1
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Carella A, Landi A, Bonomo M, Chiarella F, Centore R, Peluso A, Nejrotti S, Barra M. Asymmetrical Diketopyrrolopyrrole Derivatives with Improved Solubility and Balanced Charge Transport Properties. Molecules 2024; 29:2805. [PMID: 38930874 PMCID: PMC11207042 DOI: 10.3390/molecules29122805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
The diketopyrrolopyrrole (DPP) unit represents one of the building blocks more widely employed in the field of organic electronics; in most of the reported DPP-based small molecules, this unit represents the electron acceptor core symmetrically coupled to donor moieties, and the solubility is guaranteed by functionalizing lactamic nitrogens with long and branched alkyl tails. In this paper, we explored the possibility of modulating the solubility by realizing asymmetric DPP derivatives, where the molecular structure is extended in just one direction. Four novel derivatives have been prepared, characterized by a common dithyenil-DPP fragment and functionalized on one side by a thiophene unit linked to different auxiliary electron acceptor groups. As compared to previously reported symmetric analogs, the novel dyes showed an increased solubility in chloroform and proved to be soluble in THF as well. The novel dyes underwent a thorough optical and electrochemical characterization. Electronic properties were studied at the DFT levels. All the dyes were used as active layers in organic field effect transistors, showing balanced charge transport properties.
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Affiliation(s)
- Antonio Carella
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli ‘Federico II’, Complesso Universitario Monte Sant’Angelo, Via Cintia 21, 80126 Napoli, Italy;
| | - Alessandro Landi
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy; (A.L.); (A.P.)
| | - Matteo Bonomo
- Department of Chemistry, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.B.); (S.N.)
- Nanomaterials for Industry and Sustainability (NIS) Interdepartmental Centre, Via G. Quarello 15A, 10135 Torino, Italy
| | - Fabio Chiarella
- CNR-Institute for Superconductors, Innovative Materials, and Devices, Dipartimento di Fisica “Ettore Pancini”, P. le Tecchio, 80, 80125 Napoli, Italy; (F.C.); (M.B.)
| | - Roberto Centore
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli ‘Federico II’, Complesso Universitario Monte Sant’Angelo, Via Cintia 21, 80126 Napoli, Italy;
| | - Andrea Peluso
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy; (A.L.); (A.P.)
| | - Stefano Nejrotti
- Department of Chemistry, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.B.); (S.N.)
- Nanomaterials for Industry and Sustainability (NIS) Interdepartmental Centre, Via G. Quarello 15A, 10135 Torino, Italy
| | - Mario Barra
- CNR-Institute for Superconductors, Innovative Materials, and Devices, Dipartimento di Fisica “Ettore Pancini”, P. le Tecchio, 80, 80125 Napoli, Italy; (F.C.); (M.B.)
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2
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Liu Z, Song Z, Sun X. All-Atom Photoinduced Charge Transfer Dynamics in Condensed Phase via Multistate Nonlinear-Response Instantaneous Marcus Theory. J Chem Theory Comput 2024; 20:3993-4006. [PMID: 38657208 PMCID: PMC11099976 DOI: 10.1021/acs.jctc.4c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/30/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024]
Abstract
Photoinduced charge transfer (CT) in the condensed phase is an essential component in solar energy conversion, but it is challenging to simulate such a process on the all-atom level. The traditional Marcus theory has been utilized for obtaining CT rate constants between pairs of electronic states but cannot account for the nonequilibrium effects due to the initial nuclear preparation. The recently proposed instantaneous Marcus theory (IMT) and its nonlinear-response formulation allow for incorporating the nonequilibrium nuclear relaxation to electronic transition between two states after the photoexcitation from the equilibrium ground state and provide the time-dependent rate coefficient. In this work, we extend the nonlinear-response IMT method for treating photoinduced CT among general multiple electronic states and demonstrate it in the organic photovoltaic carotenoid-porphyrin-fullerene triad dissolved in explicit tetrahydrofuran solvent. All-atom molecular dynamics simulations were employed to obtain the time correlation functions of energy gaps, which were used to generate the IMT-required time-dependent averages and variances of the relevant energy gaps. Our calculations show that the multistate IMT could capture the significant nonequilibrium effects due to the initial nuclear state preparation, and this is corroborated by the substantial differences between the population dynamics predicted by the multistate IMT and the Marcus theory, where the Marcus theory underestimates the population transfer. The population dynamics by multistate IMT is also shown to have a better agreement with the all-atom nonadiabatic mapping dynamics than the Marcus theory does. Because the multistate nonlinear-response IMT is straightforward and cost-effective in implementation and accounts for the nonequilibrium nuclear effects, we believe this method offers a practical strategy for studying charge transfer dynamics in complex condensed-phase systems.
