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Jaswal A, Swami S, Saini A. Mercury (Hg 2+) Sensing Using Coumarin-Derived Fluorescent Chemo-Sensors: An Intuitive Development from 2015 to 2023. J Fluoresc 2024:10.1007/s10895-024-03889-1. [PMID: 39126606 DOI: 10.1007/s10895-024-03889-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Mercury is known as a highly toxic metal that is poisonous even if present in a trace amount. Generally, it enters in the food chain (especially fish) and water resources via different pathways and leads to harmful effects. Owing to the detrimental nature of the metal, traditionally several methods were employed by researchers for regular monitoring of the mercury metal ions. However, these methods are associated with many limitations like high cost of technical expertise, and intricacy of the detection procedure. So, using these methods to detect mercury ions in real time is challenging. Therefore, in recent years fluorescent-based analytical tools emerged rapidly. Among the various fluorescent organic scaffolds, coumarin has been scorching, owing to quick response, light stability, high sensitivity, good selectivity, excellent fluorescence intensity, and fluorescence quantum yield. This review provides a deep dive into the coumarin-derived chemo-sensors development throughout 2015-2023. We anticipate that the review will assist to broad scientific community as a reference document to design more interesting sensors.
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Affiliation(s)
- Ansh Jaswal
- Department of Chemistry, Chandigarh University, NH-05, Ludhiana - Chandigarh State Hwy, Mohali, Punjab, India, 140413
| | - Suman Swami
- Department of Chemistry, Chandigarh University, NH-05, Ludhiana - Chandigarh State Hwy, Mohali, Punjab, India, 140413.
| | - Ajay Saini
- Central Analytical Facilities, Manipal University Jaipur, Jaipur-Ajmer Express Highway, Dehmi Kalan, Near GVK Toll Plaza, Jaipur, Rajasthan, India, 303007
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2
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Szychta K, Koszarna B, Banasiewicz M, Sobolewski A, O’Mari O, Clark JA, Vullev VI, Barboza CA, Gryko DT. Conformation of the Ester Group Governs the Photophysics of Highly Polarized Benzo[ g]coumarins. JACS AU 2023; 3:1918-1930. [PMID: 37502148 PMCID: PMC10369411 DOI: 10.1021/jacsau.3c00169] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 07/29/2023]
Abstract
Photosensitizers that display "unusual" emission from upper electronically excited states offer possibilities for initiating higher-energy processes than what the governing Kasha's rule postulates. Achieving conditions for dual fluorescence from multiple states of the same species requires molecular design and conditions that favorably tune the excited-state dynamics. Herein, we switch the position of the electron-donating NMe2 group around the core of benzo[g]coumarins (BgCoum) and tune the electronic coupling and the charge-transfer character of the fluorescent excited states. For solvents with intermediate polarity, three of the four regioisomers exhibit fluorescence from two different excited states with bands that are well separated in the visible and the near-infrared spectral regions. Computational analysis, employing ab initio methods, reveals that the orientation of an ester on the pyrone ring produces two conformers responsible for the observed dual fluorescence. Studies with solid solvating media, which restricts the conformational degrees of freedom, concur with the computational findings. These results demonstrate how "seemingly inconsequential" auxiliary substituents, such as the esters on the pyrone coumarin rings, can have profound effects leading to "anti-Kasha" photophysical behavior important for molecular photonics, materials engineering, and solar-energy science.
