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Anitha O, Ghorai S, Thiruppathiraja T, Amir H, Murugan A, Natarajan R, Lakshmipathi S, Viswanathan C, Jothi M, Murugesapandian B. Pyridine appended pyrimidine bis hydrazone: Zn 2+/ATP detection, bioimaging and functional properties of its dinuclear Zn(II) complex. Talanta 2024; 273:125900. [PMID: 38490021 DOI: 10.1016/j.talanta.2024.125900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/17/2024]
Abstract
A pyridine functionalized pyrimidine-based system, H2P was successfully synthesized, characterized, and evaluated for its remarkable selective characteristics towards Zn2+ and ATP ions. The chemical sensing capabilities of H2P were demonstrated through absorption, fluorescence, and NMR spectroscopic techniques. The probe exhibited outstanding sensitivity when interacting with the ions, demonstrating relatively strong association constants and impressively low detection limits. The comprehensive binding mechanism of H2P with respect to Zn2+ and ATP ions was investigated using a combination of analytical methods, including Job's plot, NMR spectroscopy, mass spectrometry, and density functional theory (DFT) experiments. The interesting sensing ability of H2P for Zn2+/ATP ions was harnessed for live cell bioimaging and other diverse on-site detection purposes, including paper strips, cotton swabs, and applications involving mung bean sprouts. Further, the fluorescent probe demonstrated its effectiveness in detecting Zn2+ and ATP within live cells, indicating its significant potential in the realm of biological imaging applications. Moreover, the molecular configuration of the zinc complex (H2P-Zn2Cl4), derived from H2P, was elucidated using X-ray crystallography. This complex exhibited intriguing multifunctional attributes, encompassing its capability for detecting picric acid and for reversible acid/base sensing responses. The enhanced conducting behavior of the complex as well as its resistance properties were investigated by performing I-V characteristics and electrochemical impedance spectroscopic (EIS) experiments respectively.
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Affiliation(s)
- Ottoor Anitha
- Department of Chemistry, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Sandipan Ghorai
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | | | - Humayun Amir
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Abinayaselvi Murugan
- Department of Human Genetics, National Institute of Mental Health and Neurosciences, Bengaluru, India
| | - Ramalingam Natarajan
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | | | - Chinnuswamy Viswanathan
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Mathivanan Jothi
- Department of Human Genetics, National Institute of Mental Health and Neurosciences, Bengaluru, India
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Mahato M, Maiti A, Ahamed S, Rajbanshi M, Lama S, Das SK. Acid-base equilibrium in non-aqueous medium: colorimetric visualization, estimation of acidity constants and construction of molecular logic gates. RSC Adv 2024; 14:3480-3488. [PMID: 38259994 PMCID: PMC10801445 DOI: 10.1039/d3ra04696f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
A reversible acid-base probe, (N1E, N4E)-N1, N4-bis((Z)-3-(4-(dimethylamino)phenyl)allylidene)benzene-1,4-diamine (MM1), is introduced for the colorimetric visualization of acid-base equilibria in non-aqueous media. MM1 displays reversible acidochromic behavior, showing exciting colorimetric change varying from weak to strong acid. Also, we have fabricated a colorimetric paper strip-based test kit to visualize acid-base equilibria. A dipstick experiment has been demonstrated to visualize the acid-base equilibria in the gaseous state. This acid-base probe has also been employed to estimate the pKa values of several acidic compounds in a non-aqueous medium using overlapping indicator methods. Based on reversible acidochromic UV-visible absorption spectral and colorimetric behavior, we have constructed a reconfigurable dual input and dual output combinational logic circuit and set-reset memorized device employing acid and base as chemically encoded inputs and corresponding optical outputs. The current report evokes a new protocol for developing various reversible acidochromic probes and its implication for constructing opto-chemical molecular logic gates and estimating the acid dissociation constants of various acidic compounds in non-aqueous media.
