Selective colorimetric and “turn-on” fluorimetric detection of cyanide using an acylhydrazone sensor in aqueous media

Hu, Jing‐Han; Li, Jianbin; Qi, Jing

doi:10.1039/c5nj00089k

Cited by 66 publications

(32 citation statements)

References 38 publications

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“…The observed low frequency of ν OH with respect to the free hydroxyl group may be due to intramolecular hydrogen bondings between H of hydroxyl group and the oxime nitrogen . Complex 2 exhibits a stretching vibration band at 3442 cm −1 that belongs to the coordinated water molecules . The above fact is in agreement with the result determined by X‐ray diffraction.…”

Section: Ir Spectramentioning

confidence: 89%

Newly synthesized homomultinuclear Co (II) and Cu (II) bissalamo‐like complexes: Structural characterizations, Hirshfeld analyses, fluorescence and antibacterial properties

Pan

Zhang

et al. 2020

Applied Organom Chemis

101

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Rare homodinuclear Co (II) complex [Co2(L)NO3] (1) and helical centrosymmetric homotetranuclear Cu (II) complex [Cu4(L)2(H2O)2]·2ClO4 (2), have been synthesized by a newly explored bis (salamo)‐like tetraoxime ligand (H3L) with Co (NO3)2·6H2O and Cu (ClO4)2·6H2O, respectively, and characterized by elemental analyses, IR, UV–Vis spectroscopy and single crystal X‐ray crystallography. X‐ray crystallographic studies indicate that the two Co (II) atoms (Co1 and Co2) in complex 1 have different N2O4 and N2O3 coordination spheres, and distorted octahedral (Co1) and slightly distorted triangular bipyramidal (Co2) geometries, while Cu (II) atoms in complex 2 have also two different N2O4 (Cu1) and N2O3 (Cu2) coordination environments, and complex 2 forms a helical centrosymmetric molecule. In addition, supramolecular interactions, Hirshfeld surfaces analyses, antibacterial and fluorescence properties were also investigated in detail.

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Section: Ir Spectramentioning

confidence: 89%

Newly synthesized homomultinuclear Co (II) and Cu (II) bissalamo‐like complexes: Structural characterizations, Hirshfeld analyses, fluorescence and antibacterial properties

Pan

Zhang

et al. 2020

Applied Organom Chemis

101

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“…Over the past 20 years or so since the arrival of supramolecular chemistry, there have been great breakthroughs in the development of fluorescent chemosensors as tools to sense various environmentally and biologically significant metal ions . These fluorescent sensing tools possess the relative advantages of high sensitivity, specificity, simplicity of implementation and fast response time compared with other analysis methods . Copper, a key element central to many cellular functions, serves as a vital co‐factor as the the active component of a number of enzymes such as superoxide dismutase, cytochrome c oxidase and tyrosinase .…”

Section: Introductionmentioning

confidence: 99%

Sensitive and selective detection of Cu(II) ion: A new effective 1,8‐naphthalimide‐based fluorescence ‘turn off’ sensor

Huang

Han

et al. 2018

Luminescence

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The present study reports the development of a new 1,8-naphthalimide-based fluorescent sensor V for monitoring Cu(II) ions. The sensor exhibited pH independence over a wide pH range 2.52-9.58, and indicated its possible use for monitoring Cu(II) ions in a competitive pH medium. The sensor also showed high selectivity and sensitivity towards the Cu(II) ions over other competitive metal ions in DMSO-HEPES buffer (v/v, 1:1; pH 7.4) with a fluorescence 'turn off' mode of 79.79% observed. A Job plot indicated the formation of a 1:1 binding mode of the sensor with Cu(II) ions. The association constant and detection limit were 1.14 × 10 M and 4.67 × 10 M, respectively. The fluorescence spectrum of the sensor was quenched due to the powerful paramagnetic nature of the Cu(II) ions. Potential application of this sensor was also demonstrated when determining Cu(II) ion levels in two different water samples.

