1
|
Casotto A, Rukin PS, Fresch E, Prezzi D, Freddi S, Sangaletti L, Rozzi CA, Collini E, Pagliara S. Coherent Vibrations Promote Charge-Transfer across a Graphene-Based Interface. J Am Chem Soc 2024; 146:14989-14999. [PMID: 38767025 DOI: 10.1021/jacs.3c12705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Discerning the impact of the coherent motion of the nuclei on the timing and efficiency of charge transfer at the donor-acceptor interface is essential for designing performance-enhanced optoelectronic devices. Here, we employ an experimental approach using photocurrent detection in coherent multidimensional spectroscopy to excite a donor aromatic macrocycle and collect the charge transferred to a 2D acceptor layer. For this purpose, we prepared a cobalt phthalocyanine-graphene (CoPc-Gr) interface. Unlike blends, the well-ordered architecture achieved through the physical separation of the two layers allows us to unambiguously collect the electrical signal from graphene alone and associate it with a microscopic understanding of the whole process. The CoPc-Gr interface exhibits an ultrafast electron-transfer signal, stemming from an interlayer mechanism. Remarkably, the signal presents an oscillating time evolution modulated by coherent vibrations originating from the laser-excited CoPc states. By performing Fourier analysis on the beatings and correlating it with the Raman features, along with a comprehensive first-principles characterization of the vibrational coupling in the CoPc excited states, we successfully identify both the orbitals and molecular vibrations that promote the charge transfer at the interface.
Collapse
Affiliation(s)
- Andrea Casotto
- I-LAMP and Department of Mathematics and Physics, Università Cattolica del Sacro Cuore, via della Garzetta 48, 25133 Brescia, Italy
- Radiation Laboratory and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Pavel S Rukin
- Istituto Nanoscienze─Consiglio Nazionale delle Ricerche (CNR-NANO), via Campi 213/A, 41125 Modena, Italy
| | - Elisa Fresch
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Deborah Prezzi
- Istituto Nanoscienze─Consiglio Nazionale delle Ricerche (CNR-NANO), via Campi 213/A, 41125 Modena, Italy
| | - Sonia Freddi
- I-LAMP and Department of Mathematics and Physics, Università Cattolica del Sacro Cuore, via della Garzetta 48, 25133 Brescia, Italy
| | - Luigi Sangaletti
- I-LAMP and Department of Mathematics and Physics, Università Cattolica del Sacro Cuore, via della Garzetta 48, 25133 Brescia, Italy
| | - Carlo A Rozzi
- Istituto Nanoscienze─Consiglio Nazionale delle Ricerche (CNR-NANO), via Campi 213/A, 41125 Modena, Italy
| | - Elisabetta Collini
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Stefania Pagliara
- I-LAMP and Department of Mathematics and Physics, Università Cattolica del Sacro Cuore, via della Garzetta 48, 25133 Brescia, Italy
| |
Collapse
|
2
|
Petropoulos V, Rukin PS, Quintela F, Russo M, Moretti L, Moore A, Moore T, Gust D, Prezzi D, Scholes GD, Molinari E, Cerullo G, Troiani F, Rozzi CA, Maiuri M. Vibronic Coupling Drives the Ultrafast Internal Conversion in a Functionalized Free-Base Porphyrin. J Phys Chem Lett 2024; 15:4461-4467. [PMID: 38630018 DOI: 10.1021/acs.jpclett.4c00372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Internal conversion (IC) is a common radiationless transition in polyatomic molecules. Theory predicts that molecular vibrations assist IC between excited states, and ultrafast experiments can provide insight into their structure-function relationship. Here we elucidate the dynamics of the vibrational modes driving the IC process within the Q band of a functionalized porphyrin molecule. Through a combination of ultrafast multidimensional spectroscopies and theoretical modeling, we observe a 60 fs Qy-Qx IC and demonstrate that it is driven by the interplay among multiple high-frequency modes. Notably, we identify 1510 cm-1 as the leading tuning mode that brings the porphyrin to an optimal geometry for energy surface crossing. By employing coherent wave packet analysis, we highlight a set of short-lived vibrations (1200-1400 cm-1), promoting the IC within ≈60 fs. Furthermore, we identify one coupling mode (1350 cm-1) that is responsible for vibronic mixing within the Q states. Our findings indicate that porphyrin-core functionalization modulates IC effectively, offering new opportunities in photocatalysis and optoelectronics.
