1
|
Kumar V, Kaur P, Singh K. Julolidine based red emitting ESIPT/AIE active material showing luminescence beyond excimer emission: An "on-off" emission response to Cu 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122239. [PMID: 36563439 DOI: 10.1016/j.saa.2022.122239] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/06/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
A new julolidine-fluorene based excited state intramolecular proton transfer (ESIPT)/aggregate induced emission (AIE) active Schiff-base (JDF) has been synthesized and evaluated for its photophysical properties in solution and aggregated/solid states. The correlation between the emission behavior and the solid state crystal packing structure revealed the interplay of ESIPT coupled excimer reaction occurring in the solid state, which is one of the rare examples reported so far. For a comprehensive comparison, we synthesized a non-ESIPT methyl derivative (JDF-Me) of JDF capable of showing excimer emission only in the solid state. Further, JDF exhibits normal as well as keto emission in solution, upon addition of water, its poor solvent, that promotes aggregation, the fluorescence emission shows the preponderance of the excimer band in the low energy region. It was also interesting to note that in the solid state (thin films), JDF shows emission beyond the excimer emission, which is wavelength dependent. This is attributed to the formation of diverse clusters leading to the extended delocalization beyond excimers, and represents a clustering-triggered emission ascribing bright red color to the solid JDF. Such mélange of emission characteristics of JDF are responsible for the multicolor emission covering a broad range of electromagnetic spectrum, which is demonstrated by the confocal microscopy images of the JDF recorded in different states. Further, in its aggregated state, JDF recognized Cu2+ ions, selectively, manifested in the form of emission quenching via the interaction of Cu2+ ions with the oxygen and nitrogen atoms of JDF inhibiting the excimer formation.
Collapse
Affiliation(s)
- Virendra Kumar
- Department of Chemistry, Centre of Advanced Study, Guru Nanak Dev University, Amritsar 143005, India
| | - Paramjit Kaur
- Department of Chemistry, Centre of Advanced Study, Guru Nanak Dev University, Amritsar 143005, India.
| | - Kamaljit Singh
- Department of Chemistry, Centre of Advanced Study, Guru Nanak Dev University, Amritsar 143005, India.
| |
Collapse
|
2
|
Lee J, Shin P, Chou PT, Joo T. Excited State Intramolecular Proton Transfer Dynamics of Derivatives of the Green Fluorescent Protein Chromophore. Int J Mol Sci 2023; 24:ijms24043448. [PMID: 36834871 PMCID: PMC9962057 DOI: 10.3390/ijms24043448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/04/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
Excited state intramolecular proton transfer (ESIPT) dynamics of the o-hydroxy analogs of the green fluorescent protein (GFP) chromophore have been investigated by time-resolved spectroscopies and theoretical calculations. These molecules comprise an excellent system to investigate the effect of electronic properties on the energetics and dynamics of ESIPT and to realize applications in photonics. Time-resolved fluorescence with high enough resolution was employed to record the dynamics and the nuclear wave packets in the excited product state exclusively in conjunction with quantum chemical methods. The ESIPT are ultrafast occurring in 30 fs for the compounds employed in this work. Although the ESIPT rates are not affected by the electronic properties of the substituents suggesting barrierless reaction, the energetics, their structures, subsequent dynamics following ESIPT, and possibly the product species are distinct. The results attest that fine tuning of the electronic properties of the compounds may modify the molecular dynamics of ESIPT and subsequent structural relaxation to achieve brighter emitters with broad tuning capabilities.
