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E V, Ghadei SK, Ruidas S, Bhakta V, Sakthivel R, Sankaran KJ, Bhaumik A, Dalapati S. A Metal-Free Triazacoronene-Based Bimodal VOC Sensor. ACS Sens 2024; 9:251-261. [PMID: 38207113 DOI: 10.1021/acssensors.3c01889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Developing suitable sensors for selective and sensitive detection of volatile organic compounds (VOCs) is crucial for monitoring indoor and outdoor air quality. VOCs are very harmful to our health upon inhalation or contact. Bimodal sensor materials with more than one transduction capability (optical and electrical) offer the ability to extract complementary information from the individual analyte, thus improving detection accuracy and performance. The privilege of manipulating the optoelectronic properties of the polycyclic aromatic hydrocarbon-based semiconducting materials offers rapid signal transduction in multimodal sensing applications. A thiophene-functionalized triazacoronene (TTAC) donor-acceptor-donor (D-A-D) type sensor is reported here for VOC sensing. The single-crystal X-ray structure analysis of the TTAC revealed that a distinctive supramolecular polymer architecture was formed because of cooperative π-π and intermolecular D-A interactions and exhibited rapid signal transduction upon exposure to specific VOCs. The TTAC-embedded green luminescent paper-based test strip exhibited an on-off fluorescence response upon nitrobenzene vapor exposure for 120 s. The selective and rapid response is due to the fast photoinduced electron transfer, as is evident from the time-resolved excited-state dynamics and density functional theory studies. The thick-film-based prototype chemiresistive sensor detects harmful VOCs in a custom-made gas sensing system including benzene, toluene, and nitrobenzene. The TTAC sensor rapidly responds (200 s) at relatively low temperatures (180 οC) compared to other reported metal-oxide-based sensors.
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Affiliation(s)
- Varadharajan E
- Department of Materials Science, School of Technology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu 610005, India
| | - Surya Kanta Ghadei
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Santu Ruidas
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Viki Bhakta
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
| | - Ramasamy Sakthivel
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | | | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Sasanka Dalapati
- Department of Materials Science, School of Technology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu 610005, India
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2
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Ruidas S, Das A, Kumar S, Dalapati S, Manna U, Bhaumik A. Non‐Fluorinated and Robust Superhydrophobic Modification on Covalent Organic Framework for Crude‐Oil‐in‐Water Emulsion Separation. Angew Chem Int Ed Engl 2022; 61:e202210507. [DOI: 10.1002/anie.202210507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Santu Ruidas
- School of Materials Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Avijit Das
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Saurav Kumar
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Sasanka Dalapati
- Department of Materials Science, School of Technology Central University of Tamil Nadu (CUTN) Thiruvarur 610005 Tamil Nadu India
| | - Uttam Manna
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
- Centre for Nanotechnology Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Asim Bhaumik
- School of Materials Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
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3
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Ruidas S, Das A, Kumar S, Dalapati S, Manna U, Bhaumik A. Non‐Fluorinated and Robust Superhydrophobic Modification on Covalent Organic Framework for Crude‐Oil‐in‐Water Emulsion Separation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Santu Ruidas
- Indian Association for the Cultivation of Science School of Materials Sciences 2A & 2B Raja S C Mullick Road, Jadavpur 700032 Kolkata INDIA
| | - Avijit Das
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Saurav Kumar
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Sasanka Dalapati
- Central University of Tamil Nadu Department of Materials Science INDIA
| | - Uttam Manna
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Asim Bhaumik
- Indian Association for the Cultivation of Science Department of Materials Science 2A & B Raja S. C. Mullick RoadJadavpur 700032 Kolkata INDIA
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Abednatanzi S, Gohari Derakhshandeh P, Dalapati S, Veerapandian SKP, Froissart AC, Epping JD, Morent R, De Geyter N, Van Der Voort P. Metal-Free Chemoselective Reduction of Nitroarenes Catalyzed by Covalent Triazine Frameworks: The Role of Embedded Heteroatoms. ACS Appl Mater Interfaces 2022; 14:15287-15297. [PMID: 35322660 DOI: 10.1021/acsami.2c01091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Chemoselective reduction of nitroarenes to arylamines is a core technology for the synthesis of numerous chemicals. The technology, however, relies on applying precious noble metal catalysts. We present our findings on the development of robust nanoporous covalent triazine frameworks (CTFs) as metal-free catalysts for the green chemoselective reduction of nitroarenes. The turnover frequency is found to be 43.03 h-1, exceeding activities of the heteroatom-doped carbon nanomaterials by a factor of 30. The X-ray photoelectron spectroscopy and control experiments provide further insights into the nature of active species for prompt catalysis. This report confirms the importance of quaternary 'N' and 'F' atom functionalities to create active hydrogen species via charge delocalization as a critical step in improving the catalytic activity.