Collapse
Affiliation(s)
- Vasilis Petropoulos
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Pavel S Rukin
- CNR - Istituto Nanoscienze, Via Campi 213A, I-41125 Modena, Italy
| | - Frank Quintela
- Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università degli Studi di Modena e Reggio Emilia, via G. Campi 213A, I-41125 Modena, Italy
| | - Mattia Russo
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Luca Moretti
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Ana Moore
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Thomas Moore
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Devens Gust
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Deborah Prezzi
- CNR - Istituto Nanoscienze, Via Campi 213A, I-41125 Modena, Italy
| | - Gregory D Scholes
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Elisa Molinari
- CNR - Istituto Nanoscienze, Via Campi 213A, I-41125 Modena, Italy
- Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università degli Studi di Modena e Reggio Emilia, via G. Campi 213A, I-41125 Modena, Italy
| | - Giulio Cerullo
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Filippo Troiani
- CNR - Istituto Nanoscienze, Via Campi 213A, I-41125 Modena, Italy
| | - Carlo A Rozzi
- CNR - Istituto Nanoscienze, Via Campi 213A, I-41125 Modena, Italy
| | - Margherita Maiuri
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| |
Collapse
|
3
|
Rukin P, Prezzi D, Rozzi CA. Excited-state normal-mode analysis: The case of porphyrins. J Chem Phys 2023; 159:244103. [PMID: 38131481 DOI: 10.1063/5.0173336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/14/2023] [Indexed: 12/23/2023] Open
Abstract
We systematically applied excited-state normal mode analysis to investigate and compare the relaxation and internal conversion dynamics of a free-base porphyrin (BP) with those of a novel functional porphyrin (FP) derivative. We discuss the strengths and limitations of this method and employ it to predict very different dynamical behaviors of the two compounds and to clarify the role of high reorganization energy modes in driving the system toward critical regions of the potential energy landscape. We identify the modes of vibrations along which the energy gap between two excited-state potential energy surfaces within the Q band manifold may vanish and find that the excess energy to reach this "touching" region is significantly reduced in the case of FP (0.16 eV) as compared to the one calculated for BP (0.92 eV). Our findings establish a link between the chemical functionalization and the electronic and vibrational structure that can be exploited to control the internal conversion pathways in a systematic way.
Collapse
Affiliation(s)
- Pavel Rukin
- S3 Center, Nanoscience Institute - National Research Council (CNR-NANO), Via Campi 213/a, Modena, Italy
| | - Deborah Prezzi
- S3 Center, Nanoscience Institute - National Research Council (CNR-NANO), Via Campi 213/a, Modena, Italy
| | - Carlo Andrea Rozzi
- S3 Center, Nanoscience Institute - National Research Council (CNR-NANO), Via Campi 213/a, Modena, Italy
| |
Collapse
|
4
|
Antina LA, Bumagina NA, Kalinkina VA, Lukanov MM, Ksenofontov AA, Kazak AV, Berezin MB, Antina EV. Aggregation behavior and spectroscopic properties of red-emitting distyryl-BODIPY in aqueous solution, Langmuir-Schaefer films and Pluoronic® F127 micelles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121366. [PMID: 35588603 DOI: 10.1016/j.saa.2022.121366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Red-emitting distyryl substituted BODIPY dyes are among the most promising luminophors for bioimaging and optics applications. However, the practical application of BODIPYs is limited due to their high hydrophobicity and tendency to aggregate in aqueous organic solutions and solid phase. In this article, we propose an elegant solution to this problem. To this end, we carried out the detailed experimental and quantum-chemical study of the structural and spectral features of BF2-ms-phenyl-5,5'-bis(4-dimethylaminostyryl)-3,3'-dimethyl-2,2'-dipyrromethene (distyryl-BDP). The particular attention was paid to analysis of high sensitivity of the distyryl-BDP spectral characteristics to the solvent properties, and also the aggregation behavior features both in water-organic media and in mono- and multilayer Langmuir-Schaefer films. We selected the best conditions to obtain the hydrophilic micellar structures of distyryl-BDP with Pluronic® F127 having a high efficiency of dye solubilization. This method increasing the solubility improves the distyryl-BDP transport efficiency in physiological aqueous media. The aqueous solutions of distyryl-BDP-Pl micelles show the intense fluorescence in the phototherapy window region (λfl = 739 nm).
