. Among PDH-base fluorescent sensors reported so far, BSPDH is the first tautomerization-base luminescence molecular chemo-sensor with the high detection limit of 3.11 x 10(-5) M and binding constant of 1.978 x 10(5) M-1 at the concentration of 10 mu M of BSPDH for detecting Cu2+ ions without any interference from other metal cations in the aqueous solution at the physiological pH.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10608 - Biochemistry and molecular biology

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)