N-diethylaminosalicylidene based “turn-on” fluorescent Schiff base chemosensor for Al3+ ion: Synthesis, characterisation and DFT/TD-DFT studies

Kumar, Mukesh; Kumar, Amit; Kishor, Shyam; Kumar, Santosh; Manav, Navneet; Bhagi, Ajay Kumar; Kumar, Sunil; John, Rohith P.

doi:10.1016/j.molstruc.2021.131257

Cited by 35 publications

(17 citation statements)

References 124 publications

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“…Various Al 3+ sensors based on o-hydroxyphenyl hydrazone have already been reported from our groups as well as other scientists in the world (Peng et al 2021, Kumar et al 2022, Upadhyay et al 2010, Salarvand et al 2019, Shweta et al 2016, Singh and Singh 2014, Singh et al 2013, Dwivedi et al 2018, Alagesan et al 2013, Dwivedi et al 2019, Mao et al 2007, Krishnamoorthy et al2012, Xing et al 2020, Liu et al 2021, Gupta et al 2017, Jiang et al 2019, Kumar et al 2018. The selected receptor H 2 hpoh for the present study can easily be synthesized by a simple and one-step condensation reaction (Scheme 1).…”

Section: Introductionmentioning

confidence: 83%

“…Schiff bases create an environment similar to the one present in biological systems usually by making coordination through oxygen and nitrogen atoms (Peng et al 2021, Kumar et al 2022, Upadhyay and Kumar 2010. Several signi cant properties of carbonic acid hydrazides, along with their applications in medicine and analytical chemistry, have led to increased interest in their complexation characteristics with transition metal ions (Salarvand et al 2019.…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum in its ionic form (Al 3+ ) can react with biological species by altering or suppressing their function, leading to harmful effects. Al 3+ is neurotoxic; it causes neuro brillary, enzymatic, neurological disorders such as Parkinson's disease, Alzheimer's disease, and neurotransmitter changes in the central nervous system (Lv et al 2019, Peng et al 2021, Kumar et al 2022.…”

Section: Introductionmentioning

confidence: 99%

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A hydroxypropiophenone based fluorescent probe for selective determination of Al3+ ions in aqueous ethanol

Singh¹,

Singh

et al. 2022

Preprint

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In this work, we had synthesized a novel dihydrazone-based fluorescent probe N'1,N'2-bis{1-(2-hydroxyphenyl)propylidene}oxalohydrazide for Al3+ by simple condensation reaction. The prepared organic probe has been characterized by different physicochemical and spectroscopic techniques. The single-crystal structure of the receptor has also been reported. Aqueous ethanolic solution of probe shows an enhanced fluorescence in the presence of Al3+ ions whereas no appreciable change in spectral pattern is observed in presence of other cations viz. Na+, K+, Ca2+, Ba2+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Cr3+, Cd2+ and Hg2+. The binding mode of the receptor with Al3+ was studied by various spectral titration techniques such as UV-visible, fluorescence and 1H NMR. The receptor acts as a dibasic hexadentate ligand and interacts with two Al3+ ions with a high binding constant KB = 8.99 × 1010 M− 1. The lowest detection limit for the Al3+ complex of H2hpoh was determined to be 7.8 × 10− 5 M. With the help of DFT calculation, the mechanism of fluorescence enhancement has been explained.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A hydroxypropiophenone based fluorescent probe for selective determination of Al3+ ions in aqueous ethanol

Singh¹,

Singh

et al. 2022

Preprint

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“…Kumar et al prepared 4-(N,N-diethylamino)salicylaldehydebased Schiff base sensor 29 for Al 3+ detection in DMF solution. 96 Upon the addition of Al 3+ , sensor 29 displayed a turn-on fluorescence response (cyan color, l em = 481 nm) toward Al 3+ over other tested metal ions. Sensor 29 binds with Al 3+ in a 2 : 1 manner, forming a six coordinated Al 3+ -complex, and resulting in inhibition of the ICT process and leading to turn-on emission through the CHEF effect (Fig.…”

Section: Materials Advances Reviewmentioning

confidence: 97%

“…3.1.3 Al 3+ sensor 96,97,[211][212][213][214][215][216] . Aluminum is the third most abundant element (8.3%) in the earth crust after oxygen and silicon.…”

Section: Materials Advances Reviewmentioning

confidence: 99%

Fluorescent Schiff base sensors as a versatile tool for metal ion detection: strategies, mechanistic insights, and applications

Goshisht¹,

2022

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A Deep Dive into Thiourea‐Based Sensors for Cation Sensing

Khan,

Dawar,

2024

ChemistrySelect

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Thioureas are preferred structures in the disciplines of chemosensors, organic, and pharmaceutical field. Thioureas, a class of tuneable organosulfur compounds, and their derivatives are widely used in both biological and nonbiological fields. These compounds, which include sulfur (S) and nitrogen (N) atoms, have nucleophilic characteristics that assist in intra‐ or intermolecular H‐bonding among the molecules or analytes. Hence, the incorporation of the thiourea moiety into a wide spectrum of organic molecules has resulted in very versatile compounds with widespread applications in a variety of domains. Thiourea derivatives have been frequently produced and researched due to their chemosensing capability. Finally, in this work, a detailed comparison and analysis of the detecting capabilities of thiourea‐based cation sensor is performed. The knowledge gained in this work will be extremely useful in future endeavours to create organic sensors based on Fluorescence (Fl) and colorimetry, for the recognition of physiologically relevant metal ions.

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N-diethylaminosalicylidene based “turn-on” fluorescent Schiff base chemosensor for Al3+ ion: Synthesis, characterisation and DFT/TD-DFT studies

Cited by 35 publications

References 124 publications

A hydroxypropiophenone based fluorescent probe for selective determination of Al3+ ions in aqueous ethanol

A hydroxypropiophenone based fluorescent probe for selective determination of Al3+ ions in aqueous ethanol

Fluorescent Schiff base sensors as a versatile tool for metal ion detection: strategies, mechanistic insights, and applications

A Deep Dive into Thiourea‐Based Sensors for Cation Sensing

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