Collapse
Affiliation(s)
- Lubov A Antina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia.
| | - Natalia A Bumagina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia
| | - Valeria A Kalinkina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia; Ivanovo State University of Chemistry and Technology, 7 Sheremetievskiy Av., 153000 Ivanovo, Russia
| | - Michail M Lukanov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia; Ivanovo State University of Chemistry and Technology, 7 Sheremetievskiy Av., 153000 Ivanovo, Russia
| | - Alexander A Ksenofontov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia
| | - Alexander V Kazak
- Nanomaterials Research Institute, Ivanovo State University, Ermak Str., 39, 153025 Ivanovo, Russia; Moscow Region State University, Very Voloshinoy St., 24, 141014, Mytishchi, Russia
| | - Mikhail B Berezin
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia
| | - Elena V Antina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russia
| |
Collapse
|
5
|
Postnikov VA, Sorokina NI, Kulishov AA, Lyasnikova MS, Sorokin TA, Freidzon AY, Stepko AS, Borshchev OV, Skorotetsky MS, Surin NM, Svidchenko EA, Ponomarenko SA. A new linear phenyloxazole-benzothiadiazole luminophore: crystal growth, structure and fluorescence properties. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:261-269. [PMID: 35411864 DOI: 10.1107/s2052520622001846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
A new linear luminophore consisting of five conjugated units of oxazole, phenylene and a central benzothiadiazole fragment, 4,7-bis[4-(1,3-oxazol-5-yl)phenyl]-2,1,3-benzothiadiazole, has been synthesized and characterized. Needle-like single-crystal samples up to 10 mm in length were obtained by physical vapor transport. The crystal structure was determined at 95 K and 293 K using single-crystal X-ray diffraction. With decreasing temperature, the space group P21/n does not change, but the unit-cell volume of the crystal decreases. The presence of intra- and intermolecular hydrogen bonds was established. Melting parameters (Tm = 305.5°C, ΔHm = 52.2 kJ mol-1) and the presence of a liquid-crystalline mesophase (TLC = 336.3°C, ΔHLC = 1.4 kJ mol-1) were determined by differential scanning calorimetry and in situ thermal polarization optical microscopy studies. The presence of linear chains of hydrogen bonds ensures high stability of the crystal structure in a wide temperature range. The luminophore is characterized by a large Stokes shift (5120-5670 cm-1) and a high quantum yield of fluorescence, reaching 96% in solutions (λmax = 517 nm) and 27% in thin crystalline films (λmax = 529 nm). The calculated absorption and emission spectra are in good agreement with the experimental data. Because of the excellent optical properties and high thermal stability, the new linear luminophore has great potential for application in organic photonics and optoelectronic devices.
Collapse
Affiliation(s)
- Valery A Postnikov
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Natalia I Sorokina
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Artem A Kulishov
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Maria S Lyasnikova
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Timofei A Sorokin
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Alexandra Ya Freidzon
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Anastasia S Stepko
- Federal Scientific Research Center `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky prosp. 59, Moscow, 119333, Russian Federation
| | - Oleg V Borshchev
- Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, Profsoyuznaya st. 70, Moscow, 117393, Russian Federation
| | - Maxim S Skorotetsky
- Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, Profsoyuznaya st. 70, Moscow, 117393, Russian Federation
| | - Nikolay M Surin
- Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, Profsoyuznaya st. 70, Moscow, 117393, Russian Federation
| | - Evgeniya A Svidchenko
- Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, Profsoyuznaya st. 70, Moscow, 117393, Russian Federation
| | - Sergey A Ponomarenko
- Enikolopov Institute of Synthetic Polymer Materials of Russian Academy of Sciences, Profsoyuznaya st. 70, Moscow, 117393, Russian Federation
| |
Collapse
|
6
|
Khrebtov AA, Fedorenko EV, Beloliptsev AY, Mirochnik AG. Polymer films doped with boron difluoride ortho-hydroxydibenzoylmethanates: Solvatochromism and solvent-induced exciplex formation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120548. [PMID: 34742150 DOI: 10.1016/j.saa.2021.120548] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/23/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
The spectral properties and solvatochromic behavior of boron difluoride ortho-hydroxydibenzoylmethanates in polymer matrices with different polarity (polystyrene, polyvinyl chloride, polycarbonate, poly(methyl methacrylate)) were investigated. The specific interaction of polystyrene, polycarbonate and poly(methyl methacrylate) with the investigated fluorophores was revealed. It was shown that the dyes are capable to form exciplexes with phenyl rings of polystyrene. The spectral properties of polystyrene films doped with boron difluoride ortho-hydroxydibenzoylmethanates, which were obtained by the pouring method, significantly depend on the solvent from which they were formed. This makes it possible to control the luminescence color of the films at the manufacturing stage.
