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Haketa Y, Komatsu K, Sei H, Imoba H, Ota W, Sato T, Murakami Y, Tanaka H, Yasuda N, Tohnai N, Maeda H. Enhanced solid-state phosphorescence of organoplatinum π-systems by ion-pairing assembly. Chem Sci 2024; 15:964-973. [PMID: 38239682 PMCID: PMC10793596 DOI: 10.1039/d3sc04564a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/01/2023] [Indexed: 01/22/2024] Open
Abstract
Anion binding and ion pairing of dipyrrolyldiketone PtII complexes as anion-responsive π-electronic molecules resulted in photophysical modulations, as observed in solid-state phosphorescence properties. Modifications to arylpyridine ligands in the PtII complexes significantly impacted the assembling behaviour and photophysical properties of anion-free and anion-binding (ion-pairing) forms. The PtII complexes, in the presence of guest anions and their countercations, formed various anion-binding modes and ion-pairing assembled structures depending on constituents and forms (solutions and crystals). The PtII complexes emitted strong phosphorescence in deoxygenated solutions but showed extremely weak phosphorescence in the solid state owing to self-association. In contrast, the solid-state ion-pairing assemblies with tetraalkylammonium cations exhibited enhanced phosphorescence owing to the formation of hydrogen-bonding 1D-chain PtII complexes dispersed by stacking with aliphatic cations. Theoretical studies revealed that the enhanced phosphorescence in the solid-state ion-pairing assembly was attributed to preventing the delocalisation of the electron wavefunction over PtII complexes.
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Affiliation(s)
- Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Kaifu Komatsu
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Hiroi Sei
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | - Hiroki Imoba
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | | | - Tohru Sato
- Fukui Institute for Fundamental Chemistry, Kyoto University Kyoto 606-8103 Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan
| | - Yu Murakami
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Hiroki Tanaka
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Nobuhiro Yasuda
- Beamline Division, Japan Synchrotron Radiation Research Institute Sayo 679-5198 Japan
| | - Norimitsu Tohnai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
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Zaima T, Ota W, Haruta N, Uejima M, Ohkita H, Sato T. Spontaneous-Symmetry-Breaking Charge Separation Induced by Pseudo-Jahn-Teller Distortion in Organic Photovoltaic Material. J Phys Chem Lett 2023; 14:9706-9712. [PMID: 37877625 DOI: 10.1021/acs.jpclett.3c02527] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The driving force of charge separation in the initial photovoltaic conversion process is theoretically investigated using ITIC, a nonfullerene acceptor material for organic photovoltaic devices. The density functional theory calculations show that the pseudo-Jahn-Teller (PJT) distortion of the S1 excimer state induces spontaneous symmetry-breaking charge separation between the identical ITIC molecules even without the asymmetry of the surrounding environment. The strong PJT effect arises from the vibronic coupling between the pseudodegenerate S1 and S2 excited states with different irreducible representations (irreps), i.e., Au for S1 and Ag for S2, via the asymmetric vibrational mode with the Au irrep. The vibrational mode responsible for the spontaneous polarization, which is opposite in one ITIC monomer and the other, is the intramolecular C-C stretching vibration between the core IT and terminal IC units. These results suggest that controlling the PJT effect can improve the charge separation efficiency of the initial photovoltaic conversion process.