Collapse
Affiliation(s)
- Junghwa Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Pyoungsik Shin
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan, China
- Correspondence: (P.-T.C.); (T.J.)
| | - Taiha Joo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Correspondence: (P.-T.C.); (T.J.)
| |
Collapse
|
3
|
Kovács E, Cseri L, Jancsó A, Terényi F, Fülöp A, Rózsa B, Galbács G, Mucsi Z. Synthesis and Fluorescence Mechanism of the Aminoimidazolone Analogues of the Green Fluorescent Protein: Towards Advanced Dyes with Enhanced Stokes Shift, Quantum Yield and Two‐Photon Absorption. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ervin Kovács
- Department of Chemistry Femtonics Inc. Tűzoltó u. 58 1094 Budapest Hungary
- Institute of Materials and Environmental Chemistry Research Centre for Natural Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Levente Cseri
- Department of Chemistry Femtonics Inc. Tűzoltó u. 58 1094 Budapest Hungary
- Department of Chemical Engineering & Analytical Science The University of Manchester The Mill, Sackville Street Manchester M1 3BB United Kingdom
| | - Attila Jancsó
- Department of Inorganic and Analytical Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
| | - Ferenc Terényi
- Department of Inorganic and Analytical Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
| | - Anna Fülöp
- Department of Chemistry Femtonics Inc. Tűzoltó u. 58 1094 Budapest Hungary
| | - Balázs Rózsa
- Two-Photon Measurement Technology Research Group The Faculty of Information Technology Pázmány Péter Catholic University Práter u. 50/A Budapest 1083 Hungary
- Laboratory of 3D Functional Imaging of Neuronal Networks and Dendritic Integration Institute of Experimental Medicine Szigony utca 43 Budapest 1083 Hungary
| | - Gábor Galbács
- Department of Inorganic and Analytical Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
| | - Zoltán Mucsi
- Department of Chemistry Femtonics Inc. Tűzoltó u. 58 1094 Budapest Hungary
- Institute of Chemistry Faculty of Materials Science and Engineering University of Miskolc Egyetem út 1 Miskolc 3515 Hungary
| |
Collapse
|
4
|
Bhattacharya B, Roy D, Dey S, Puthuvakkal A, Bhunia S, Mondal S, Chowdhury R, Bhattacharya M, Mandal M, Manoj K, Mandal PK, Reddy CM. Mechanical‐Bending‐Induced Fluorescence Enhancement in Plastically Flexible Crystals of a GFP Chromophore Analogue. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007760] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Bhattacharya
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Debjit Roy
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Somnath Dey
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Anisha Puthuvakkal
- Photosciences and Photonics Chemical Sciences and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
| | - Surojit Bhunia
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
- Centre for Advanced Functional Materials (CAFM) Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Saikat Mondal
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
- Centre for Advanced Functional Materials (CAFM) Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Rituparno Chowdhury
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Manjima Bhattacharya
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Mrinal Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - Kochunnoonny Manoj
- Photosciences and Photonics Chemical Sciences and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
| | - Prasun K. Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
- Centre for Advanced Functional Materials (CAFM) Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| | - C. Malla Reddy
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
- Centre for Advanced Functional Materials (CAFM) Indian Institute of Science Education and Research (IISER) Kolkata 741246 Nadia, West Bengal India
| |
Collapse
|
5
|
Bhattacharya B, Roy D, Dey S, Puthuvakkal A, Bhunia S, Mondal S, Chowdhury R, Bhattacharya M, Mandal M, Manoj K, Mandal PK, Reddy CM. Mechanical-Bending-Induced Fluorescence Enhancement in Plastically Flexible Crystals of a GFP Chromophore Analogue. Angew Chem Int Ed Engl 2020; 59:19878-19883. [PMID: 32667123 DOI: 10.1002/anie.202007760] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Indexed: 01/25/2023]
Abstract
Single crystals of optoelectronic materials that respond to external stimuli, such as mechanical, light, or heat, are immensely attractive for next generation smart materials. Here we report single crystals of a green fluorescent protein (GFP) chromophore analogue with irreversible mechanical bending and associated unusual enhancement of the fluorescence, which is attributed to the strained molecular packing in the perturbed region. Soft crystalline materials with such fluorescence intensity modulations occurring in response to mechanical stimuli under ambient pressure conditions will have potential implications for the design of technologically relevant tunable fluorescent materials.