Collapse
Affiliation(s)
- Aleksandr A Khrebtov
- Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russian Federation; Far Eastern Federal University, Vladivostok 690091, Russian Federation.
| | - Elena V Fedorenko
- Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russian Federation.
| | - Anton Yu Beloliptsev
- Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russian Federation.
| | - Anatolii G Mirochnik
- Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russian Federation.
| |
Collapse
|
7
|
Kononevich YN, Belova AS, Ionov DS, Sazhnikov VA, Pakhomov AA, Alfimov MV, Muzafarov AM. Novel DBMBF 2-BODIPY dyads connected via a flexible linker: synthesis and photophysical properties. NEW J CHEM 2022. [DOI: 10.1039/d2nj01786e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Novel BODIPY and DBMBF2 dyads connected via a flexible trisiloxane linker were synthesized and their photophysical properties were investigated.
Collapse
Affiliation(s)
- Yuriy N. Kononevich
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation
| | - Anastasia S. Belova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation
| | - Dmitry S. Ionov
- Photochemistry Center, FSRC “Crystallography and Photonics”, Russian Academy of Sciences, 119421 Moscow, Russian Federation
| | - Viacheslav A. Sazhnikov
- Photochemistry Center, FSRC “Crystallography and Photonics”, Russian Academy of Sciences, 119421 Moscow, Russian Federation
- Moscow Institute of Physics and Technology (State University), 141707 Dolgoprudny, Russian Federation
| | - Alexey A. Pakhomov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russian Federation
| | - Mikhail V. Alfimov
- Photochemistry Center, FSRC “Crystallography and Photonics”, Russian Academy of Sciences, 119421 Moscow, Russian Federation
- Moscow Institute of Physics and Technology (State University), 141707 Dolgoprudny, Russian Federation
| | - Aziz M. Muzafarov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russian Federation
| |
Collapse
|
8
|
Freidzon AY, Bagaturyants AA. In-Depth Ab Initio Study of Thermally Activated Delayed Fluorescence in 4,5-Di(9 H-carbazol-9-yl)-phthalonitrile. J Phys Chem A 2020; 124:7927-7934. [PMID: 32882133 DOI: 10.1021/acs.jpca.0c06440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Molecules capable of thermally activated delayed fluorescence (TADF) are promising as emitters in organic light-emitting devices. Processes leading to and competing with TADF in 4,5-di(9H-carbazol-9-yl)-phthalonitrile are analyzed in detail. It is demonstrated that the key features of an efficient TADF emitter include the presence of two triplet states of different natures with potential energy surfaces crossing between the T1 and S1 minima and a noticeable dependence of the S1 → S0 oscillator strength on molecular deformations from low-frequency antisymmetric vibrational modes. These conclusions can be useful in the targeted design of efficient TADF emitters.
Collapse
Affiliation(s)
- Alexandra Ya Freidzon
- Federal Research Center "Crystallography and Photonics" Photochemistry Center, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, Russia.,National Research Nuclear University, Moscow Engineering Physics Institute, Kashirskoye shosse 31, Moscow 115409, Russia
| | - Alexander A Bagaturyants
- Federal Research Center "Crystallography and Photonics" Photochemistry Center, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, Russia.,National Research Nuclear University, Moscow Engineering Physics Institute, Kashirskoye shosse 31, Moscow 115409, Russia
| |
Collapse
|
9
|
Kononevich YN, Temnikov MN, Korlyukov AA, Volodin AD, Dorovatovskii PV, Sazhnikov VA, Safonov AA, Ionov DS, Ivanov AA, Surin NM, Svidchenko EA, Muzafarov AM. Tetrahedral Silicon-Centered Dibenzoylmethanatoboron Difluorides: Synthesis, Crystal Structure, and Photophysical Behavior in Solution and the Solid State. Chempluschem 2020; 85:1111-1119. [PMID: 32237221 DOI: 10.1002/cplu.201900732] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 02/17/2020] [Accepted: 12/16/2019] [Indexed: 11/05/2022]
Abstract
Four tetrahedral silicon-centered derivatives of dibenzoylmethanatoboron difluoride (DBMBF2 ) were synthesized and characterized. Their structural and optical features both in solution and the solid state were investigated by using X-ray crystallography, steady-state and time-dependent spectroscopy, and DFT-based calculations. In dilute solutions, the molar absorption coefficient increases from 40500 to 175200 M-1 cm-1 as the number of DBMBF2 fragments in a molecule increases from one to four, while, in contrast, the nonradiative rate constant of fluorescence decay decreases from 0.49 to 0.34. In the solid state, absorption and emission spectra depend on the degree of crystallinity and microcrystal size. The tris-DBMBF2 derivative forms fully overlapping dimeric structures that exhibit excimer-like fluorescence, which is accurately predicted by the quantum-chemical calculations. The mono-DBMBF2 derivative exhibits fully reverse mechanofluorochromic behavior.