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Affiliation(s)
- Sara Abednatanzi
- Center for Ordered Materials, Organometallics and Catalysis, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium
| | - Parviz Gohari Derakhshandeh
- Center for Ordered Materials, Organometallics and Catalysis, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium
| | - Sasanka Dalapati
- Center for Ordered Materials, Organometallics and Catalysis, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium
- Department of Materials Science, School of Technology, Central University of Tamil Nadu (CUTN), Thiruvarur 610005, Tamil Nadu, India
| | - Savita K P Veerapandian
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Anne-Claire Froissart
- Center for Ordered Materials, Organometallics and Catalysis, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium
| | - Jan Dirk Epping
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Rino Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Nathalie De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Ghent, Belgium
| | - Pascal Van Der Voort
- Center for Ordered Materials, Organometallics and Catalysis, Ghent University, Krijgslaan 281-S3, 9000 Gent, Belgium
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Chatterjee S, Bhanja P, Ghosh D, Kumar P, Kanti Das S, Dalapati S, Bhaumik A. Metformin-Templated Nanoporous ZnO and Covalent Organic Framework Heterojunction Photoanode for Photoelectrochemical Water Oxidation. ChemSusChem 2021; 14:408-416. [PMID: 33052003 DOI: 10.1002/cssc.202002136] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/02/2020] [Indexed: 06/11/2023]
Abstract
Photoelectrochemical water-splitting offers unique opportunity in the utilization of abundant solar light energy and water resources to produce hydrogen (renewable energy) and oxygen (clean environment) in the presence of a semiconductor photoanode. Zinc oxide (ZnO), a wide bandgap semiconductor is found to crystallize predominantly in the hexagonal wurtzite phase. Herein, we first report a new crystalline triclinic phase of ZnO by using N-rich antidiabetic drug metformin as a template via hydrothermal synthesis with self-assembled nanorod-like particle morphology. We have fabricated a heterojunction nanocomposite charge carrier photoanode by coupling this porous ZnO with a covalent organic framework, which displayed highly enhanced photocurrent density of 0.62 mA/cm2 at 0.2 V vs. RHE in photoelectrochemical water oxidation and excellent photon-to-current conversion efficiency at near-neutral pH vis-à-vis bulk ZnO. This enhancement of the photocurrent for the porous ZnO/COF nanocomposite material over the corresponding bulk ZnO could be attributed to the visible light energy absorption by COF and subsequent efficient charge-carrier mobility via porous ZnO surface.
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Affiliation(s)
- Sauvik Chatterjee
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Piyali Bhanja
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Dibyendu Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Praveen Kumar
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Sabuj Kanti Das
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
| | - Sasanka Dalapati
- School of Technology, Department of Materials Science, Central University of Tamil Nadu (CUTN), Neelakudi, Thiruvarur, Tamil Nadu, 610005, India
| | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mallick Road, Jadavpur, Kolkata, 700032, India
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6
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Mondal S, Mohanty B, Nurhuda M, Dalapati S, Jana R, Addicoat M, Datta A, Jena BK, Bhaumik A. A Thiadiazole-Based Covalent Organic Framework: A Metal-Free Electrocatalyst toward Oxygen Evolution Reaction. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05470] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sujan Mondal
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, India
| | - Bishnupad Mohanty
- Material Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Maryam Nurhuda
- School of Science and Technology, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, U.K
| | - Sasanka Dalapati
- Institute of Chemical Technology-Indian Oil Odisha Campus (ICT-IOC), Bhubaneswar, Odisha 751013, India
| | - Rajkumar Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, India
| | - Matthew Addicoat
- School of Science and Technology, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, U.K
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, India
| | - Bikash Kumar Jena
- Material Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur 700032, India
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7
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Geng K, He T, Liu R, Dalapati S, Tan KT, Li Z, Tao S, Gong Y, Jiang Q, Jiang D. Covalent Organic Frameworks: Design, Synthesis, and Functions. Chem Rev 2020; 120:8814-8933. [PMID: 31967791 DOI: 10.1021/acs.chemrev.9b00550] [Citation(s) in RCA: 1136] [Impact Index Per Article: 284.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covalent organic frameworks (COFs) are a class of crystalline porous organic polymers with permanent porosity and highly ordered structures. Unlike other polymers, a significant feature of COFs is that they are structurally predesignable, synthetically controllable, and functionally manageable. In principle, the topological design diagram offers geometric guidance for the structural tiling of extended porous polygons, and the polycondensation reactions provide synthetic ways to construct the predesigned primary and high-order structures. Progress over the past decade in the chemistry of these two aspects undoubtedly established the base of the COF field. By virtue of the availability of organic units and the diversity of topologies and linkages, COFs have emerged as a new field of organic materials that offer a powerful molecular platform for complex structural design and tailor-made functional development. Here we target a comprehensive review of the COF field, provide a historic overview of the chemistry of the COF field, survey the advances in the topology design and synthetic reactions, illustrate the structural features and diversities, scrutinize the development and potential of various functions through elucidating structure-function correlations based on interactions with photons, electrons, holes, spins, ions, and molecules, discuss the key fundamental and challenging issues that need to be addressed, and predict the future directions from chemistry, physics, and materials perspectives.