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Affiliation(s)
- Takeaki Zaima
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano Nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Wataru Ota
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano Nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Naoki Haruta
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano Nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Motoyuki Uejima
- MOLFEX, Inc., Takano Nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
| | - Hideo Ohkita
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tohru Sato
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano Nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Ota W, Kojima Y, Hosokawa S, Teramura K, Tanaka T, Sato T. A theoretical investigation into the role of catalyst support and regioselectivity of molecular adsorption on a metal oxide surface: NO reduction on Cu/γ-alumina. Phys Chem Chem Phys 2021; 23:2575-2585. [PMID: 33305299 DOI: 10.1039/d0cp04895j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The role of catalyst support and regioselectivity of molecular adsorption on a metal oxide surface is investigated for NO reduction on a Cu/γ-alumina heterogeneous catalyst. For the solid surface, computational models of the γ-alumina surface are constructed based on the Step-by-Step Hydrogen Termination (SSHT) approach. Dangling bonds, which appear upon cutting the crystal structure of a model, are terminated stepwise with H atoms until the model has an appropriate energy gap. The obtained SSHT models reflect the realistic infrared (IR) and ultraviolet-visible (UV/Vis) spectra. Vibronic coupling density (VCD), as a reactivity index, is employed to elucidate the regioselectivity of Cu adsorption on γ-alumina and that of NO adsorption on Cu/γ-alumina in place of the frontier orbital theory that could not provide clear results. We discovered that the highly dispersed Cu atoms are loaded on Lewis-basic O atoms, which is known as the anchoring effect, located in the tetrahedral sites of the γ-alumina surface. The role of the γ-alumina support is to raise the frontier orbital of the Cu catalyst, which in turn gives rise to the electron back-donation from Cu/γ-alumina to NO. In addition, the penetration of the VCD distribution of Cu/γ-alumina into the γ-alumina support indicates that the excessive reaction energy dissipates into the support after NO adsorption and reduction. In other words, the support plays the role of a heat bath. The NO reduction on Cu/γ-alumina proceeds even in an oxidative atmosphere because the Cu-NO bond is strong compared to the Cu-O2 bond.
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Affiliation(s)
- Wataru Ota
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan. and Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yasuro Kojima
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Saburo Hosokawa
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan and Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8245, Japan
| | - Kentaro Teramura
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan and Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8245, Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan and Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8245, Japan
| | - Tohru Sato
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan. and Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan and Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8245, Japan
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Nagami T, Tonami T, Okada K, Yoshida W, Miyamoto H, Nakano M. Vibronic coupling density analysis and quantum dynamics simulation for singlet fission in pentacene and its halogenated derivatives. J Chem Phys 2020; 153:134302. [DOI: 10.1063/5.0024746] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Takanori Nagami
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Takayoshi Tonami
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Kenji Okada
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Wataru Yoshida
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Hajime Miyamoto
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Quantum Information and Quantum Biology Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Model building of metal oxide surfaces and vibronic coupling density as a reactivity index: Regioselectivity of CO2 adsorption on Ag-loaded Ga2O3. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.11.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Sato T, Haruta N, Tanaka K. Thermodynamical vibronic coupling constant and density: Chemical potential and vibronic coupling in reactions. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.04.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Fluorescence enhancement of non-fluorescent triphenylamine: A recipe to utilize carborane cluster substituents. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.05.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Huang JD, Li WL, Wen SH, Dong B. Electronic structure and microscopic charge-transport properties of a new-type diketopyrrolopyrrole-based material. J Comput Chem 2015; 36:695-706. [PMID: 25706355 DOI: 10.1002/jcc.23825] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/03/2014] [Accepted: 12/04/2014] [Indexed: 01/20/2023]
Abstract
Recently, diketopyrrolopyrrole (DPP)-based materials have attracted much interest due to their promising performance as a subunit in organic field effect transistors. Using density functional theory and charge-transport models, we investigated the electronic structure and microscopic charge transport properties of the cyanated bithiophene-functionalized DPP molecule (compound 1). First, we analyzed in detail the partition of the total relaxation (polaron) energy into the contributions from each vibrational mode and the influence of bond-parameter variations on the local electron-vibration coupling of compound 1, which well explains the effects of different functional groups on internal reorganization energy (λ). Then, we investigated the structural and electronic properties of compound 1 in its isolated molecular state and in the solid state form, and further simulated the angular resolution anisotropic mobility for both electron- and hole-transport using two different simulation methods: (i) the mobility orientation function proposed in our previous studies (method 1); and (ii) the master equation approach (method 2). The calculated electron-transfer mobility (0.00003-0.784 cm(2) V(-1) s(-1) from method 1 and 0.02-2.26 cm(2) V(-1) s(-1) from method 2) matched reasonably with the experimentally reported value (0.07-0.55 cm(2) V(-1) s(-1) ). To the best of our knowledge, this is the first time that the transport parameters of compound 1 were calculated in the context of band model and hopping models, and both calculation results suggest that the intrinsic hole mobility is higher than the corresponding intrinsic electron mobility. Our calculation results here will be instructive to further explore the potential of other higher DPP-containing quinoidal small molecules.