Collapse
Affiliation(s)
- Yuriy N Kononevich
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - Maxim N Temnikov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - Alexander A Korlyukov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russian Federation.,Pirogov Russian National Research Medical University, 117997, Moscow, Russian Federation
| | - Alexander D Volodin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | | | - Viacheslav A Sazhnikov
- Photochemistry Center FSRC "Crystallography and Photonics", Russian Academy of Sciences, 1119421, Moscow, Russian Federation.,Moscow Institute of Physics and Technology (State University), 141707, Dolgoprudny, Russian Federation
| | - Andrey A Safonov
- Photochemistry Center FSRC "Crystallography and Photonics", Russian Academy of Sciences, 1119421, Moscow, Russian Federation
| | - Dmitriy S Ionov
- Photochemistry Center FSRC "Crystallography and Photonics", Russian Academy of Sciences, 1119421, Moscow, Russian Federation
| | - Anatoly A Ivanov
- Photochemistry Center FSRC "Crystallography and Photonics", Russian Academy of Sciences, 1119421, Moscow, Russian Federation
| | - Nikolay M Surin
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393, Moscow, Russian Federation
| | - Evgeniya A Svidchenko
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393, Moscow, Russian Federation
| | - Aziz M Muzafarov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991, Moscow, Russian Federation.,N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393, Moscow, Russian Federation
| |
Collapse
|
10
|
Gelfand N, Freidzon A, Vovna V. Theoretical insights into UV-Vis absorption spectra of difluoroboron β-diketonates with an extended π system: An analysis based on DFT and TD-DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 216:161-172. [PMID: 30897377 DOI: 10.1016/j.saa.2019.02.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/26/2018] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
The UV-Vis absorption spectra of difluoroboron β-diketonates with aromatic substituents at the β-carbon are studied thoroughly using DFT and TD-DFT with the CAM-B3LYP functional. The complicated experimental spectra of these dyes can be correctly interpreted by considering their structural features. A closer look at the calculated data shows that the conformational flexibility of these compounds markedly influences their spectral shape. For the complexes with an extended π system, several conformers with significantly different absorption spectra are present in the equilibrium mixture in solution. Introducing a donor group alters the electronic structure of the complexes, so the charge distribution asymmetry in the molecules increases and the nature of the electronic transitions changes. Thus, both types of substituents, aromatic and donor ones, affect the spectral shape. Understanding their roles may help one to explain the absorption spectra of these and similar compounds and predict their response to analytes and other factors.
Collapse
Affiliation(s)
- Natalia Gelfand
- School of Natural Sciences, Far Eastern Federal University, ul. Sukhanova 8, Vladivostok 690091, Russia.
| | - Alexandra Freidzon
- Photochemistry Center of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, ul. Novatorov 7a, Moscow 119421, Russia; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye shosse 31, Moscow 115409, Russia
| | - Vitaliy Vovna
- School of Natural Sciences, Far Eastern Federal University, ul. Sukhanova 8, Vladivostok 690091, Russia
| |
Collapse
|
11
|
Huang W, Zhang X, Chen B, Miao H, Trindle CO, Wang Y, Luo Y, Zhang G. Boosting the triplet activity of heavy-atom-free difluoroboron dibenzoylmethane via sp3 oxygen-bridged electron donors. Chem Commun (Camb) 2019; 55:67-70. [DOI: 10.1039/c8cc08346k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Boosting triplet activity by introducing an electron donor in BF2dbm proved the charge-transfer mediated ISC process in the oxygen-bridged donor-sp3-acceptor systems.