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Affiliation(s)
- Keyu Geng
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Ting He
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Ruoyang Liu
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Sasanka Dalapati
- Field of Environment and Energy, School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Japan
| | - Ke Tian Tan
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zhongping Li
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Shanshan Tao
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Yifan Gong
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Qiuhong Jiang
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Donglin Jiang
- Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
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8
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Wang P, Chen X, Jiang Q, Addicoat M, Huang N, Dalapati S, Heine T, Huo F, Jiang D. High‐Precision Size Recognition and Separation in Synthetic 1D Nanochannels. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909851] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ping Wang
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Xinyi Chen
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Qiuhong Jiang
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Matthew Addicoat
- School of Science and Technology Nottingham Trent University Nottingham NG11 8NS UK
| | - Ning Huang
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Sasanka Dalapati
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Thomas Heine
- Department of Theoretical Chemistry TU Dresden Mommsenstrasse 13 01062 Dresden Germany
| | - Fengwei Huo
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Donglin Jiang
- Department of Chemistry Faculty of Science National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 P. R. China
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9
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Kanti Das S, Mishra S, Manna K, Kayal U, Mahapatra S, Das Saha K, Dalapati S, Das GP, Mostafa AA, Bhaumik A. Correction: A new triazine based π-conjugated mesoporous 2D covalent organic framework: its in vitro anticancer activities. Chem Commun (Camb) 2018; 54:12270. [PMID: 30324943 DOI: 10.1039/c8cc90465k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'A new triazine based π-conjugated mesoporous 2D covalent organic framework: its in vitro anticancer activities' by Sabuj Kanti Das et al., Chem. Commun., 2018, 54, 11475-11478.
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Affiliation(s)
- Sabuj Kanti Das
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India.
| | - Snehasis Mishra
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata - 700032, India
| | - Krishnendu Manna
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata - 700032, India
| | - Utpal Kayal
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India.
| | - Supratim Mahapatra
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata - 700032, India
| | - Krishna Das Saha
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata - 700032, India
| | - Sasanka Dalapati
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah - 711103, India
| | - G P Das
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India.
| | - Amany A Mostafa
- Department of Ceramic, Nanomedicine & Tissue Engineering Laboratory, National Research Centre, El Bohouth St., Dokki, Cairo - 12622, Egypt
| | - Asim Bhaumik
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India.
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Kanti Das S, Mishra S, Manna K, Kayal U, Mahapatra S, Das Saha K, Dalapati S, Das GP, Mostafa AA, Bhaumik A. A new triazine based π-conjugated mesoporous 2D covalent organic framework: itsin vitroanticancer activities. Chem Commun (Camb) 2018; 54:11475-11478. [DOI: 10.1039/c8cc07289b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 2D π-conjugated COF, TrzCOF has been synthesized and it showed excellent anticancer activity for the colorectal carcinoma HCT-116 cell line.