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“…266 and 324 nm were clearly observed. The two peaks can be attributed respectively to the π-π* transitions of the benzene ring and the oxime group [64,65]. When the concentration of the Cu II ion increased gradually, the absorption peaks had evidently changed to 271 nm.…”

Section: Crystal Structure Descriptionmentioning

confidence: 99%

Unprecedented Dinuclear CuII N,O-Donor Complex: Synthesis, Structural Characterization, Fluorescence Property, and Hirshfeld Analysis

Sun

Pan

et al. 2019

Crystals

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An unprecedented dinuclear Cu II complex, [Cu 2 (L 2 ) 2 ], derived from a salamo-like chelating ligand H 2 L 2 , was produced by the cleavage of a newly synthesized, half-salamo-like ligand HL 1 (2-[O-(1-ethyloxyamide)]oxime-3,5-dichloro-phenol). This was synthesized and characterized by elemental analyses, IR, UV-Vis and fluorescent spectra, single crystal X-ray diffraction analysis, and Hirshfeld surface analysis. X-ray crystallographic analysis indicated that the two Cu II (Cu1 and Cu2) ions bore different (N 2 O 3 and N 2 O 2 ) coordination environments, the penta-coordinated Cu1 ion possessed a slightly twisted tetragonal pyramid geometry with the τ value τ = 0.004, and the tetra-coordinated Cu2 ion showed a slightly twisted square planar geometry. Interestingly, one oxime oxygen atom participated in the coordination reported previously. Moreover, an infinite two-dimensional layered supramolecular network was formed. Compared with HL 1 , the Cu II complex possessed the characteristic of fluorescence quenching.Crystals 2019, 9, 607 2 of 15 complexes, the participation of oxime oxygen atoms of salamo-like ligands in coordination should be constantly emerging.In order to study the structures and properties of metal salamo-like complexes, we have designed and synthesized a new half-salamo-like ligand, HL 1 , and a Cu II complex [Cu 2 (L 2 ) 2 ]. The Cu II complex [Cu 2 (L 2 ) 2 ] was obtained by the reaction of the ligand HL 1 with Cu(OAc) 2 ·H 2 O and contained no acetate ion. This contrasts with the salamo-like complexes previously reported [52,53], in which an acetate ion often accompanied and coordinated with metal ions. The fluorescence property and Hirshfeld surface analysis of the Cu II complex were studied [54]. Experimental Materials and Instrumentation2-Hydroxy-3,5-dichlorobenzaldehyde of 99% purity was obtained from the Alfa Aesar. The other reagents and solvents used in the experiment were purchased from the Tianjin Chemical Reagent Factory at the analytical reagent level and used without further purification [55]. Elemental analyses of metal element (Cu) and non-metallic elements (C, H, and N) were measured by an atomic emission spectrometer (IRIS ER/S·WP-1 ICP) and automatic elemental detection analyzer (GmbH VariuoEL V3.00) from Berlin, Germany, respectively, melting points were measured by the use of a microscopic melting point apparatus made by the Beijing Taike Instrument Limited Company (Beijing, China) and was uncorrected, 1H NMR (nuclear magnetic resonance) spectra were measured by German Bruker AVANCE DRX-400/600 spectroscopy (Bruker AVANCE, Billerica, MA, USA), single crystal X-ray structure data was collected by a CCD surface detecting diffractometer (Bruker, Germany), and Mo-Kα (λ = 0.71073 Å) ray radiation was monochromated with graphite, IR spectra were recorded on a VERTEX 70 spectrophotometer with samples prepared as KBr (500-4000 cm −1 ) from Bruker, Germany, UV-Vis spectra were measured on a UV-3900 spectrophotometer from Hitachi, Tokyo, Japan, fluorescence spectra were recorded ...

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Selective colorimetric and “turn-on” fluorimetric detection of cyanide using an acylhydrazone sensor in aqueous media

Cited by 66 publications

References 38 publications

Newly synthesized homomultinuclear Co (II) and Cu (II) bissalamo‐like complexes: Structural characterizations, Hirshfeld analyses, fluorescence and antibacterial properties

Newly synthesized homomultinuclear Co (II) and Cu (II) bissalamo‐like complexes: Structural characterizations, Hirshfeld analyses, fluorescence and antibacterial properties

Sensitive and selective detection of Cu(II) ion: A new effective 1,8‐naphthalimide‐based fluorescence ‘turn off’ sensor

Unprecedented Dinuclear CuII N,O-Donor Complex: Synthesis, Structural Characterization, Fluorescence Property, and Hirshfeld Analysis

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