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Affiliation(s)
- Jin-Dou Huang
- School of Physics and Materials Engineering, Dalian Nationalities University, Dalian, 116600, China
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Haruta N, Sato T, Tanaka K. Reactivity of endohedral metallofullerene la2@c80 in nucleophilic and electrophilic attacks: vibronic coupling density approach. J Org Chem 2015; 80:141-7. [PMID: 25389657 DOI: 10.1021/jo502208t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The regioselectivities of La2@C80 in thermal nucleophilic and electrophilic attacks were theoretically investigated using vibronic coupling density (VCD) analysis. Nucleophilic and electrophilic cycloadditions to La2@C80 were experimentally reported to yield [6,6] and [6,5] adducts, respectively, as major products. VCD analysis provided a clear explanation for these experimental results. For nucleophilic reactions, it was found that the reactive [6,6] bonds did not have a large lowest unoccupied molecular orbital (LUMO) density and Fukui function but a large potential derivative with respect to a reaction mode. The VCD illustrates the origin of the interaction between the electronic and vibrational states. On the other hand, conventional reactivity indices such as frontier orbital density take only the electronic state into account. The result suggested that the stabilization due to vibronic couplings plays an important role in the regioselectivity of nucleophilic cycloadditions. The VCD with respect to the effective mode could provide a picture of the functional groups, which are the double bonds of ethylene moieties. VCD analysis with respect to hypothetical localized modes enabled the quantitative prediction of regioselectivities.
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11
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Haruta N, Sato T, Tanaka K. Reactivity index for Diels–Alder cycloadditions to large polycyclic aromatic hydrocarbons using vibronic coupling density. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Khan BA, Sardar S, Sarkar P, Adhikari S. Multisurface Multimode Molecular Dynamical Simulation of Naphthalene and Anthracene Radical Cations by Using Nearly Linear Scalable Time-Dependent Discrete Variable Representation Method. J Phys Chem A 2014; 118:11451-70. [PMID: 25426887 DOI: 10.1021/jp507459m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Basir Ahamed Khan
- Department
of Physics, Krishnath College, Berhampore, West Bengal 742101, India
- Department
of Chemistry, Visva-Bharati University, Santiniketan, West Bengal 731235, India
| | - Subhankar Sardar
- Department
of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Pranab Sarkar
- Department
of Chemistry, Visva-Bharati University, Santiniketan, West Bengal 731235, India
| | - Satrajit Adhikari
- Department
of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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Kameoka Y, Uebe M, Ito A, Sato T, Tanaka K. Fluorescent triphenylamine derivative: Theoretical design based on reduced vibronic coupling. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.10.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Hsiao MK, Chung YH, Hung YM, Chen HL. Reaction mechanisms and kinetics of the iminovinylidene radical with NO: ab initio study. J Chem Phys 2014; 140:204316. [PMID: 24880289 DOI: 10.1063/1.4876015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The nitric oxide (NO) is a notorious compound for polluting environment. Recent year, removing nitric oxide from the atmosphere becomes a focus of the investigation. In our work, we study the iminovinylidene (HNCC) radical reacted with NO molecule. The mechanism and kinetic for reaction of the HNCC radical with the NO molecule is investigated via considering the possible channels of the N and O atoms of NO attacking the N and C atoms of the HNCC based on the high level ab initio molecular orbital calculations in conjunction with variational TST and RRKM calculations. The species involved have been optimized at the B3LYP/6-311++G(3df,2p) level and their single-point energies are refined by the CCSD(T)/aug-cc-PVQZ//B3LYP/6-311++G(3df,2p) method. The calculated potential energy surfaces indicated that energetically the most favorable channel for the HNCC + NO reaction was predicted to be the formation of HNC+CNO (P8) product via the addition reaction of the C atom of HNCC radical and the N atom of NO with the head to head orientation. To rationalize the scenario of the calculated results, we also employ the Fukui functions and HSAB theory to seek for a possible explanation. In addition, the reaction rate constants were calculated using VariFlex code, and the results show that the total rate coefficient, ktotal, at Ar pressure 760 Torr can be represented with an equation: ktotal = 6.433 × 10(-11) T (0.100) exp(0.275 kcal mol(-1)/RT) at T = 298-3000 K, in units of cm(3) molecule(-1) s(-1).