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Affiliation(s)
- Sabuj Kanti Das
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur
- Kolkata – 700 032
- India
| | - Snehasis Mishra
- Cancer Biology and Inflammatory Disorder Division
- CSIR-Indian Institute of Chemical Biology, Jadavpur
- Kolkata – 700032
- India
| | - Krishnendu Manna
- Cancer Biology and Inflammatory Disorder Division
- CSIR-Indian Institute of Chemical Biology, Jadavpur
- Kolkata – 700032
- India
| | - Utpal Kayal
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur
- Kolkata – 700 032
- India
| | - Supratim Mahapatra
- Cancer Biology and Inflammatory Disorder Division
- CSIR-Indian Institute of Chemical Biology, Jadavpur
- Kolkata – 700032
- India
| | - Krishna Das Saha
- Cancer Biology and Inflammatory Disorder Division
- CSIR-Indian Institute of Chemical Biology, Jadavpur
- Kolkata – 700032
- India
| | - Sasanka Dalapati
- Department of Chemistry
- Indian Institute of Engineering Science and Technology, Shibpur
- Howrah – 711103
- India
| | - G. P. Das
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur
- Kolkata – 700 032
- India
| | - Amany A. Mostafa
- Department of Ceramic
- Nanomedicine & Tissue Engineering Laboratory
- National Research Centre
- El Bohouth St
- Dokki
| | - Asim Bhaumik
- Department of Materials Science, Indian Association for the Cultivation of Science Jadavpur
- Kolkata – 700 032
- India
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11
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Jin E, Asada M, Xu Q, Dalapati S, Addicoat MA, Brady MA, Xu H, Nakamura T, Heine T, Chen Q, Jiang D. Two-dimensional sp2carbon–conjugated covalent organic frameworks. Science 2017; 357:673-676. [DOI: 10.1126/science.aan0202] [Citation(s) in RCA: 607] [Impact Index Per Article: 86.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 06/21/2017] [Accepted: 07/11/2017] [Indexed: 01/20/2023]
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Dalapati S, Gu C, Jiang D. Luminescent Porous Polymers Based on Aggregation-Induced Mechanism: Design, Synthesis and Functions. Small 2016; 12:6513-6527. [PMID: 27740717 DOI: 10.1002/smll.201602427] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/26/2016] [Indexed: 05/22/2023]
Abstract
Enormous research efforts are focusing on the design and synthesis of advanced luminescent systems, owing to their diverse capability in scientific studies and technological developments. In particular, fluorescence systems based on aggregation-induced emission (AIE) have emerged to show great potential for sensing, bio-imaging, and optoelectronic applications. Among them, integrating AIE mechanisms to design porous polymers is unique because it enables the combination of porosity and luminescence activity in one molecular skeleton for functional design. In recent years rapid progress in exploring AIE-based porous polymers has developed a new class of luminescent materials that exhibit broad structural diversity, outstanding properties and functions and promising applications. By classifying the structural nature of the skeleton, herein the design principle, synthetic development and structural features of different porous luminescent materials are elucidated, including crystalline covalent organic frameworks (COFs), metal-organic frameworks (MOFs), and amorphous porous organic polymers (POPs). The functional exploration of these luminescent porous polymers are highlighted by emphasizing electronic interplay within the confined nanospace, fundamental issues to be addressed are disclosed, and future directions from chemistry, physics and materials science perspectives are proposed.
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Affiliation(s)
- Sasanka Dalapati
- Field of Environment and Energy, School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, 923-1292, Japan
| | - Cheng Gu
- Field of Environment and Energy, School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, 923-1292, Japan
| | - Donglin Jiang
- Field of Environment and Energy, School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, 923-1292, Japan
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14
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Abstract
Highly luminescent covalent organic frameworks (COFs) are rarely achieved because of the aggregation-caused quenching (ACQ) of π-π stacked layers. Here, we report a general strategy to design highly emissive COFs by introducing an aggregation-induced emission (AIE) mechanism. The integration of AIE-active units into the polygon vertices yields crystalline porous COFs with periodic π-stacked columnar AIE arrays. These columnar AIE π-arrays dominate the luminescence of the COFs, achieve exceptional quantum yield via a synergistic structural locking effect of intralayer covalent bonding and interlayer noncovalent π-π interactions and serve as a highly sensitive sensor to report ammonia down to sub ppm level. Our strategy breaks through the ACQ-based mechanistic limitations of COFs and opens a way to explore highly emissive COF materials.
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Affiliation(s)
- Sasanka Dalapati
- Field of Energy and Environment, School of Materials Science, Japan Advanced Institute of Science and Technology , 1-1 Asahidai, Nomi 923-1292, Japan
| | - Enquan Jin
- Department of Structural Molecular Science, School of Physical Science, SOKENDAI , Hayama, Kanagawa 240-0193, Japan
| | - Matthew Addicoat
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig , Linnéstrasse 2, 04103 Leipzig, Germany
| | - Thomas Heine
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig , Linnéstrasse 2, 04103 Leipzig, Germany
| | - Donglin Jiang
- Field of Energy and Environment, School of Materials Science, Japan Advanced Institute of Science and Technology , 1-1 Asahidai, Nomi 923-1292, Japan
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Dalapati S, Addicoat M, Jin S, Sakurai T, Gao J, Xu H, Irle S, Seki S, Jiang D. Rational design of crystalline supermicroporous covalent organic frameworks with triangular topologies. Nat Commun 2015; 6:7786. [PMID: 26178865 PMCID: PMC4518282 DOI: 10.1038/ncomms8786] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/10/2015] [Indexed: 12/22/2022] Open
Abstract
Covalent organic frameworks (COFs) are an emerging class of highly ordered porous polymers with many potential applications. They are currently designed and synthesized through hexagonal and tetragonal topologies, limiting the access to and exploration of new structures and properties. Here, we report that a triangular topology can be developed for the rational design and synthesis of a new class of COFs. The triangular topology features small pore sizes down to 12 Å, which is among the smallest pores for COFs reported to date, and high π-column densities of up to 0.25 nm−2, which exceeds those of supramolecular columnar π-arrays and other COF materials. These crystalline COFs facilitate π-cloud delocalization and are highly conductive, with a hole mobility that is among the highest reported for COFs and polygraphitic ensembles. Covalent organic frameworks are currently arousing considerable interest due to their desirable properties for a wide range of applications. Here, Jiang et al. report two such materials with triangular topologies which exhibit high hole mobility arising from extensive π-cloud delocalisation.
