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Lakshminarayanan S, Jeyasingh V, Murugesan K, Piramuthu L, Selvapalam N, Dass G. A Molecular Shuttlecock: π-Hole-Induced Selective Colorimetric Tripodal Receptor for Cyanide. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822120085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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K N, Shetty AN, Trivedi DR. Recent advances in the fluorescent and colorimetric detection of dihydrogen phosphate. Supramol Chem 2022. [DOI: 10.1080/10610278.2022.2035387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Nagaraj K
- Material Science Laboratory, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, India
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, - Mangalore, India
| | - A. Nityananda Shetty
- Material Science Laboratory, National Institute of Technology Karnataka (NITK) Surathkal, Mangalore, India
| | - Darshak R. Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, - Mangalore, India
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Colorimetric and selective turn-on fluorescent sensor for cyanide via aggregation-induced enhanced emission (AIEE). CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01984-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Jeyasingh V, Rajakumar S, Kumaresan M, Lakshminarayanan S, Selvapalam N, Dass G, Piramuthu L. A Molecular Swan: Naphthalene-hydrazone-based π···hole-coupled electron-deficient naked-eye selective colorimetric cyanide sensor. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01845-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pyrene-Hydrazone-π···Hole Coupled Turn-on Fluorescent and Naked- Eye Colorimetric Sensor for Cyanide: Role of Homogeneous π-Hole Dispersion in Anion Selectivity. J Fluoresc 2021; 31:1303-1309. [PMID: 34110596 DOI: 10.1007/s10895-021-02765-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/01/2021] [Indexed: 10/21/2022]
Abstract
A pyrene based probe associated with π···hole - hydrazone as one of the recognizing elements is synthesized and its turn in to a selective colorimetric and turn-on fluorescent sensor, (L3) for cyanide anion. This chemo sensor show high selectivity towards cyanide anion through photo electron transfer (PET) mechanism. The binding strength and sensitivity of the chemo sensor L3 towards cyanide are found to be 2.0 X 104, and 4.44 x 10-4 respectively. We have compared this high selectivity of the receptor towards cyanide, with our previously reported receptors L1 and L2. The detailed UV-Vis, Emission, 1H-NMR, IR spectroscopic and Molecular Electrostatic Potential (MEP) studies reveals that the homogeneous π···hole dispersion in the aromatic ring governing the selectivity of the receptor towards cyanide anion. Such a positive π···hole homogeneous dispersion is missing in the case of sensor L2, instead we have polarized π···hole dispersion towards 2nd and 4th position of di-nitrophenyl chromophoric unit in L2.
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Chakraborty S, Paul S, Roy P, Rayalu S. Detection of cyanide ion by chemosensing and fluorosensing technology. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108562] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Murugesan K, Jeyasingh V, Lakshminarayanan S, Selvapalam N, Dass G, Piramuthu L. Anion-binding-induced and reduced fluorescence emission (ABIFE & ABRFE): A fluorescent chemo sensor for selective turn-on/off detection of cyanide and fluoride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 245:118943. [PMID: 32980761 DOI: 10.1016/j.saa.2020.118943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/30/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
A new hydrazine based π-hole assisted, electron deficient turn-on/off fluorescent and colorimetric sensor L with anion-binding induced/reduced fluorescent emission (ABIFE & ABRFE) has been designed and synthesized. The prepared sensor L exhibited excellent turn-on fluorescence emission in the presence of cyanide ion through ABIFE. On the other hand, the receptor L turns-off its fluorescence intensity upon binding with fluoride; however, the reduced emission intensity of this complex of L is recovered by addition of cyanide. The sensor L is almost intact with other tested anions. To the best of our knowledge, this is the first report on sensing of cyanide and fluoride by a neutral hydrazine based receptor via anion-binding-induced fluorescence emission (ABIFE) and anion-binding-reduced fluorescence emission (ABRFE) mechanisms respectively. The observed ABIFE and ABRFE phenomena of L with cyanide is further supported by UV-Vis, Emission, 1H NMR and IR spectroscopic studies.
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Affiliation(s)
- Kumaresan Murugesan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India
| | - Vanthana Jeyasingh
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India
| | - Sudha Lakshminarayanan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India
| | - Narayanan Selvapalam
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India
| | - Geetha Dass
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India
| | - Lakshminarayanan Piramuthu
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626 126, India.
