Articles producció científica> Química Analítica i Química Orgànica

Synthesis of sensitive novel dual Signaling pyridopyrimidine-based fluorescent "turn off" chemosensors for anions determination

  • Identification data

    Identifier: imarina:6010694
    Authors:
    Ashraf, AbidaKhizar, MisbahIslam, MuhammadHameed, AbdulMoin, Syed TariqueYaqub, MuhammadRauf, WaqarNaseer, Muhammad MoazzamAhsan, Muhammad TayyebShafiq, ZahidHussain, JavidAl-Harrasi, AhmedBoque, RicardJabeen, FarahMabood, Fazal
    Abstract:
    The synthesis of 2-hydroxybenzoyl pyridopyrimidines (M1-M4) has been carried out with 3-formyl chrome derivatives and 6-amino-1-methyluracil to employ them as anion chemosensors. Pyridopyrimidine-based compounds were studied as colorimetric and fluorescent receptors for anion sensing. The observations with naked eye and the data obtained by UV-visible, fluorescence and H-1 NMR spectroscopy demonstrated selectivity for fluoride, acetate and cyanides among the pool of different anions. However, the spectral data involving fluoride anion showed particularly sharp and strong interactions. In sensing process, the binding of pyridopyrimidine amino (NH) and hydroxyl groups (OH) via hydrogen bonding F center dot center dot center dot center dot H-N/-O induced the colorimetric and turn off fluorescent response. The binding mode of action was further studied by H-1 NMR titrations that supported gradual deprotonation mechanism. The fluoride ion detection limit was in the range of 3.51 x 10(-8) M to 1.77 x 10(-6) M for probes M1-M4 and were lower than the maximum permissible concentration of F- ion in drinking water (5.3 x 10(-3) M) set by World Health Organization (WHO) that was found to be influenced by the nature of aromatic substituents. Theoretical study of receptor interactions with fluoride anion via O-H and N-H groups was also carried out at the quantum mechanical level. (C) 2019 Elsevier Ltd. All rights reserved.
  • Others:

    Author, as appears in the article.: Ashraf, Abida; Khizar, Misbah; Islam, Muhammad; Hameed, Abdul; Moin, Syed Tarique; Yaqub, Muhammad; Rauf, Waqar; Naseer, Muhammad Moazzam; Ahsan, Muhammad Tayyeb; Shafiq, Zahid; Hussain, Javid; Al-Harrasi, Ahmed; Boque, Ricard; Jabeen, Farah; Mabood, Fazal;
    Department: Química Analítica i Química Orgànica
    URV's Author/s: Boqué Martí, Ricard
    Keywords: “turn off” fluorescent Turn off fluorescent Substituent effect Sensor Selective detection Recognition Receptor Pyridopyrimidines Naked-eye detection Molecule Fluoride-ion Fluoride ion sensors Colorimetric Chemistry Binding Ability
    Abstract: The synthesis of 2-hydroxybenzoyl pyridopyrimidines (M1-M4) has been carried out with 3-formyl chrome derivatives and 6-amino-1-methyluracil to employ them as anion chemosensors. Pyridopyrimidine-based compounds were studied as colorimetric and fluorescent receptors for anion sensing. The observations with naked eye and the data obtained by UV-visible, fluorescence and H-1 NMR spectroscopy demonstrated selectivity for fluoride, acetate and cyanides among the pool of different anions. However, the spectral data involving fluoride anion showed particularly sharp and strong interactions. In sensing process, the binding of pyridopyrimidine amino (NH) and hydroxyl groups (OH) via hydrogen bonding F center dot center dot center dot center dot H-N/-O induced the colorimetric and turn off fluorescent response. The binding mode of action was further studied by H-1 NMR titrations that supported gradual deprotonation mechanism. The fluoride ion detection limit was in the range of 3.51 x 10(-8) M to 1.77 x 10(-6) M for probes M1-M4 and were lower than the maximum permissible concentration of F- ion in drinking water (5.3 x 10(-3) M) set by World Health Organization (WHO) that was found to be influenced by the nature of aromatic substituents. Theoretical study of receptor interactions with fluoride anion via O-H and N-H groups was also carried out at the quantum mechanical level. (C) 2019 Elsevier Ltd. All rights reserved.
    Thematic Areas: Statistics and probability Química Psicología Medicina iii Materiais Interdisciplinar Instruments & instrumentation Instrumentation Geociências Farmacia Engineering, multidisciplinary Engenharias iv Engenharias iii Engenharias ii Electrical and electronic engineering Education Condensed matter physics Ciências biológicas ii Ciências ambientais Ciência da computação Biotecnología Astronomia / física Applied mathematics Administração pública e de empresas, ciências contábeis e turismo
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 02632241
    Author's mail: ricard.boque@urv.cat
    Author identifier: 0000-0001-7311-4824
    Record's date: 2023-02-22
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0263224119311315
    Papper original source: Measurement. 151 (107267):
    APA: Ashraf, Abida; Khizar, Misbah; Islam, Muhammad; Hameed, Abdul; Moin, Syed Tarique; Yaqub, Muhammad; Rauf, Waqar; Naseer, Muhammad Moazzam; Ahsan, Muha (2020). Synthesis of sensitive novel dual Signaling pyridopyrimidine-based fluorescent "turn off" chemosensors for anions determination. Measurement, 151(107267), -. DOI: 10.1016/j.measurement.2019.107267
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1016/j.measurement.2019.107267
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2020
    Publication Type: Journal Publications
  • Keywords:

    Applied Mathematics,Condensed Matter Physics,Education,Electrical and Electronic Engineering,Engineering, Multidisciplinary,Instrumentation,Instruments & Instrumentation,Statistics and Probability
    “turn off” fluorescent
    Turn off fluorescent
    Substituent effect
    Sensor
    Selective detection
    Recognition
    Receptor
    Pyridopyrimidines
    Naked-eye detection
    Molecule
    Fluoride-ion
    Fluoride ion sensors
    Colorimetric
    Chemistry
    Binding
    Ability
    Statistics and probability
    Química
    Psicología
    Medicina iii
    Materiais
    Interdisciplinar
    Instruments & instrumentation
    Instrumentation
    Geociências
    Farmacia
    Engineering, multidisciplinary
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Electrical and electronic engineering
    Education
    Condensed matter physics
    Ciências biológicas ii
    Ciências ambientais
    Ciência da computação
    Biotecnología
    Astronomia / física
    Applied mathematics
    Administração pública e de empresas, ciências contábeis e turismo
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