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Affiliation(s)
- Sasanka Dalapati
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Matthew Addicoat
- Department of Chemistry, WPI-Research Initiative Institute of Transformative Bio-Molecules, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Shangbin Jin
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Tsuneaki Sakurai
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, A4 Kyoto University Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jia Gao
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Hong Xu
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Stephan Irle
- Department of Chemistry, WPI-Research Initiative Institute of Transformative Bio-Molecules, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, A4 Kyoto University Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Donglin Jiang
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
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Jin S, Sakurai T, Kowalczyk T, Dalapati S, Xu F, Wei H, Chen X, Gao J, Seki S, Irle S, Jiang D. Back Cover: Two-Dimensional Tetrathiafulvalene Covalent Organic Frameworks: Towards Latticed Conductive Organic Salts (Chem. Eur. J. 45/2014). Chemistry 2014. [DOI: 10.1002/chem.201490189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Dalapati S, Jana S, Guchhait N. Anion recognition by simple chromogenic and chromo-fluorogenic salicylidene Schiff base or reduced-Schiff base receptors. Spectrochim Acta A Mol Biomol Spectrosc 2014; 129:499-508. [PMID: 24759755 DOI: 10.1016/j.saa.2014.03.090] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 03/03/2014] [Accepted: 03/18/2014] [Indexed: 06/03/2023]
Abstract
This review contains extensive application of anion sensing ability of salicylidene type Schiff bases and their reduced forms having various substituents with respect to phenolic OH group. Some of these molecular systems behave as receptor for recognition or sensing of various anions in organic or aqueous-organic binary solvent mixture as well as in the solid supported test kits. Development of Schiff base or reduced Schiff base receptors for anion recognition event is commonly based on the theory of hydrogen bonding interaction or deprotonation of phenolic -OH group. The process of charge transfer (CT) or inhibition of excited proton transfer (ESIPT) or followed by photo-induced electron transfer (PET) lead to naked-eye color change, UV-vis spectral change, chemical shift in the NMR spectra and fluorescence spectral modifications. In this review we have tried to discuss about the anion sensing properties of Schiff base or reduced Schiff base receptors.
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Affiliation(s)
- Sasanka Dalapati
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India
| | - Sankar Jana
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India
| | - Nikhil Guchhait
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India.
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Jin S, Sakurai T, Kowalczyk T, Dalapati S, Xu F, Wei H, Chen X, Gao J, Seki S, Irle S, Jiang D. Two-dimensional tetrathiafulvalene covalent organic frameworks: towards latticed conductive organic salts. Chemistry 2014; 20:14608-13. [PMID: 24782435 DOI: 10.1002/chem.201402844] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Indexed: 11/07/2022]
Abstract
The construction of a new class of covalent TTF lattice by integrating TTF units into two-dimensional covalent organic frameworks (2D COFs) is reported. We explored a general strategy based on the C2 +C2 topological diagram and applied to the synthesis of microporous and mesoporous TTF COFs. Structural resolutions revealed that both COFs consist of layered lattices with periodic TTF columns and tetragonal open nanochannels. The TTF columns offer predesigned pathways for high-rate hole transport, predominate the HOMO and LUMO levels of the COFs, and are redox active to form organic salts that exhibit enhanced electric conductivity by several orders of magnitude. On the other hand, the linkers between the TTF units play a vital role in determining the carrier mobility and conductivity through the perturbation of 2D sheet conformation and interlayer distance. These results open a way towards designing a new type of TTF materials with stable and predesignable lattice structures for functional exploration.