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Affiliation(s)
- Ming-Kai Hsiao
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - Yi-Hua Chung
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - Yu-Ming Hung
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - Hui-Lung Chen
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei 111, Taiwan
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Haruta N, Sato T, Tanaka K. Regioselectivity in multiple cycloadditions to fullerene C60: vibronic coupling density analysis. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Uejima M, Sato T, Detani M, Wakamiya A, Suzuki F, Suzuki H, Fukushima T, Tanaka K, Murata Y, Adachi C, Kaji H. A designed fluorescent anthracene derivative: Theory, calculation, synthesis, and characterization. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Uejima M, Sato T, Tanaka K, Kaji H. Enhancement of fluorescence in anthracene by chlorination: Vibronic coupling and transition dipole moment density analysis. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2013.12.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Uejima M, Sato T, Yokoyama D, Tanaka K, Park JW. Quantum yield in blue-emitting anthracene derivatives: vibronic coupling density and transition dipole moment density. Phys Chem Chem Phys 2014; 16:14244-56. [DOI: 10.1039/c4cp01428f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diagonal vibronic couplings in the Franck–Condon S1 state cause torsional distortion, which gives rise to enhancement of fluorescence with a large transition dipole moment.
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Affiliation(s)
- Motoyuki Uejima
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
| | - Tohru Sato
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
- Unit of Elements Strategy Initiative for Catalysts & Batteries
| | - Daisuke Yokoyama
- Department of Organic Device Engineering and Research Center of Organic Electronics (ROEL)
- Yamagata University
- Yonezawa, Japan
| | - Kazuyoshi Tanaka
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
| | - Jong-Wook Park
- Department of Chemistry/Display Research Center
- The Catholic University of Korea
- Bucheon 420-743, Republic of Korea
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Priya AM, Senthilkumar L. Degradation of methyl salicylate through Cl initiated atmospheric oxidation – a theoretical study. RSC Adv 2014. [DOI: 10.1039/c4ra02398f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Iwahara N, Sato T, Tanaka K, Kaji H. Vibronic couplings in C60 derivatives for organic photovoltaics. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.10.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Haruta N, Sato T, Tanaka K, Baron M. Reaction mechanism in the mechanochemical synthesis of dibenzophenazine: application of vibronic coupling density analysis. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.114] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Uejima M, Sato T, Tanaka K, Kaji H. Vibronic coupling density analysis for the chain-length dependence of reorganization energies in oligofluorenes: a comparative study with oligothiophenes. Phys Chem Chem Phys 2013; 15:14006-16. [PMID: 23872623 DOI: 10.1039/c3cp51592c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The vibronic coupling constants and reorganization energies of oligofluorenes OF(n) (n = 1-6) are calculated for their cationic states (hole transport). Those of oligothiophenes OT(2n) (n = 1-6) are also calculated for comparison. The vibronic coupling constants of OF(n) are smaller than those of OT(2n), and decrease with increasing n. For the elucidation of the small vibronic couplings of the oligofluorenes, the calculated vibronic coupling constants are analyzed on the basis of the concept of vibronic coupling density. The vibronic coupling density of OF(n) becomes small in the middle of the chain with increasing n because of the reduction in the electron-density difference between the neutral and cationic states. It is found that orbital relaxation plays a crucial role in the distribution of the electron-density difference. From the fragment molecular orbital analyses, the large orbital relaxation in OF(n) is found to originate from the small transfer integral between the fragment molecular orbitals. These findings led to a design principle for a carrier-transporting oligomer/polymer with small vibronic couplings, or small reorganization energy, as follows: the orbital interaction between the monomers should be small from the view of vibronic couplings.