Collapse
Affiliation(s)
- Biswajit Bhattacharya
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Debjit Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Somnath Dey
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Anisha Puthuvakkal
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India
| | - Surojit Bhunia
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India.,Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Saikat Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India.,Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Rituparno Chowdhury
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Manjima Bhattacharya
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Mrinal Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - Kochunnoonny Manoj
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India
| | - Prasun K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India.,Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| | - C Malla Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India.,Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research (IISER), Kolkata, 741246, Nadia, West Bengal, India
| |
Collapse
|
6
|
Alipour M, Damiri S. Unveiling the role of short-range exact-like exchange in the optimally tuned range-separated hybrids for fluorescence lifetime modeling. J Chem Phys 2020; 152:204301. [PMID: 32486652 DOI: 10.1063/5.0007767] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We propose and validate several variants of the optimally tuned range-separated hybrid functionals (OT-RSHs) including different density functional approximations for predicting the fluorescence lifetimes of different categories of fluorophores within the time-dependent density functional theory (TD-DFT) framework using both the polarizable continuum and state-specific solvation models. Our main idea originates from performing the optimal tuning in the presence of a contribution of the exact-like exchange at the short-range part, which, in turn, leads to the small values of the range-separation parameter, and computing the fluorescence lifetimes using the models including no or small portions of the short-range exact-like exchange. Particular attention is also paid to the influence of the geometries of emitters on fluorescence lifetime computations. It is shown that our developed OT-RSHs along with the polarizable continuum model can be considered as the promising candidates within the TD-DFT framework for the prediction of fluorescence lifetimes for various fluorophores. We find that the proposed models not only outperform their standard counterparts but also provide reliable data better than or comparable to the conventional hybrid functionals with both the fixed and interelectronic distance-dependent exact-like exchanges. Furthermore, it is also revealed that when the excited state geometries come into play, more accurate descriptions of the fluorescence lifetimes can be achieved. Hopefully, our findings can give impetus for future developments of OT-RSHs for computational modeling of other characteristics in fluorescence spectroscopy as well as for verification of the related experimental observations.
Collapse
Affiliation(s)
- Mojtaba Alipour
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71946-84795, Iran
| | - Samaneh Damiri
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71946-84795, Iran
| |
Collapse
|
7
|
Singh A, Badi-Uz-Zama K, Ramanathan G. Protonation of the imino nitrogen deactivates the excited state of imidazolin-5-one in the solid state. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1429-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Chatterjee T, Mandal M, Mandal PK. Solvent H-bond accepting ability induced conformational change and its influence towards fluorescence enhancement and dual fluorescence of hydroxy meta-GFP chromophore analogue. Phys Chem Chem Phys 2016; 18:24332-42. [PMID: 27530959 DOI: 10.1039/c6cp04219h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effect of structural rigidity towards enhancement of fluorescence quantum yield of GFP chromophore analogues has been documented. In the present study, a new way of enhancing the fluorescence quantum yield of two ortho-meta GFP chromophore analogues meta-methoxy-ortho-hydroxy-benzylimidazolidinone (abbreviated as mOMe-HBDI) and meta-diethylamino-ortho-hydroxyl imidazolidinone (abbreviated as MOHIM) has been reported. This enhancement is controlled by the H-bond accepting ability (denoted as β value) of the solvent and happens only in the case of GFP chromophore analogues having ortho (hydroxyl)-meta (electron donating group) and not in the case of analogues having a para electron donating group. The ground state (solid) conformation of mOMe-HBDI has been obtained from single crystal X-ray analysis, exhibiting the existence of strong intramolecular H-bonding. However, in solution phase, as the solvent β value increases, the strength of intramolecular H-bonding decreases. This process has strong influence on the relative conformational orientation of phenyl and imidazolidinone rings. For mOMe-HBDI, fluorescence quantum yield increases with increase in β value of the solvents. However, the effect of solvent polarity cannot be completely ruled out. The lower wavelength emission band (∼480 nm) has been assigned to the normal charge-transferred (CT) species, whereas the highly Stokes shifted emission band (∼660 nm) has been assigned to the proton-transferred (PT) tautomer species for mOMe-HBDI. In solvents of low β value (say hexane) only the PT band and in solvents of high β value (say DMSO) only the CT band is observed. Quite interestingly, in solvents of intermediate β value both CT and PT bands, thus dual emission, are observed. For mOMe-HBDI when fluorescence decay is monitored at the normal CT emission band, it is observed to be biexponential in nature. The short component increases from ∼0.2 ns to 0.6 ns and the long component increases from 1 to 3.6 ns as the β value of the solvent increases. For a particular solvent, when fluorescence decay is monitored at the normal CT band, as the monitoring wavelength increases the amplitude of the long lifetime component increases and that of the short lifetime component decreases. Time-resolved area-normalised emission spectral (TRANES) analysis confirms the possible existence of two conformers having differential stabilisation by solvent polarity. When fluorescence decay is monitored at the PT band an instrument response limited (<60 ps) decay is noted. Strong support in favour of the above-mentioned structural, steady state and time-resolved optical observations and analyses has been obtained from the methoxy derivative mOMe-MBDI and MOMIM.