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Affiliation(s)
- Shangbin Jin
- Department of Materials Molecular Science, Institution for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787 (Japan)
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Ganguly A, Paul BK, Ghosh S, Dalapati S, Guchhait N. Interaction of a potential chloride channel blocker with a model transport protein: a spectroscopic and molecular docking investigation. Phys Chem Chem Phys 2014; 16:8465-75. [DOI: 10.1039/c3cp53843e] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Islam SM, Roy AS, Dalapati S, Saha R, Mondal P, Ghosh K, Chatterjee S, Sarkar K, Guchhait N, Mitra P. Synthesis, crystal structure and spectroscopic studies of a cobalt(III) Schiff base complex and its use as a heterogeneous catalyst for the oxidation reaction under mild condition. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.09.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Affiliation(s)
- Sasanka Dalapati
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Shangbin Jin
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Jia Gao
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Yanhong Xu
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Atsushi Nagai
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Donglin Jiang
- Department of Materials Molecular
Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
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22
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Ray D, Dalapati S, Guchhait N. Spectral properties of a simple azine Schiff base and its sensing ability towards protic environment through hydrogen bonding interaction. Spectrochim Acta A Mol Biomol Spectrosc 2013; 115:219-226. [PMID: 23835054 DOI: 10.1016/j.saa.2013.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/23/2013] [Accepted: 06/04/2013] [Indexed: 06/02/2023]
Abstract
A simple azine linkage containing Schiff base p-N,N-diethylaminobenzaldazine (PDEAB) has been synthesized and its spectroscopic properties have been investigated using steady state absorption and fluorescence measurement. Both the absorption and emission studies indicate that the compound PDEAB forms intermolecular hydrogen bond with protic solvents. The formation of intermolecular hydrogen bond between PDEAB and protic solvents is further verified by Quantum chemical calculation using Density Functional Theory (DFT) (B3LYP/6-31++G(d,p)) and Natural Bond Orbital (NBO) analysis. The non-fluorescent nature (fluorescence off) of PDEAB in aprotic environment can be switched over to a fluorescent system (fluorescence on) in presence of protic solvents and hence this molecule can be used as highly sensitive fluorosensor for protic solvent in aprotic medium like ACN or DOX.
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Affiliation(s)
- Debarati Ray
- Department of Chemistry, University of Calcutta, 92 APC Road, Calcutta 700 009, India
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Ganguly A, Jana S, Ghosh S, Dalapati S, Guchhait N. Solvent modulated photophysics of 9-methyl anthroate: exploring the effect of polarity and hydrogen bonding on the emissive state. Spectrochim Acta A Mol Biomol Spectrosc 2013; 112:237-244. [PMID: 23673242 DOI: 10.1016/j.saa.2013.04.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 04/05/2013] [Accepted: 04/10/2013] [Indexed: 06/02/2023]
Abstract
Photophysical properties of an anthracene derivative 9-methyl anthroate (9-MA) have been investigated using absorption and emission spectroscopy, in combination with quantum chemical calculations. Solvatochromic effects on the Stokes shifted emission band clearly demonstrate the highly polar character of the excited state, which is also supported by the enhancement of dipole moment of the molecule upon photoexcitation. The emission band has been found to be dependent on polarity and hydrogen-bonding ability of the solvents. Multiple linear regression analysis method has been utilized to rationalize the effect of hydrogen bonding interaction on the emissive state, which was further confirmed by the analysis of the non-radiative decay constants and urea induced H-bonding disruption study. The experimental results correlate well with theoretical predictions obtained via density functional theory (DFT).
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Affiliation(s)
- Aniruddha Ganguly
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
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24
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Jana S, Dalapati S, Ghosh S, Guchhait N. Excited state intramolecular charge transfer process in 5-(4-dimethylamino-phenyl)-penta-2,4-dienoic acid ethyl ester and effect of acceptor functional groups. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.04.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jana S, Dalapati S, Guchhait N. Excited State Intramolecular Charge Transfer Suppressed Proton Transfer Process in 4-(Diethylamino)-2-hydroxybenzaldehyde. J Phys Chem A 2013; 117:4367-76. [DOI: 10.1021/jp3120463] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sankar Jana
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road,
Kolkata-700009,
India
| | - Sasanka Dalapati
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road,
Kolkata-700009,
India
| | - Nikhil Guchhait
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road,
Kolkata-700009,
India
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Dalapati S, Alam MA, Jana S, Karmakar S, Guchhait N. "Test kit" for detection of biologically important anions: a salicylidene-hydrazine based Schiff base. Spectrochim Acta A Mol Biomol Spectrosc 2013; 102:314-318. [PMID: 23220673 DOI: 10.1016/j.saa.2012.10.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/15/2012] [Accepted: 10/23/2012] [Indexed: 06/01/2023]
Abstract
Test paper coated with Schiff base [(N,N(/)-bis(5-nitro-salicylidene)hydrazine] receptor 1 (host) can selectively detect fluoride and acetate ions (guest) by developing yellow color which can be detected by naked-eye both in aqueous-acetonitrile solution and in solid supported test kit. UV-vis spectral analysis shows that the absorption peaks at 288 and 345 nm of receptor 1 gradually decrease its initial intensity and new red shifted absorption bands at 397 nm and 455 nm gradually appear upon addition of increasing amount of F(-) and AcO(-) ions over several tested anions such as H(2)PO(4)(-), Cl(-), Br(-), I(-), NO(3)(-), NO(2)(-), HSO(4)(-), HSO(3)(-), and ClO(4)(-) in aqueous-acetonitrile solvent. The colorimetric test results and UV-vis spectral analysis are in well agreement with (1)H NMR titration results in d(6)-DMSO solvent. The receptor 1 forms 1:2 stable complexes with F(-) and AcO(-) ions. However, similar kind of observation obtained from UV-vis titrations in presence of AcOH corresponds to 1:1 complexation ratio indicating the formation of H-bonding interaction between the receptor and anions (F(-) and AcO(-) ions). So, the observed 1:2 complexation ratio can only be explained on the basis of deprotonation (∼1 eqv.) and H-bonding (∼1 eqv.) interactions [1]. The ratiometric analysis of host-guest complexes corroborates well with the proposed theoretical model optimization at Density Functional Theory (DFT) level.
