A novel dihydro phenylquinazolinone-based two-in-one colourimetric chemosensor for nickel(<scp>ii</scp>), copper(<scp>ii</scp>) and its copper complex for the fluorescent colourimetric nanomolar detection of the cyanide anion

Sahu, Meman; Manna, Amit Kumar; Chowdhury, Shubhamoy; Patra, Goutam Kumar

doi:10.1039/d0ra09023a

Cited by 37 publications

(16 citation statements)

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“…DBSS -Zn(II) exhibited a selective but weak response toward HPO 4 2– (Figure B), whereas DBSS -Pb(II) and DBSS -Hg(II) did not show a clear selectivity for any anion (Figure C,D). The mechanism of CN – detection by DBSS -Cu(II) may involve the metal complexing ligand displacement as described by precedent works. , To prove this assumption, we acquired the UV spectra of the DBSS before and after the subsequent addition of Cu(II) and CN – ions (Figure S4). In comparison to the spectrum of pure DBSS , the spectrum of DBSS -Cu(II) was red-shifted and its baseline was elevated.…”

Section: Resultsmentioning

confidence: 74%

“…The mechanism of CN − detection by DBSS-Cu(II) may involve the metal complexing ligand displacement as described by precedent works. 63,64 To prove this assumption, we acquired the UV spectra of the DBSS before and after the subsequent addition of Cu(II) and CN − ions (Figure S4). In comparison to the spectrum of pure DBSS, the spectrum of DBSS-Cu(II)…”

Section: Methodsmentioning

confidence: 99%

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Fluorescent Sensor for Copper(II) and Cyanide Ions via the Complexation–Decomplexation Mechanism with Di(bissulfonamido)spirobifluorene

et al. 2021

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A novel spirobifluorene derivative bearing two bissulfonamido groups is successfully synthesized by Sonogashira coupling. This compound exhibits a strong fluorescence quenching by Cu(II) ion in a 50% mixture between acetonitrile and 20 mM pH 7.0 N -(2-hydroxyethyl)piperazine- N ′-ethanesulfonic acid (HEPES) buffer with a detection limit of 98.2 nM. However, this sensor also shows ratiometric signal shifts from blue to yellow in the presence of Zn(II), Pb(II), and Hg(II) ions. The static quenching mechanism is verified by the signal reversibility using ethylenediaminetetraacetic acid (EDTA) and the Stern–Volmer plots at varying temperatures. The Cu(II)–spirobifluorene complex shows a highly selective fluorescence enhancement upon the addition of CN – ion with the detection limit of 390 nM. The application of this complex for quantitative analysis of spiked CN – ion in real water samples resulted in good recoveries.

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Section: Resultsmentioning

confidence: 74%

Section: Methodsmentioning

confidence: 99%

Fluorescent Sensor for Copper(II) and Cyanide Ions via the Complexation–Decomplexation Mechanism with Di(bissulfonamido)spirobifluorene

et al. 2021

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“…The contours of HOMO and LUMO of complex I clearly show chelation of L with Ag(I). The origin of the fluorescence properties of I probably because of the CHEF (chelation-enhanced fluorescence) processes [48].…”

Section: Photophysical Studiesmentioning

confidence: 99%

Synthesis, crystal structure, and theoretical studies of a macrocyclic silver(I) complex of imino-pyridyl Schiff base ligand

et al. 2021

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The synthesis and characterization of an imino-pyridyl ligand N,N'-(butane-1,4-diyl)bis(1-(pyridin-2-yl)methanimine) (L) and its Ag(I)ClO4 complex (I) by various spectroscopic techniques and elemental analyses is presented in this study. X-ray single crystal structure of complex I revealed that in complex I, each Ag(I) ion is tetra coordinated with two pyridine N-atoms and two imine N-atoms of the ligand L, forming a macrocyclic dimeric Ag(I) grid. In the macrocyclic dimer complex I, Ag-Ag separation along the chain is 5.318 Å. The Ag-Npy average distance is 2.396 Å and that of the Ag-Nim is 2.257 Å. The macrocyclic dimer complex I is supramolecularly arranged by π-stacking interactions. Computational, Hirshfeld surface analysis and photophysical studies on ligand L and complex I have also been performed. Crystal data for C32H36Ag2Cl2N8O8 (M =947.33 g/mol): Triclinic, space group P-1 (no. 2), a = 9.1714(12) Å, b = 10.4373(14) Å, c = 10.8297(14) Å, α = 112.317(3)°, β = 91.391(3)°, γ = 92.353(3)°, V = 957.3(2) Å3, Z = 1, T = 293.15 K, μ(MoKα) = 1.220 mm-1, Dcalc = 1.643 g/cm3, 10248 reflections measured (4.07° ≤ 2Θ ≤ 53.098°), 3966 unique (Rint = 0.0280, Rsigma = 0.0331) which were used in all calculations. The final R1 was 0.0722 (I > 2σ(I)) and wR2 was 0.2229 (all data).

