These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Synthesis and characterization of bis[N'-(4-carboxybenzylidene)]-pyridine-2,6-dicarbohydrazide: colorimetric and fluorometric modulation in presence of F- ions.
    Author: Sinha P, Srivastava AK, Mishra L.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2013 Dec; 116():286-94. PubMed ID: 23954544.
    Abstract:
    A novel organic compound bis[N'-(4-carboxybenzylidene)]-pyridine-2,6-dicarbohydrazide (L) was synthesized and characterized using spectroscopic and X-ray diffraction techniques. Tetrabutyl ammonium halides [(Bu)4N(+)X(-)] X = F, Cl, Br and I were allowed to react separately with a solution of L in DMSO (1 × 10(-5)M). The solution of L turned to shining yellow colour in the presence of F(-) ion only. The binding properties have been studied using absorption, emission and (1)H NMR titrations. Theoretical studies on compound L and compound L+X(-) (X = F, Cl and Br) in DMSO medium were carried out using density functional theory (DFT) at the B3LYP/6-31 G(d,p)/6-31 G+(d,p) level. The theoretical calculations agreed to the experimental results.
    [Abstract] [Full Text] [Related] [New Search]