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Affiliation(s)
- Motoyuki Uejima
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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Sato T, Uejima M, Iwahara N, Haruta N, Shizu K, Tanaka K. Vibronic coupling density and related concepts. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/428/1/012010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Liang HL, Chen GH, Gu FL. Theoretical study on the mechanism of reaction of CHF2 with NO2. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Haruta N, Sato T, Tanaka K. Chemical reactivity in nucleophilic cycloaddition to C70: vibronic coupling density and vibronic coupling constants as reactivity indices. J Org Chem 2012; 77:9702-6. [PMID: 23050629 DOI: 10.1021/jo301777d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The chemical reactivity in nucleophilic cycloaddition to C70 is investigated on the basis of vibronic (electron-vibration) coupling density and vibronic coupling constants. Because the e1″ LUMOs of C70 are doubly degenerate and delocalized throughout the molecule, it is difficult to predict the regioselectivity by frontier orbital theory. It is found that vibronic coupling density analysis for the effective mode as a reaction mode illustrates the idea of a functional group embedded in the reactive sites. Furthermore, the vibronic coupling constants for localized stretching vibrational modes enable us to estimate the quantitative reactivity. These calculated results agree well with the experimental findings. The principle of chemical reactivity proposed by Parr and Yang is modified as follows: the preferred direction is the one for which the initial vibronic coupling density for a reaction mode of the isolated reactant is a minimum.
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Affiliation(s)
- Naoki Haruta
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Shigemitsu Y, Uejima M, Sato T, Tanaka K, Tominaga Y. Electronic Spectra of Cycl[3.3.2]azine and Related Compounds: Solvent Effect on Vibronic Couplings. J Phys Chem A 2012; 116:9100-9. [DOI: 10.1021/jp305148x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yasuhiro Shigemitsu
- Industrial Technology Center of Nagasaki, 2-1303-8, Ikeda, Omura, Nagasaki
856-0026, Japan
- Graduate
School of Engineering, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521,
Japan
| | - Motoyuki Uejima
- Graduate School of
Engineering, Kyoto University, Nishikyo-ku,
Kyoto 615-8510, Japan
| | - Tohru Sato
- Graduate School of
Engineering, Kyoto University, Nishikyo-ku,
Kyoto 615-8510, Japan
| | - Kazuyoshi Tanaka
- Graduate School of
Engineering, Kyoto University, Nishikyo-ku,
Kyoto 615-8510, Japan
| | - Yoshinori Tominaga
- Faculty
of Environmental Studies, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521,
Japan
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28
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Muya JT, Sato T, Nguyen MT, Ceulemans A. Pseudo-Jahn–Teller origin of icosahedral instability in boron buckyball, B80. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.06.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Iwahara N, Sato T, Tanaka K. Effect of Coulomb interactions on the vibronic couplings in C60−. J Chem Phys 2012; 136:174315. [DOI: 10.1063/1.4709611] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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30
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31
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Chen HL, Wu SK, Lu YH. Computational study on reaction mechanisms and kinetics of RNCN (R = H, F, Cl, Br, CH3) radicals with NO. J Phys Chem A 2012; 116:3267-73. [PMID: 22324877 DOI: 10.1021/jp3000224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We carried out a computational study of radical reactions of RNCN (R = H, F, Cl, Br, CH(3)) + NO to investigate how the substitution can influence their corresponding energy barriers and rate coefficients. The preferable reactive sites of RNCN radicals with various substituents are calculated by employing the Fukui functions and hard-and-soft acid-and-base theory, which were generally proved to be successful in the prediction and interpretation of regioselectivity in various types of electrophilic and nucleophilic reactions. Our calculated results clearly show that if the substituted RNCN radical has electron-donating substituent (for R = CH(3)), its corresponding barrier heights for transition states will be substantially decreased. The possible explanations of the observed increase and/or decrease in the energy barriers for the varied substituted RNCN radicals are also analyzed in this article.
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Affiliation(s)
- Hui-Lung Chen
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan.