Collapse
Affiliation(s)
- Tanmay Chatterjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West-Bengal 741246, India.
| | | | | |
Collapse
|
9
|
Chatterjee T, Mandal M, Das A, Bhattacharyya K, Datta A, Mandal PK. Dual Fluorescence in GFP Chromophore Analogues: Chemical Modulation of Charge Transfer and Proton Transfer Bands. J Phys Chem B 2016; 120:3503-10. [PMID: 26998908 DOI: 10.1021/acs.jpcb.6b01993] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Tanmay Chatterjee
- Department
of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West-Bengal 741246, India
| | - Mrinal Mandal
- Department
of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West-Bengal 741246, India
| | - Ananya Das
- Department
of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West-Bengal 741246, India
| | - Kalishankar Bhattacharyya
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Ayan Datta
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Prasun K. Mandal
- Department
of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West-Bengal 741246, India
| |
Collapse
|
10
|
Chatterjee T, Mandal M, Gude V, Bag PP, Mandal PK. Strong electron donation induced differential nonradiative decay pathways for para and meta GFP chromophore analogues. Phys Chem Chem Phys 2015; 17:20515-21. [PMID: 26176350 DOI: 10.1039/c5cp03086b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Z-E Isomerisation because of rotation around the exocyclic double bond (known as the τ-twist) and not any other internal conversion has been reported to be the major nonradiative decay channel for non-hydroxylic unconstrained para and meta GFP chromophore analogues. The equation Φf + 2ΦZE = 1 has been shown to hold well for both para and meta GFP chromophore analogues. If the above equation holds true, then upon reducing the extent of Z-E isomerisation (ΦZE), the fluorescence quantum yield (Φf) should increase. To probe the above proposition two sets of non-hydroxylic unconstrained para and meta GFP chromophore analogues were synthesized. Quite interestingly by introducing the strongly electron donating -NEt2 group to the benzenic moiety these para and meta GFP chromophore analogues were shown to exhibit differential optical behaviour w.r.t. the extent of the solvatochromic shift, Φf, ΦZE, and τf. For the first time it has been shown that the well accepted equation Φf + 2ΦZE = 1 does not hold at all for these non-hydroxylic unconstrained meta analogues. Although ΦZE has been shown to be <10%, Φf is much lower than the expected near unity value for these meta analogues. After detailed investigation into the nonradiative excited state decay channel, contrary to literature reports, energy gap law governed internal conversion and not Z-E isomerisation was shown to be the major nonradiative decay channel for these meta analogues. Two models are put forward to understand the differential optical behaviour of these para and meta GFP chromophore analogues. Support from X-ray crystal structures, NMR experiments, and computational calculations has also been provided.
Collapse
Affiliation(s)
- Tanmay Chatterjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohanpur, Kolkata, West-Bengal 741246, India.
| | | | | | | | | |
Collapse
|