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Szulc P, Luboch E, Okuniewski A, Wagner-Wysiecka E. Fluorescence of p-hydroxyazobenzocrowns - Tautomeric equilibrium effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123721. [PMID: 38086231 DOI: 10.1016/j.saa.2023.123721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024]
Abstract
The spectroscopic properties of a series of para-hydroxyazobenzocrowns, including three novel compounds, were investigated using UV-Vis absorption and emission spectroscopy. This study presents, for the first time, determined quantum yield (QY) values for macrocycles of this category, ranging between 0.122 and 0.195. The highest values were obtained for crowns bearing two phenyl substituents in benzene rings. The impact of aromatic ring substituents and macroring size on the spectral characterization (1H NMR and FTIR) of p-hydroxyazobenzocrowns was examined in consideration of the azophenol ⇄ quinone-hydrazone tautomeric equilibrium. Dipole moments of p-hydroxyazobenzocrowns in the ground and excited states have been determined. The alignment between experimental findings and theoretical studies was established.
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Affiliation(s)
- Paulina Szulc
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Elżbieta Luboch
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Andrzej Okuniewski
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Ewa Wagner-Wysiecka
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland; Advanced Materials Center, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland.
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Omar AZ, Khamis AM, Hamed EA, El-Sadany SK, Rehim EMA, Elba ME, Mohamed MG, El-Atawy MA. Synthesis, characterization, and application of novel aryldiazenyl disperse dyes on polyester fabrics. Sci Rep 2023; 13:21554. [PMID: 38057351 DOI: 10.1038/s41598-023-48368-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023] Open
Abstract
Azo dyes are widely used for dyeing polyester fabrics but require optimization of properties like color strength and fastness. Fourteen novel disperse azo dyes were synthesized from 2,3-naphthalenediol and aniline derivatives to examine their potential for polyester dyeing. The dyes were prepared via diazotization and coupling reactions and characterized using FT-IR, UV-Vis, 1H NMR, 13C NMR, and elemental analysis. Furthermore, several techniques were employed to study the azo-hydrazone tautomerism, including UV-Vis spectroscopy, NMR spectroscopy, and computational methods. DFT computations revealed hydrazone tautomers were more stable than azo tautomers. The prepared azo dyes were applied on polyester fabrics at 2% depth using a high temperature pressure technique in water utilizing DYEWELL-002 as a dispersing agent. The color shading of dyed polyester samples ranged from peach amber to apple of my eye, depending on the coupler moieties. The fastness properties, assessed using a grey scale of dyed polyester fabrics, indicated very good to excellent grades for most dyes. Additionally, measurements of color strength (K/S), dye exhaustion (%E), as well as colorimetric colors CILAB of dyed polyester fabrics values, were measured and discussed in terms of the effect of substituents. The findings provide new insights into structure-performance relationships to design optimized disperse dyes for polyester coloration. Overall, the synthesized aryldiazenyl dyes are promising candidates for dyeing polyester fabrics across a spectrum of shades with good fastness properties.
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Affiliation(s)
- Alaa Z Omar
- Chemistry Department, Faculty of Science, Alexandria University, P.O. 426, Ibrahemia, Alexandria, 21321, Egypt.
| | - Asmaa M Khamis
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Ezzat A Hamed
- Chemistry Department, Faculty of Science, Alexandria University, P.O. 426, Ibrahemia, Alexandria, 21321, Egypt
| | - Samir K El-Sadany
- Chemistry Department, Faculty of Science, Alexandria University, P.O. 426, Ibrahemia, Alexandria, 21321, Egypt
| | | | - Mohamed E Elba
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Mohamed G Mohamed
- Chemistry Department, Faculty of Science, Alexandria University, P.O. 426, Ibrahemia, Alexandria, 21321, Egypt
| | - Mohamed A El-Atawy
- Chemistry Department, Faculty of Science, Alexandria University, P.O. 426, Ibrahemia, Alexandria, 21321, Egypt
- Chemistry Department, Faculty of Science, Taibah University, 46423, Yanbu, Saudi Arabia
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Anitha O, Thiruppathiraja T, Lakshmipathi S, Murugesapandian B. Diethylaminophenol appended pyrimidine bis hydrazone for the sequential detection of Al 3+ and PPi ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123077. [PMID: 37413920 DOI: 10.1016/j.saa.2023.123077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/05/2023] [Accepted: 06/25/2023] [Indexed: 07/08/2023]
Abstract
In this study, a novel easy-to-prepare diethylaminophenol appended pyrimidine bis hydrazone (HD) has been designed and developed. The probe exhibits excellent sequential sensing characteristics towards Al3+ and PPi ions. The emission studies, various spectroscopic techniques and lifetime results have been utilized to understand the binding mechanism of HD with Al3+ ions and, to discover the specificity as well as the efficacy of the probe in sensing Al3+ ions. The good association constant in addition to the lower detection limit values makes the probe effective for the detection of Al3+. The in-situ produced HD-Al3+ ensemble could consecutively detect PPi via a turn-off fluorescence response and the selectivity and sensitivity characteristics of the generated ensemble towards PPi were described based on the demetallation approach. The overall sensing property of HD was perfectly employed for constructing logic gates, real water, and tablet applications. Paper strips, as well as cotton-swab experiments, were also conducted inorder to check the practical utility of the synthesized probe.