Collapse
Affiliation(s)
- Wenhuan Huang
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Xuepeng Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Biao Chen
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Hui Miao
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Carl O. Trindle
- Department of Chemistry
- University of Virginia
- Charlottesville
- USA
| | - Yucai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| | - Guoqing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- China
| |
Collapse
|
12
|
Gelfand NA, Fedorenko EV, Mirochnik AG, Vovna VI. Interaction of hydroxy substituted dibenzoylmethanatoboron difluoride with hydrated ammonia in solution: A combined spectroscopic and computational study. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
13
|
Tikhonov SA, Vovna VI. Boron chelate complexes: X-ray and UV photoelectron spectra and electronic structure. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2196-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
14
|
Tikhonov SA, Svistunova IV, Samoilov IS, Osmushko IS, Borisenko AV, Vovna VI. Electronic structure of binuclear acetylacetonates of boron difluoride. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
15
|
Cipolloni M, Fresch B, Occhiuto I, Rukin P, Komarova KG, Cecconello A, Willner I, Levine RD, Remacle F, Collini E. Coherent electronic and nuclear dynamics in a rhodamine heterodimer-DNA supramolecular complex. Phys Chem Chem Phys 2018; 19:23043-23051. [PMID: 28817145 DOI: 10.1039/c7cp01334e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Elucidating the role of quantum coherences in energy migration within biological and artificial multichromophoric antenna systems is the subject of an intense debate. It is also a practical matter because of the decisive implications for understanding the biological processes and engineering artificial materials for solar energy harvesting. A supramolecular rhodamine heterodimer on a DNA scaffold was suitably engineered to mimic the basic donor-acceptor unit of light-harvesting antennas. Ultrafast 2D electronic spectroscopic measurements allowed identifying clear features attributable to a coherent superposition of dimer electronic and vibrational states contributing to the coherent electronic charge beating between the donor and the acceptor. The frequency of electronic charge beating is found to be 970 cm-1 (34 fs) and can be observed for 150 fs. Through the support of high level ab initio TD-DFT computations of the entire dimer, we established that the vibrational modes preferentially optically accessed do not drive subsequent coupling between the electronic states on the 600 fs of the experiment. It was thereby possible to characterize the time scales of the early time femtosecond dynamics of the electronic coherence built by the optical excitation in a large rigid supramolecular system at a room temperature in solution.
Collapse
Affiliation(s)
- M Cipolloni
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - B Fresch
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy. and Theoretical Physical Chemistry, University of Liège, Allée du 6 Aout 11, B4000 Liège, Belgium
| | - I Occhiuto
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - P Rukin
- Theoretical Physical Chemistry, University of Liège, Allée du 6 Aout 11, B4000 Liège, Belgium
| | - K G Komarova
- Theoretical Physical Chemistry, University of Liège, Allée du 6 Aout 11, B4000 Liège, Belgium
| | - A Cecconello
- The Institute of Chemistry, Safra Campus, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - I Willner
- The Institute of Chemistry, Safra Campus, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - R D Levine
- The Institute of Chemistry, Safra Campus, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - F Remacle
- Theoretical Physical Chemistry, University of Liège, Allée du 6 Aout 11, B4000 Liège, Belgium
| | - E Collini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| |
Collapse
|
16
|
Tikhonov SA, Vovna VI, Osmushko IS, Fedorenko EV, Mirochnik AG. Boron difluoride dibenzoylmethane derivatives: Electronic structure and luminescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:563-570. [PMID: 28866412 DOI: 10.1016/j.saa.2017.08.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 08/06/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Electronic structure and optical properties of boron difluoride dibenzoylmethanate and four of its derivatives have been studied by X-ray photoelectron spectroscopy, absorption and luminescence spectroscopy and quantum chemistry (DFT, TDDFT). The relative quantum luminescence yields have been revealed to correlate with charge transfers of HOMO-LUMO transitions, energy barriers of aromatic substituents rotation and the lifetime of excited states in the investigated complexes. The bathochromic shift of intensive bands in the optical spectra has been observed to occur when the functional groups are introduced into p-positions of phenyl cycles due to destabilizing HOMO levels. Calculated energy intervals between electronic levels correlate well with XPS spectra structure of valence and core electrons.