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32
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Iwahara N, Sato T, Tanaka K. Molecular design for high-spin molecules in view of vibronic couplings. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.01.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Eisenberg D, Shenhar R. Polyarene anions: interplay between theory and experiment. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2011. [DOI: 10.1002/wcms.88] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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34
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Vibronic interactions in hole-transporting molecules: An interplay with electron–hole interactions. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.03.078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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Silva VH, Martins MP, de Oliveira HC, Camargo AJ. Theoretical investigation of nitric oxide interaction with aluminum phthalocyanine. J Mol Graph Model 2011; 29:777-83. [DOI: 10.1016/j.jmgm.2010.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 10/20/2010] [Accepted: 10/22/2010] [Indexed: 11/28/2022]
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36
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Manzhos S, Segawa H, Yamashita K. A model for recombination in Type II dye-sensitized solar cells: Catechol–thiophene dyes. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.01.068] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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38
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Chen HL, Chao WC. Quantum Chemical Prediction of Pathways and Rate Constants for Reaction of Cyanomethylene Radical with NO. J Phys Chem A 2011; 115:1133-42. [DOI: 10.1021/jp111136b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Hui-Lung Chen
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
| | - Wan-Chun Chao
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
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39
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Derivative coupling constants of NK1, NK7 dyes and their relation to excited state dynamics in solar cell applications. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2010.11.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Shizu K, Sato T, Ito A, Tanaka K, Kaji H. Theoretical design of a hole-transporting molecule: hexaaza[16]parabiphenylophane. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03802d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Shizu K, Sato T, Tanaka K. Inelastic electron tunneling spectra and vibronic coupling density analysis of 2,5-dimercapto-1,3,4-thiadiazole and tetrathiafulvalene dithiol. NANOSCALE 2010; 2:2186-2194. [PMID: 20714648 DOI: 10.1039/c0nr00212g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We calculate inelastic electron tunneling (IET) spectra for 2,5-dimercapto-1,3,4-thiadiazole (DMcT) and tetrathiafulvalene dithiol (TTF-DT) sandwiched between two gold electrodes using non-equilibrium Green's function (NEGF) theory. The calculated peak positions are in reasonable agreement with the experimental data. We also calculate IET spectrum for thiophene dithiol (Th-DT) sandwiched between two gold electrodes and compare it with that for the Au/DMcT/Au junction. Th-DT and DMcT can be distinguished using the IET spectroscopy by the peak of the C-C stretching mode. The peak intensity in the IET spectra is analyzed using vibronic coupling density (VCD) analysis. For the Au/DMcT/Au junction, large distribution of electron-density difference Δρ(HOMO) on the C-N bond is responsible for the intense peak of the C-N stretching mode; on the other hand, for Au/TTF-DT/Au junction, large distribution of Δρ(HOMO) on the central C=C bond is responsible for the intense peak of the C=C stretching modes.
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Affiliation(s)
- Katsuyuki Shizu
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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42
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Silva V, Camargo L, Napolitano H, Pérez C, Camargo A. Theoretical investigation of the interaction of glycerol with aluminum and magnesium phthalocyanines. J Mol Graph Model 2010; 29:206-13. [DOI: 10.1016/j.jmgm.2010.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Revised: 06/10/2010] [Accepted: 06/17/2010] [Indexed: 11/29/2022]
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43
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Reduced vibronic coupling density and its application to bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF). Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Shizu K, Sato T, Tanaka K. Vibronic coupling density analysis for α-oligothiophene cations: A new insight for polaronic defects. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.03.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Jian RC, Tsai C, Hsu LC, Chen HL. Theoretical Study on Reaction Mechanisms and Kinetics of Cyanomidyl Radical with NO. J Phys Chem A 2010; 114:4655-63. [DOI: 10.1021/jp9104823] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruei-Ching Jian
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
| | - Chiitang Tsai
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
| | - Ling-Chieh Hsu
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
| | - Hui-Lung Chen
- Department of Chemistry and Institute of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan
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46
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Shizu K, Sato T, Tanaka K, Kaji H. Electron–vibration interactions in triphenylamine cation: Why are triphenylamine-based molecules good hole-transport materials? Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2009.12.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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48
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Vibronic Coupling Constant and Vibronic Coupling Density. SPRINGER SERIES IN CHEMICAL PHYSICS 2009. [DOI: 10.1007/978-3-642-03432-9_5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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49
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50
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Electron–vibration interactions in carrier-transport material: Vibronic coupling density analysis in TPD. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.04.084] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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