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Jeyasingh V, Murugesan K, Lakshminarayanan S, Selvapalam N, Das G, Piramuthu L. Selective colorimetric sensing and perfect linear recognition of azide: Formation of Cu-azide-Cu cascade complex within the cavity of cryptand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118550. [PMID: 32544856 DOI: 10.1016/j.saa.2020.118550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Bis-trpn [tris(3-aminopropyl)amine], capped dicopper complex of bicyclic cryptand L, 1, became a potential selective colorimetric chemosensor for azide anion. Complex 1 is generating a space inside the cylindrical cavity which will be opt for perfect linear recognition of azide anion through as N4-Cu⋯N3-⋯Cu-N4 axle. Naked eye colorimetric and UV-Vis spectrometric investigations shows the complex 1 has the capability of selective sensing of azide anion. The association constant and limits of detection (LoD) of complex 1 towards azide are found to be 2.754 × 103 M-1 and 1.91 × 10-6 M. To the best of our knowledge, this is the first example of selective colorimetric sensing of azide by a bis‑copper cryptate 1 via ideal linear orientation of N4-Cu⋯N3⋯Cu-N4 axle inside the cylindrical shaped cavity.
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Affiliation(s)
- Vanthana Jeyasingh
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India
| | - Kumaresan Murugesan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India
| | - Sudha Lakshminarayanan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India
| | - Narayanan Selvapalam
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India
| | - Geetha Das
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India
| | - Lakshminarayanan Piramuthu
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur 626126, Tamil Nadu, India.
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Lakshminarayanan S, Jeyasingh V, Murugesan K, Samy MKK, Selvapalam N, Das G. C 3V symmetric tripodal molecular pocket for linear anions: Selective colorimetric detection of azide through N 4-Cu-π···hole interactions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118615. [PMID: 32593844 DOI: 10.1016/j.saa.2020.118615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/03/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Tris(3-amino propyl)amine (TRPN) based C3v symmetric tripodal molecular pocket, L has been prepared and mono copper complex of L, (1) having Cu-N4-π··· hole as recognizing elements, becoming a potential and selective colorimetric chemo sensor for perfect linear recognition of N3-, generate a Cu-NNN- π··· hole unit inside the tripodal pocket. Systematic spectrometric and naked-eye colorimetric studies reveal that, this chemo sensor is also colorimetrically recognizing the cyanide ion by its cavity via Cu-N4-π···hole interactions; nevertheless, when azide anion is entering as a guest into the molecular pocket of 1 which is already hosted cyanide anion, then host displaces cyanide ion, subsequently azide is getting inside the cavity. The strength of the copper complex, 1 towards azide and cyanide are found to be 2.36 × 103M-1, and 1.87 × 103 M-1 respectively in 7:3 acetonitrile:water solvent medium. Further, the ability of cyanide displacement by azide in complex 1 is found to be 2.53 × 103 M-1. To the best of our knowledge, this is the first example of naked-eye detection of azide via cyanide displacement assay by a tripodal receptor.
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Affiliation(s)
- Sudha Lakshminarayanan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626126, India
| | - Vanthana Jeyasingh
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626126, India
| | - Kumaresan Murugesan
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626126, India
| | | | - Narayanan Selvapalam
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626126, India
| | - Geetha Das
- Department of Chemistry, International Research Centre, Centre for Supramolecular Chemistry, Kalasalingam Academy of Research and Education (KARE), Anand Nagar, Krishnankoil, Srivilliputtur, Tamil Nadu 626126, India.
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Most Efficient Tris(3-Aminopropyl) Amine Based Electron Deficient Tripodal Receptor for Azide. J Fluoresc 2020; 30:291-300. [PMID: 31997142 DOI: 10.1007/s10895-020-02490-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 01/15/2020] [Indexed: 01/18/2023]
Abstract
Investigation on strength of the tris(2-amino ethyl) amine and tris (3-amino propyl) amine backboned tripodal receptors, L and L1 (incorporated with tripodal C3ν frame, thio urea-amide linkage and π-hole assisting functionality) which are premeditated to explore the prospect for a particular anion recognition are studied. UV-Vis, 1H- NMR, and IR spectroscopy studies indicates that both the receptors sensing azide anion, colorimetrically and binds azide anion stronger than any other anions such as acetate, and cyanide. In particular the receptor L1 shows the highest binding strength towards azide anion. To the best of our knowledge this is the first receptor showing highest binding ability with azide anion. We used Molecular Electrostatic Potential Surface analyses to support our spectroscopic findings. The association constant and limits of detection for receptor L1 with azide is found to be 8.4X105M-1 and 3.16X10-6 M respectively. The observed highest binding strength of L1 with azide is, could be due to the cooperative effect of extended traditional hydrogen bonding via thiourea-amide functionality, anion-π interaction and C3ν suitable framework.
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