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“…Nano mesoporous silica is a highly porous material with a high surface area, making it an ideal adsorbent for heavy metal ions. The large surface area of the mesoporous silica nanomaterial allows for many active sites for adsorption to occur 32‐36 . Additionally, the mesoporous structure of the silica allows for efficient diffusion of the heavy metal ions into the material, facilitating the adsorption process.…”

Section: Introductionmentioning

confidence: 99%

Chromoionophoric probe‐anchored mesoporous silica nanospheres for rapid and reliable naked‐eye detection of Ni(II) ions in petroleum products and removal from electroplating wastewater

Al‐bonayan

Alamrani

Ibarhiam

et al. 2023

J of Molecular Recognition

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This paper presents the expansion of an optical, chemical sensor that can rapidly and reliably detect, quantify, and remove Ni(II) ions in oil products and electroplating wastewater sources. The sensor is based on mesoporous silica nanospheres (MSNs) that have an extraordinary surface area, uniform surface morphology, and capacious porosity, making them an excellent substrate for the anchoring of the chromoionophoic probe,3′‐{(1E,1′ E)‐[(4‐chloro‐1,2 phenylene)bis (azaneylylidene)]‐bis(methaneylylidene)}bis(2‐hydroxybenzoic acid) (CPAMHP). The CPAMHP probe is highly selective and sensitive to Ni(II), enabling it to be used in naked‐eye colorimetric recognition of Ni(II) ions. The MSNs provide several accessible exhibited sites for uniform anchoring of CPAMHP probe molecules, making it a viable chemical sensor even with the use of naked‐eye sensing. The surface characters and structural analysis of the MSNs and CPAMHP sensor samples were examined using various techniques. The CPAMHP probe‐anchored MSNs exhibit a clear and vivid color shift from pale yellow to green upon exposure to various concentrations of Ni(II) ions, with a reaction time down to approximately 1 minute. Furthermore, the MSNs can serve as a base to retrieve extremely trace amounts of Ni(II) ions, making the CPAMHP sensor a dual‐functional device. The calculated limit of recognition for Ni(II) ions using the fabricated CPAMHP sensor samples is 0.318 ppb (5.43 × 10−9 M). The results suggest that the proposed sensor is a promising tool for the sensitive and reliable detection of Ni(II) ions in petroleum products and for removing Ni(II) ions in electroplating wastewater; the data indicate an excellent removal of Ni (II) up to 96.8%, highlighting the high accuracy and precision of our CPAMHP sensor.

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A novel dihydro phenylquinazolinone-based two-in-one colourimetric chemosensor for nickel(ii), copper(ii) and its copper complex for the fluorescent colourimetric nanomolar detection of the cyanide anion

Abstract: A novel colorimetric chemosensor L has been developed for the detection of Ni2+ and Cu2+ ions. The obtained L–Cu2+ complex can be used as a new cascade fluorescent-colorimetric sensor for the nanomolar detection of CN− ions. This chemosensor has practical application.

Cited by 37 publications

References 70 publications

Fluorescent Sensor for Copper(II) and Cyanide Ions via the Complexation–Decomplexation Mechanism with Di(bissulfonamido)spirobifluorene

Fluorescent Sensor for Copper(II) and Cyanide Ions via the Complexation–Decomplexation Mechanism with Di(bissulfonamido)spirobifluorene

Synthesis, crystal structure, and theoretical studies of a macrocyclic silver(I) complex of imino-pyridyl Schiff base ligand

Chromoionophoric probe‐anchored mesoporous silica nanospheres for rapid and reliable naked‐eye detection of Ni(II) ions in petroleum products and removal from electroplating wastewater

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