Collapse
Affiliation(s)
| | | | | | - Elena V Fedorenko
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
| | - Anatoliy G Mirochnik
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
| |
Collapse
|
17
|
The molecular structure and absorption spectrum of hydroxy substituted dibenzoylmethanatoboron difluoride in solution: A theoretical and experimental study. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
18
|
Kononevich YN, Surin NM, Sazhnikov VA, Svidchenko EA, Aristarkhov VM, Safonov AA, Bagaturyants AA, Alfimov MV, Muzafarov AM. Synthesis and photophysical properties of halogenated derivatives of (dibenzoylmethanato)boron difluoride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 175:177-184. [PMID: 28038375 DOI: 10.1016/j.saa.2016.12.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 12/16/2016] [Accepted: 12/18/2016] [Indexed: 06/06/2023]
Abstract
A series of (dibenzoylmethanato)boron difluoride (BF2DBM) derivatives with a halogen atom in one of the phenyl rings at the para-position were synthesized and used to elucidate the effects of changing the attached halogen atom on the photophysical properties of BF2DBM. The room-temperature absorption and fluorescence maxima of fluoro-, chloro-, bromo- and iodo-substituted derivatives of BF2DBM in THF are red-shifted by about 2-10nm relative to the corresponding peaks of the parent BF2DBM. The fluorescence quantum yields of the halogenated BF2DBMs (except the iodinated derivative) are larger than that of the unsubstituted BF2DBM. All the synthesized compounds are able to form fluorescent exciplexes with benzene and toluene (emission maxima at λem=433 and 445nm, respectively). The conformational structure and electronic spectral properties of halogenated BF2DBMs have been modeled by DFT/TDDFT calculations at the PBE0/SVP level of theory. The structure and fluorescence spectra of exciplexes were calculated using the CIS method with empirical dispersion correction.
Collapse
Affiliation(s)
- Yuriy N Kononevich
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
| | - Nikolay M Surin
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russian Federation
| | | | - Evgeniya A Svidchenko
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russian Federation
| | | | - Andrei A Safonov
- Photochemistry Center, Russian Academy of Sciences, 119421 Moscow, Russian Federation
| | - Alexander A Bagaturyants
- Photochemistry Center, Russian Academy of Sciences, 119421 Moscow, Russian Federation; National Research Nuclear University MEPhI, 115409 Moscow, Russian Federation
| | - Mikhail V Alfimov
- Photochemistry Center, Russian Academy of Sciences, 119421 Moscow, Russian Federation; Moscow Institute of Physics and Technology (State University), 141707 Dolgoprudny, Russian Federation
| | - Aziz M Muzafarov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation; N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russian Federation
| |
Collapse
|
19
|
Bösch CD, Langenegger SM, Häner R. Light-Harvesting Nanotubes Formed by Supramolecular Assembly of Aromatic Oligophosphates. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604508] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Caroline D. Bösch
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Simon M. Langenegger
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Robert Häner
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| |
Collapse
|
20
|
Bösch CD, Langenegger SM, Häner R. Light-Harvesting Nanotubes Formed by Supramolecular Assembly of Aromatic Oligophosphates. Angew Chem Int Ed Engl 2016; 55:9961-4. [DOI: 10.1002/anie.201604508] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Caroline D. Bösch
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Simon M. Langenegger
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Robert Häner
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 3012 Bern Switzerland
| |
Collapse
|
21
|
Jun Y. Time-Dependent Density Functional Theory Study of Low-Lying Absorption and Fluorescence Band Shapes for Phenylene-Containing Oligoacenes. J Phys Chem A 2015; 119:12706-14. [DOI: 10.1021/acs.jpca.5b09788] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ye Jun
- Institute of High Performance Computing, Agency for Science, Technology
and Research, 1 Fusionopolis
Way, #16-16 Connexis North, Singapore 138632, Singapore
| |
Collapse
|
22
|
Masunov AE, Anderson D, Freidzon AY, Bagaturyants AA. Symmetry-Breaking in Cationic Polymethine Dyes: Part 2. Shape of Electronic Absorption Bands Explained by the Thermal Fluctuations of the Solvent Reaction Field. J Phys Chem A 2015; 119:6807-15. [DOI: 10.1021/acs.jpca.5b03877] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | | | - Alexandra Ya. Freidzon
- Photochemistry
Center RAS, ul. Novatorov 7a, Moscow, 119421, Russia
- National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow, 115409, Russia
| | - Alexander A. Bagaturyants
- Photochemistry
Center RAS, ul. Novatorov 7a, Moscow, 119421, Russia
- National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow, 115409, Russia
| |
Collapse
|