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Affiliation(s)
- Kamil Szychta
- Institute
of Organic Chemistry of Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Beata Koszarna
- Institute
of Organic Chemistry of Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Marzena Banasiewicz
- Institute
of Physics of Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Andrzej Sobolewski
- Institute
of Physics of Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Omar O’Mari
- Department
of Bioengineering, University of California, Riverside, California 92521, United States
| | - John A. Clark
- Department
of Bioengineering, University of California, Riverside, California 92521, United States
| | - Valentine I. Vullev
- Department
of Bioengineering, University of California, Riverside, California 92521, United States
- Department
of Chemistry, Department of Biochemistry, and Materials Science and
Engineering Program, University of California, Riverside, California 92521, United States
| | - Cristina A. Barboza
- Institute
of Physics of Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
- Department
of Physical and Quantum Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław 50-370, Poland
| | - Daniel T. Gryko
- Institute
of Organic Chemistry of Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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3
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Shaydyuk Y, Bashmakova NV, Klishevich GV, Dmytruk AM, Kachkovsky OD, Kuziv IB, Dubey IY, Belfield KD, Bondar MV. Nature of Linear Spectral Properties and Fast Relaxations in the Excited States and Two-Photon Absorption Efficiency of 3-Thiazolyl and 3-Phenyltiazolyl Coumarin Derivatives. ACS OMEGA 2023; 8:11564-11573. [PMID: 37008079 PMCID: PMC10061630 DOI: 10.1021/acsomega.3c00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Coumarin-based fluorescent agents play an important role in the manifold fundamental scientific and technological areas and need to be carefully studied. In this research, linear photophysics, photochemistry, fast vibronic relaxations, and two-photon absorption (2PA) of the coumarin derivatives, methyl 4-[2-(7-methoxy-2-oxo-chromen-3-yl)thiazol-4-yl]butanoate (1) and methyl 4-[4-[2-(7-methoxy-2-oxo-chromen-3-yl)thiazol-4-yl]phenoxy]butanoate (2), were comprehensively analyzed using stationary and time-resolved spectroscopic techniques, along with quantum-chemical calculations. The steady-state one-photon absorption, fluorescence emission, and excitation anisotropy spectra, as well as 3D fluorescence maps of 3-hetarylcoumarins 1 and 2 were obtained at room temperature in solvents of different polarities. The nature of relatively large Stokes shifts (∼4000-6000 cm-1), specific solvatochromic behavior, weak electronic π → π* transitions, and adherence to Kasha's rule were revealed. The photochemical stability of 1 and 2 was explored quantitatively, and values of photodecomposition quantum yields, on the order of ∼10-4, were determined. A femtosecond transient absorption pump-probe technique was used for the investigation of fast vibronic relaxation and excited-state absorption processes in 1 and 2, while the possibility of efficient optical gain was shown for 1 in acetonitrile. The degenerate 2PA spectra of 1 and 2 were measured by an open aperture z-scan method, and the maximum 2PA cross-sections of ∼300 GM were obtained. The electronic nature of the hetaryl coumarins was analyzed by quantum-chemical calculations using DFT/TD-DFT level of theory and was found to be in good agreement with experimental data.
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Affiliation(s)
- Yevgeniy
O. Shaydyuk
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki, 46, Kyiv 03028, Ukraine
| | - Nataliia V. Bashmakova
- Taras
Shevchenko National University of Kyiv, Volodymyrska Street, 60, Kyiv 01601, Ukraine
| | - George V. Klishevich
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki, 46, Kyiv 03028, Ukraine
| | - Andriy M. Dmytruk
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki, 46, Kyiv 03028, Ukraine
| | - Olexiy D. Kachkovsky
- V.P.
Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the
NAS of Ukraine, Murmanskaya
Street, 1, Kyiv 02660, Ukraine
| | - Iaroslav B. Kuziv
- Institute
of Molecular Biology and Genetics of the NAS of Ukraine, Zabolotnogo Street, 150, Kyiv 03141, Ukraine
| | - Igor Ya. Dubey
- Institute
of Molecular Biology and Genetics of the NAS of Ukraine, Zabolotnogo Street, 150, Kyiv 03141, Ukraine
| | - Kevin D. Belfield
- Department
of Chemistry and Environmental Science, College of Science and Liberal
Arts, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Mykhailo V. Bondar
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki, 46, Kyiv 03028, Ukraine
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Nikolaeva OG, Popova OS, Dubonosova IV, Karlutova OY, Dubonosov AD, Bren VA, Minkin VI. Spectral-Luminescent and Ionochromic Properties of Azomethine Imine-Coumarin Conjugates. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222050139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Synthesis, Optical Characterization in Solution and Solid-State, and DFT Calculations of 3-Acetyl and 3-(1'-(2'-Phenylhydrazono)ethyl)-coumarin-(7)-substituted Derivatives. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123677. [PMID: 35744802 PMCID: PMC9227197 DOI: 10.3390/molecules27123677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
Intramolecular charge transfer (ICT) effects are responsible for the photoluminescent properties of coumarins. Hence, optical properties with different applications can be obtained by ICT modulation. Herein, four 3-acetyl-2H-chromen-2-ones (1a–d) and their corresponding fluorescent hybrids 3- (phenylhydrazone)-chromen-2-ones (2a–d) were synthesized in 74–65% yields. The UV-Vis data were in the 295–428 nm range. The emission depends on the substituent in position C-7 bearing electron-donating groups. Compounds 1b–d showed good optical properties due to the D-π-A structural arrangement. In compounds 2a–d, there is a quenching effect of fluorescence in solution. However, in the solid, an increase is shown due to an aggregation-induced emission (AIE) effect given by the rotational restraints and stacking in the crystal. Computational calculations of the HOMO-LUMO orbitals indicate high absorbance and emission values of the molecules, and gap values represent the bathochromic effect and the electronic efficiency of the compounds. Compounds 1a–d and 2a–d are good candidates for optical applications, such as OLEDs, organic solar cells, or fluorescence markers.
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Soni R, Soman SS. Metal free synthesis of Coumarin containing hetero[n]helicene like molecules with TICT and AIE propertie. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rina Soni
- The Maharaja Sayajirao University of Baroda Faculty of Science Chemistry Sayajigunj 390002 Vadodara INDIA
| | - Shubhangi S Soman
- The Maharaja Sayajirao University of Baroda Faculty of Science Chemistry INDIA
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7
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Ueda M, Kokubun M, Mazaki Y. Synthesis, structures, and properties of triskelion-shaped fluorophores bearing coumarins with nitrogen-containing donor groups. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masafumi Ueda
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1, Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373
| | - Mirai Kokubun
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1, Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1, Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373
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8
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Affiliation(s)
- Abhinav Kumar
- Department of Chemistry Indian Institute of Technology Madras Chennai 600 036 Tamil Nadu India
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9
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Nikolaeva OG, Karlutova OY, Dubonosov AD, Bren VA, Minkin VI. Polyfunctional Ionochromic 1,3-Dihydroxy-6-oxo-6H-benzo[c]chromene-2,4-dicarbaldehyde Aroylhydrazones. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220120014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Ueda M, Kokubun M, Mazaki Y. Triskelion‐Shaped π‐Luminophores Bearing Coumarin: Syntheses, Structures, and Luminescence Properties. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masafumi Ueda
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Mirai Kokubun
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
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12
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Cuevas JM, Seoane-Rivero R, Navarro R, Marcos-Fernández Á. Coumarins into Polyurethanes for Smart and Functional Materials. Polymers (Basel) 2020; 12:polym12030630. [PMID: 32164198 PMCID: PMC7182826 DOI: 10.3390/polym12030630] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 12/11/2022] Open
Abstract
Polyurethanes are of undoubted interest for the scientific community and the industry. Their outstanding versatility from tailor-made structures turns them into major polymers for use in a wide range of different applications. As with other polymers, new, emerging molecules and monomers with specific attributes can provide new functions and capabilities to polyurethanes. Natural and synthetic coumarin and its derivatives are characterised by interesting biological, photophysical and photochemical properties. Then, the polyurethanes can exploit those features of many coumarins which are present in their composition to achieve new functions and performances. This article reviews the developments in the proper use of the special properties of coumarins in polyurethanes to produce functional and smart materials that can be suitable for new specific applications.