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Affiliation(s)
- Sasanka Dalapati
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
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Jana S, Dalapati S, Guchhait N. Functional group induced excited state intramolecular proton transfer process in 4-amino-2-methylsulfanyl-pyrimidine-5-carboxylic acid ethyl ester: a combined spectroscopic and density functional theory study. Photochem Photobiol Sci 2013; 12:1636-48. [DOI: 10.1039/c3pp50010a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jana S, Dalapati S, Guchhait N. Proton transfer assisted charge transfer phenomena in photochromic Schiff bases and effect of -NEt2 groups to the anil Schiff bases. J Phys Chem A 2012; 116:10948-58. [PMID: 23098054 DOI: 10.1021/jp3079698] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photochromic Schiff bases 5-diethylamino-2-[(4-diethylamino-benzylidene)-hydrazonomethyl]-phenol (DDBHP) and N,N'-bis(4-N,N-diethylaminosalisalidene) hydrazine (DEASH) with both the proton and charge transfer moieties have been synthesized, and their photophysical properties such as excited state intramolecular charge transfer (ICT) and proton transfer (ESIPT) processes have been reported on the basis of steady-state and time-resolved spectral measurement in various solvents. The ground-state six-membered intramolecular hydrogen bonding network at the proton transfer site accelerates the ESIPT process for these compounds. Both the compounds show large Stokes-shifted emission bands for proton transfer and charge transfer processes. The hydrogen bonding solvents play a crucial role in these photophysical processes. Excited-state dipole moment of DDBHP and DEASH calculated by the solvatochromic method supports the polar character of the charge transfer excited state. Introduction of -NEt(2) groups to the reported salicylaldehyde azine (SAA) Schiff base results an increase in fluorescence lifetime from femtosecond to picosecond time scale for the proton transfer process.
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Affiliation(s)
- Sankar Jana
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
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Dalapati S, Saha R, Jana S, Patra AK, Bhaumik A, Kumar S, Guchhait N. A Multifunctional Porous Organic Schottky Barrier Diode. Angew Chem Int Ed Engl 2012; 51:12534-7. [DOI: 10.1002/anie.201205439] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/29/2012] [Indexed: 11/08/2022]
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Dalapati S, Saha R, Jana S, Patra AK, Bhaumik A, Kumar S, Guchhait N. A Multifunctional Porous Organic Schottky Barrier Diode. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205439] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Jana S, Dalapati S, Ghosh S, Guchhait N. Potential charge transfer probe induced conformational changes of model plasma protein human serum albumin: Spectroscopic, molecular docking, and molecular dynamics simulation study. Biopolymers 2012; 97:766-77. [DOI: 10.1002/bip.22057] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Jana S, Dalapati S, Ghosh S, Guchhait N. Study of microheterogeneous environment of protein Human Serum Albumin by an extrinsic fluorescent reporter: A spectroscopic study in combination with Molecular Docking and Molecular Dynamics Simulation. Journal of Photochemistry and Photobiology B: Biology 2012; 112:48-58. [DOI: 10.1016/j.jphotobiol.2012.04.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 03/30/2012] [Accepted: 04/06/2012] [Indexed: 10/28/2022]
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Jana S, Dalapati S, Alam MA, Guchhait N. Spectroscopic, colorimetric and theoretical investigation of salicylidene hydrazine based reduced Schiff base and its application towards biologically important anions. Spectrochim Acta A Mol Biomol Spectrosc 2012; 92:131-136. [PMID: 22446759 DOI: 10.1016/j.saa.2012.02.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 02/06/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
A reduced Schiff base anionic receptor 1 [N,N'-bis-(2-hydroxy-5-nitro-benzyl)hydrazine] has been synthesized, characterized and reported as a selective chromogenic receptor for fluoride, acetate and phosphate anions over the other tested anions such as chloride, bromide, iodide and hydrogensulphite. Colorimetric naked-eye detection and UV-vis absorption spectroscopic techniques were used to distinguish the recognition behaviours towards various anions. The receptor-anion complexation mainly occurs via hydrogen bonding interactions which facile to generate the charge transfer band in the UV-vis spectra and cause large bathochromic shift as well as naked-eye colour change. Complexation stoichiometry, binding constant and free energy change due to complex formation were determined from Benesi-Hildebrand plot. The binding constant and the free energy change values are well interactive for spontaneous complexation. The experimental results have been correlated with the theoretical calculations using B3LYP hybrid functional and 6-311++G(d,p) basis set for both the receptor and complex by Density Functional Theory (DFT) method.