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Affiliation(s)
- Manas Mahato
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
| | - Arpita Maiti
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
| | - Sabbir Ahamed
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
| | - Madan Rajbanshi
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
| | - Shubham Lama
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal Darjeeling West Bengal 734013 India
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Pandey SP, Desai AM, Singh PK. A molecular rotor based ratiometric detection scheme for aluminium ions in water. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Rahman Z, Mahato M, Tohora N, Ghanta S, Kumar Das S. Reversible acidochromism of a benzoxazole based scaffold and construction of reconfigurable dual output molecular logic gates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121310. [PMID: 35561445 DOI: 10.1016/j.saa.2022.121310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/17/2022] [Accepted: 04/23/2022] [Indexed: 06/15/2023]
Abstract
This report explores the reversible acidochromism of a benzoxazole-based scaffold (BPP), which is highly sensitive to the acid-base in the liquid and gas phases. With the addition of acid, the solution of BPP changes its color from yellow to pink fuchsia due to the transformation of its imine into quinonoid form. Colour change is completely reversible in the presence of the base, confirming the reversible acidochromic behavior of the present BPP system. Further, a paper strips-based test kit has been demonstrated for the practical utility of the present acidochromic BPP to identify a trace amount of acid-base in solution and gas-phase, respectively. The mechanistic aspect of detection of acid-base and colorimetric change in the presence of acid-base have been explored by density functional theoretical investigations and 1H NMR experiments. Moreover, we have constructed a reconfigurable dual-output combinatorial logic circuit by utilizing the spectral shift between two wavelengths at 404 nm and 552 nm, respectively, and colorimetric change of the BPP in the presence and absence of acid-base.
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Affiliation(s)
- Ziaur Rahman
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India
| | - Manas Mahato
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India
| | - Najmin Tohora
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India
| | - Susanta Ghanta
- Department of Chemistry, National Institute of Technology, Agartala, Barjala, Jirania, Tripura 799046, India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
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Naime J, Mamun MSA, Aly Saad Aly M, Maniruzzaman M, Badal MMR, Karim KMR. Synthesis, characterization and application of a novel polyazo dye as a universal acid-base indicator. RSC Adv 2022; 12:28034-28042. [PMID: 36320250 PMCID: PMC9527568 DOI: 10.1039/d2ra04930a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023] Open
Abstract
A novel organic polyazo dye is synthesized by the diazotization of aromatic aniline, followed by coupling it with sulfanilic acid and N,N-dimethylaniline. Characterization was done by 1H-NMR, 13C-NMR, and FTIR spectroscopy. Differential scanning calorimetry (DSC) reveals that phase transition for this molecule is exothermic. The optical band gap is estimated from the absorption cutoff point using UV-Visible spectroscopy. Thermal gravimetric analysis (TGA) addresses the thermal stability of the molecule and is found to be at ∼250 °C. The structure of the synthesized molecule is analogous to that of methyl orange and contains three azo groups. These three azo groups help accept more than two protons and provide two pK a values when diprotic acid or a mixture of acids is used in different titrations. Specifically, when a polybasic acid is in strong base titration, the pK a values were found to be 3.5 and 9.1. Moreover, for strong base and (strong + weak) acid mixture titration, the pK a values are found to be 9.2 and 3.3. Furthermore, the pK a values are found to be 8.6 and 2.8 for (strong and weak) base mixture and (strong and weak) acid mixture titration, respectively. Owing to its increased proton accepting capacity, it can be found in the two pH ranges of 2.1-3.8 for orange color and 8.2-9.8 for yellow color, thus indicating a unique property as a universal indicator for acid-base titration. The dissociation constant of this dye is found to be 3.4 × 10-6, determined in a mixed aqueous solution of 10 wt% ethanol, and a linear relationship between pK a and pH is observed in this solvent system.
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Affiliation(s)
- Jannatul Naime
- Chemistry Discipline, School of Science, Engineering and Technology, Khulna University Khulna-9208 Bangladesh
| | - Muhammad Shamim Al Mamun
- Chemistry Discipline, School of Science, Engineering and Technology, Khulna University Khulna-9208 Bangladesh
| | - Mohamed Aly Saad Aly
- Department of Electrical and Computer Engineering at Georgia Tech Shenzhen Institute (GTSI), Tianjin University Shenzhen Guangdong 518052 China
| | - Md Maniruzzaman
- Department of Chemistry, Khulna University of Engineering and Technology Khulna-9203 Bangladesh
| | - Md Mizanur Rahman Badal
- Department of Chemistry, Khulna University of Engineering and Technology Khulna-9203 Bangladesh
| | - Kaykobad Md Rezaul Karim
- Chemistry Discipline, School of Science, Engineering and Technology, Khulna University Khulna-9208 Bangladesh
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Rahman Z, Rajbanshi M, Mahato M, Ghanta S, Kumar Das S. A phthalimide scaffold smart molecule for visualization of acid-base equilibrium and determination of acid dissociation constants in the non-aqueous medium. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rahman Z, Das SK. Ionic Liquids based Acid‐base Indicators for Aqueous to the Non‐Aqueous Medium: An Overview. ChemistrySelect 2021. [DOI: 10.1002/slct.202102273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ziaur Rahman
- Department of Chemistry University of North Bengal West Bengal India- 734013
| | - Sudhir Kumar Das
- Department of Chemistry University of North Bengal West Bengal India- 734013
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