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Affiliation(s)
- José María Cuevas
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, edificio 202, E-48170 Zamudio, Spain;
- Correspondence: (J.M.C.); (R.N.)
| | - Rubén Seoane-Rivero
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, edificio 202, E-48170 Zamudio, Spain;
| | - Rodrigo Navarro
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
- Correspondence: (J.M.C.); (R.N.)
| | - Ángel Marcos-Fernández
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
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13
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Nikolaeva OG, Karlutova OY, Dubonosov AD, Bren VA, Minkin VI. Synthesis and Luminescence and Ionochromic Properties of 9-Hydroxy-1-methyl-3-oxo-3H-benzo[f]chromene8-carbaldehyde Imines and Hydrazones. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s107036322002005x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Xue W, Wang D, Li C, Zhai Z, Wang T, Liang Y, Zhang Z. π-Expanded Coumarins: One-Pot Photo Synthesis of 5H-Benzo[12,1]tetrapheno[7,6,5-cde]chromen-5-ones and Photophysical Properties. J Org Chem 2020; 85:3689-3698. [DOI: 10.1021/acs.joc.9b03327] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wenhao Xue
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Ding Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Chenyu Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Zheng Zhai
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Tao Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Yong Liang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
| | - Zunting Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, People’s Republic of China
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15
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Cisse L, Djande A, Capo‐Chichi M, Khonté A, Bakhoum J, Delattre F, Yoda J, Saba A, Tine A, Aaron J. Quantitative study of the substituent effects on the electronic absorption and fluorescence spectra of coumarins. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lamine Cisse
- Laboratoire de Photochimie et d'Analyse, Faculté des Sciences et TechniquesUniversité Cheikh Anta DIOP Dakar Sénégal
| | - Abdoulaye Djande
- Laboratoire de Chimie Bio‐Organique et de PhytochimieUniversité de Ouagadougou Ouagadougou Burkina Faso
| | - Martine Capo‐Chichi
- Laboratoire de Physique des Matériaux Divisés et Interfaces, CNRS‐UMR 810Université Paris‐Est Marne‐la‐Vallée Marne la Vallée France
| | - Abdourahmane Khonté
- Laboratoire de Photochimie et d'Analyse, Faculté des Sciences et TechniquesUniversité Cheikh Anta DIOP Dakar Sénégal
| | - Jean‐Pierre Bakhoum
- Laboratoire de Photochimie et d'Analyse, Faculté des Sciences et TechniquesUniversité Cheikh Anta DIOP Dakar Sénégal
| | - François Delattre
- Unité de Chimie Environnementale et Interactions sur le Vivant, EA4492Université du Littoral Côte d'Opale Dunkerque France
| | - Jules Yoda
- Laboratoire de Chimie Bio‐Organique et de PhytochimieUniversité de Ouagadougou Ouagadougou Burkina Faso
| | - Adama Saba
- Laboratoire de Chimie Bio‐Organique et de PhytochimieUniversité de Ouagadougou Ouagadougou Burkina Faso
| | - Alphonse Tine
- Laboratoire de Photochimie et d'Analyse, Faculté des Sciences et TechniquesUniversité Cheikh Anta DIOP Dakar Sénégal
| | - Jean‐Jacques Aaron
- Laboratoire Géomatériaux et Environnement (LGE)Université Paris‐Est Marne‐la‐Vallée Marne‐la‐Vallée France
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16
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Kielesiński Ł, Gryko DT, Sobolewski AL, Morawski O. The Interplay between Solvation and Stacking of Aromatic Rings Governs Bright and Dark Sites of Benzo[g]coumarins. Chemistry 2019; 25:15305-15314. [PMID: 31523856 DOI: 10.1002/chem.201903018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/27/2019] [Indexed: 11/06/2022]
Abstract
Coumarins are classic, strongly polarized fluorophores with multiple applications, and significant efforts have been put into modifying their emission characteristics and elucidating their photophysics. Expecting that π-expansion of these donor-acceptor chromophores could modify their ground- and excited-state characteristics, the authors performed combined, detailed photophysical and computational studies of linearly π-expanded coumarins, that is, 8-dialkylamino-3-carboxyalkyl-benzo[g]coumarins. The investigation led to the conclusion that emission is only possible thanks to the stabilizing effect of the solvent and that breaking of the lactone ring leads to the conical intersection with the ground state and induces the radiationless decay of the electronic excitation. Aiming at the fine-tuning the excited state properties through the construction of covalently linked dye assemblies, the authors designed and synthesized a new bis(benzo[g]coumarin), built from two similar moieties that exhibit different degrees of polarization due to the electron donor at position 8: one possesses a dialkylamino, and the other a weaker amide donor. Comprehensive studies have shown that the observed weak fluorescence of the system is the result of the interplay between the solvation-induced separation of the benzo[g]coumarin moieties, which stabilizes the emitting locally excited singlet state and the π-stacking interactions, favoring their sandwiched orientation and leading to the non-emissive charge-transfer state.