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Affiliation(s)
- Sankar Jana
- Department of Chemistry, University of Calcutta, Kolkata, India
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Affiliation(s)
- Sasanka Dalapati
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India, Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India, and Department of Chemistry, Aliah University, Sector-V, Saltlake, Kolkata 700 091, India
| | - Sankar Jana
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India, Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India, and Department of Chemistry, Aliah University, Sector-V, Saltlake, Kolkata 700 091, India
| | - Rajat Saha
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India, Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India, and Department of Chemistry, Aliah University, Sector-V, Saltlake, Kolkata 700 091, India
| | - Md. Akhtarul Alam
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India, Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India, and Department of Chemistry, Aliah University, Sector-V, Saltlake, Kolkata 700 091, India
| | - Nikhil Guchhait
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India, Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India, and Department of Chemistry, Aliah University, Sector-V, Saltlake, Kolkata 700 091, India
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Jana S, Dalapati S, Alam MA, Guchhait N. Fluorescent chemosensor for Zn(II) ion by ratiometric displacement of Cd(II) ion: A spectroscopic study and DFT calculation. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.04.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Jana S, Dalapati S, Ghosh S, Guchhait N. Binding interaction between plasma protein bovine serum albumin and flexible charge transfer fluorophore: A spectroscopic study in combination with molecular docking and molecular dynamics simulation. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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37
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Dalapati S, Alam MA, Jana S, Saha R, Biswas S, Guchhait N. A Molecular Lock and Key: “Unlocked-Locked” Conformational Switching of a Receptor by Anions. Chempluschem 2012. [DOI: 10.1002/cplu.201100036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Dalapati S, Akhtarul Alam M, Saha R, Jana S, Guchhait N. An efficient size-selective anion binding cleft-shaped receptor: A novel [F2(H2O)3]2−cluster with pseudo-encapsulated F−ion. CrystEngComm 2012. [DOI: 10.1039/c2ce06286k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Jana S, Ghosh S, Dalapati S, Guchhait N. Exploring structural change of protein bovine serum albumin by external perturbation using extrinsic fluorescence probe: spectroscopic measurement, molecular docking and molecular dynamics simulation. Photochem Photobiol Sci 2012; 11:323-32. [DOI: 10.1039/c1pp05180f] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Jana S, Dalapati S, Ghosh S, Kar S, Guchhait N. Excited State Charge Transfer reaction with dual emission from 5-(4-dimethylamino-phenyl)-penta-2,4-dienenitrile: Spectral measurement and theoretical density functional theory calculation. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.05.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dalapati S, Jana S, Guchhait N. Colorimetric “Naked-eye” Highly Selective Detection of Cu(II) Ion by a Simple Chemosensor: An Experimental and Theoretical Modeling. CHEM LETT 2011. [DOI: 10.1246/cl.2011.279] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Jana S, Ghosh S, Dalapati S, Kar S, Guchhait N. Photoinduced intramolecular charge transfer phenomena in 5-(4-dimethylamino-phenyl)-penta-2,4-dienoic acid. Spectrochim Acta A Mol Biomol Spectrosc 2011; 78:463-468. [PMID: 21163692 DOI: 10.1016/j.saa.2010.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 10/20/2010] [Accepted: 11/15/2010] [Indexed: 05/28/2023]
Abstract
A donor acceptor substituted aromatic system 5-(4-dimethylamino-phenyl)-penta-2,4-dienoic acid (DMAPPDA) has been synthesized and its spectral properties have been explored on the basis of steady state absorption and fluorescence spectroscopy. Spectral features point largely towards a possible occurrence of photoinduced intramolecular charge transfer process from the donor NMe2 group to the acceptor acid group. Solvent dependency of the large Stokes' shifted emission band and the calculated large excited state dipole moment support the polar character of the charge transfer excited state. Quantum yield calculations and effect of addition of acid and base on the steady state spectra were also performed to further scrutinize the excited state CT character.
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Affiliation(s)
- Sankar Jana
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India
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