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Affiliation(s)
- Ottoor Anitha
- Department of Chemistry, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
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Maji A, Naskar R, Mitra D, Gharami S, Murmu N, Mondal TK. Fabrication of a New Coumarin Based Fluorescent "turn-on" Probe for Distinct and Sequential Recognition of Al 3+ and F - Along With Its Application in Live Cell Imaging. J Fluoresc 2023; 33:2403-2414. [PMID: 37084063 DOI: 10.1007/s10895-023-03208-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/09/2023] [Indexed: 04/22/2023]
Abstract
A new coumarin based fluorescent switch PCEH is fabricated which displays high selective sensing towards Al3+ among other metal cations at physiological pH. On gradual addition of Al3+, PCEH shows a brilliant "turn-on" emission enhancement in MeOH/H2O (4/1, v/v) solution. This new fluorescent switch is proven to be a reversible probe by gradual addition of F- into the PCEH-Al3+ solution. Detection limit as well as binding constant values are calculated to be in the order of 10-9 M and 104 M-1 respectively. We have also explored its potential as a biomarker in the application of live cell imaging using breast cancer cells (MDA-MB-231 cell).
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Affiliation(s)
- Atanu Maji
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Rahul Naskar
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Debarpan Mitra
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
| | - Saswati Gharami
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
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Tawfik SM, Farag AA, Abd-Elaal AA. Fluorescence Naphthalene Cationic Schiff Base Reusable Paper as a Sensitive and Selective for Heavy Metals Cations Sensor: RSM, Optimization, and DFT Modelling. J Fluoresc 2023:10.1007/s10895-023-03426-6. [PMID: 37713015 DOI: 10.1007/s10895-023-03426-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023]
Abstract
Heavy metals are particularly damaging contaminants in the environment, and even trace concentrations represent a risk to human health due to their toxicity. To detect the heavy metals of Mn2+ and Co2+ ions, a novel selective reusable paper-based Fluorescence naked-eye sensor based on naphthalene cationic Schiff base (NCSB) was synthesized and confirmed using FT-IR, 1 H-NMR, and MS tools. Based on a blue to colorless color change in the aqueous solution, the NCSB sensor is utilized to Mn2+ and Co2+ cations selectively among other metal ions (Fe2+, Cu2+, Mg2+, Ni2+, Zn2+, Cd2+, Hg2+, Pb2+, Sn2+ and Cr3+). In the aqueous medium, the NCSB sensor displayed high sensitivity, with limits of detection (LOD) values of 0.014 µM (14.08 nM) and 0.041 µM (41.47 nM) for Mn2+ and Co2+ cations, respectively. The paper-based sensor naked-eye detected Mn2+ and Co2+ cations in water at concentrations as low as 0.65 µM (65 nM) and 0.086 µM (86 nM), respectively. It was discovered that 5 min of incubation time and a pH range of 7 to 11 were optimal for the complexation reaction between the Mn2+ and Co2+ ions and the NCSB sensor. Through a static quenching process, the interaction of the different metal ions with the Schiff base group in the NCSB molecule results in the development of a ground-state non-fluorescent complex. NCSB sensor was also successfully applied in analysis of Mn2+ and Co2+ in environmental water with good recoveries of 94.8-105.9%. The theoretical calculations based on density functional theory (DFT) studies are in support of experimental interpretations. The links between the input factors and the anticipated response were evaluated using the quadratic model of the response surface methodology (RSM) modeling.
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Affiliation(s)
- Salah M Tawfik
- Egyptian Petroleum Research Institute, Cairo, 11727, Egypt
| | - Ahmed A Farag
- Egyptian Petroleum Research Institute, Cairo, 11727, Egypt.
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Biswas A, Naskar R, Mitra D, Das A, Gharami S, Murmu N, Mondal TK. A new “turn-on” molecular switch for idiosyncratic detection of Al 3+ ion along with its application in live cell imaging. NEW J CHEM 2022. [DOI: 10.1039/d2nj03481f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A new highly sensitive, reversible, reusable and fluorogenic “turn-on” switch (HBTC) has been fabricated for the sole detection of Al3+.
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Affiliation(s)
- Amitav Biswas
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Rahul Naskar
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Debarpan Mitra
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
| | - Akash Das
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Saswati Gharami
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
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