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Affiliation(s)
- Łukasz Kielesiński
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland.,Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Andrzej L Sobolewski
- Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
| | - Olaf Morawski
- Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
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17
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Nitisha, Venkatakrishnan P. Accessing [ g]-Face π-Expanded Fluorescent Coumarins by Scholl Cyclization. J Org Chem 2019; 84:10679-10689. [PMID: 31429564 DOI: 10.1021/acs.joc.9b01223] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
[g]-Face π-expanded coumarins are synthesized by employing the Scholl cyclization method. These new arene-annulated dipolar coumarins display interesting absorption and fluorescent properties. The large Stokes shifts, tuneable fluorescent quantum yields, and high photostability reveal promise in bioimaging application.
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Affiliation(s)
- Nitisha
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , Tamil Nadu , India
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18
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Giri RR, Brahmbhatt DI. A Convenient Synthesis of Bipyrido‐Fused Coumarins and Their Biological Evaluation. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rakesh R. Giri
- Department of ChemistryS.P.T. Arts and Science College Godhra 389001 Gujarat India
| | - Dinkar I. Brahmbhatt
- Department of ChemistrySardar Patel University Vallabh Vidyanagar 388120 Gujarat India
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19
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Węcławski MK, Deperasińska I, Banasiewicz M, Young DC, Leniak A, Gryko DT. Building Molecular Complexity from Quinizarin: Conjoined Coumarins and Coronene Analogs. Chem Asian J 2019; 14:1763-1770. [PMID: 30022613 DOI: 10.1002/asia.201800757] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/08/2018] [Indexed: 12/20/2022]
Abstract
The double Knoevenagel condensation of 1,4-dibenzoyloxyanthraquinone with methyl esters of arylacetic acids affords a series of compounds based upon a previously unknown 1,8-dioxa-benzo[e]pyrene-2,7-dione heterocyclic core. The aryl groups incorporated in the 3- and 6-positions can be oxidatively coupled to the π-expanded backbone to produce a further new heterocyclic core: 1,10-dioxa-dibenzo[dj]coronene-2,9-dione. The intriguing optical properties of these π-expanded coumarin derivatives are discussed and rationalized through quantum chemical calculations. The broad absorption bands of 1,8-dioxa-benzo[e]pyrene-2,7-dione-based dyes are attributed to both HOMO-1→LUMO and HOMO→LUMO transitions, which have a similar energy. Weakly coupled electron-donating aryl substituents result in a moderate bathochromic shift of both the absorption and emission by 30-60 nm in toluene. The emissive properties of these compounds are in part determined by the oscillator strength of the main transition, lifetimes of the excited state, and by the energy match of the excited state with a triplet state of a similar energy. The 1,10-dioxa-dibenzo[dj]coronene-2,9-dione displays a much smaller Stokes shift, yet a markedly increased fluorescence quantum yield of 90 % owing to the increased rigidity compared with the 1,8-dioxa-benzo[e]pyrene-2,7-dione core.
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Affiliation(s)
- Marek K Węcławski
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Irena Deperasińska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668, Warsaw, Poland
| | - Marzena Banasiewicz
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668, Warsaw, Poland
| | - David C Young
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Arkadiusz Leniak
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organc Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
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Synthesis of novel substituted 3-(4-((1H-benzo[d]imidazol-2-ylthio)methyl)-1-phenyl-1H-pyrazol-3-yl)-2H-chromen-2-ones: various approaches. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3397-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Synthesis of isomeric coumarin-fluorene hybrids by photocyclization and the photophysical features. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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