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Affiliation(s)
- Zengkui Liu
- Division
of Arts and Sciences, NYU Shanghai, 567 West Yangsi Road, Shanghai 200124, China
- NYU-ECNU
Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Road North, Shanghai 200062, China
- Department
of Chemistry, New York University, New York, New York 10003, United States
| | - Zailing Song
- Division
of Arts and Sciences, NYU Shanghai, 567 West Yangsi Road, Shanghai 200124, China
| | - Xiang Sun
- Division
of Arts and Sciences, NYU Shanghai, 567 West Yangsi Road, Shanghai 200124, China
- NYU-ECNU
Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Road North, Shanghai 200062, China
- Department
of Chemistry, New York University, New York, New York 10003, United States
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3
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Ambrosio F, Wiktor J, Landi A, Peluso A. Charge Localization in Acene Crystals from Ab Initio Electronic Structure. J Phys Chem Lett 2023; 14:3343-3351. [PMID: 36994951 PMCID: PMC10084468 DOI: 10.1021/acs.jpclett.3c00191] [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: 01/20/2023] [Accepted: 03/10/2023] [Indexed: 06/19/2023]
Abstract
The performance of Koopmans-compliant hybrid functionals in reproducing the electronic structure of organic crystals is tested for a series of acene crystals. The calculated band gaps are found to be consistent with those achieved with the GW method at a fraction of the computational cost and in excellent accord with the experimental results at room temperature, when including the thermal renormalization. The energetics of excess holes and electrons reveals a struggle between polaronic localization and band-like delocalization. The consequences of these results on the transport properties of acene crystals are discussed.
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Affiliation(s)
- Francesco Ambrosio
- Dipartimento
di Chimica e Biologia Adolfo Zambelli, Università
di Salerno, Via Giovanni Paolo II, I-84084 Fisciano (SA), Italy
- Dipartimento
di Scienze, Università degli Studi
della Basilicata, Viale
dell’Ateneo Lucano, 10-85100 Potenza, Italy
| | - Julia Wiktor
- Department
of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Alessandro Landi
- Dipartimento
di Chimica e Biologia Adolfo Zambelli, Università
di Salerno, Via Giovanni Paolo II, I-84084 Fisciano (SA), Italy
| | - Andrea Peluso
- Dipartimento
di Chimica e Biologia Adolfo Zambelli, Università
di Salerno, Via Giovanni Paolo II, I-84084 Fisciano (SA), Italy
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4
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Electron Transfer Rates in Solution: Toward a Predictive First Principle Approach. CHEMISTRY 2023. [DOI: 10.3390/chemistry5010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Using a very recently proposed theoretical model, electron transfer rates in solution are calculated from first principles for different donor-acceptor pairs in tetrahydrofuran. We show that this approach, which integrates tunneling effects into a classical treatment of solvent motion, is able to provide reliable rate constants and their temperature dependence, even in the case of highly exergonic reactions, where Marcus’ theory usually fails.
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5
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Leo A, Peluso A. Electron Transfer Rates in Polar and Non-Polar Environments: a Generalization of Marcus' Theory to Include an Effective Treatment of Tunneling Effects. J Phys Chem Lett 2022; 13:9148-9155. [PMID: 36166392 PMCID: PMC9549518 DOI: 10.1021/acs.jpclett.2c02343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
A multistep kinetic model in which solvent motion is treated in the framework of Marcus theory and the rates of the elementary electron transfer step are evaluated at full quantum mechanical level is proposed and applied to the calculation of the rates of intramolecular electron transfer reactions in rigidly spaced D-Br-A (D = 1,1'-biphenyl radical anion, Br = androstane) compounds, for five acceptors (A) in three organic solvents with different polarity. The calculated rates agree well with experimental ones, and their temperature dependence is almost quantitatively reproduced.
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6
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Parisi E, Landi A, Fusco S, Manfredi C, Peluso A, Wahler S, Klapötke TM, Centore R. High-Energy-Density Materials: An Amphoteric N-Rich Bis(triazole) and Salts of Its Cationic and Anionic Species. Inorg Chem 2021; 60:16213-16222. [PMID: 34636552 PMCID: PMC8564754 DOI: 10.1021/acs.inorgchem.1c02002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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The synthesis and
characterization of the N-rich bis(triazole)
compound 1H,4′H-[3,3′-bis(1,2,4-triazole)]-4′,5,5′-triamine
(C4H7N9) with a N content of 69.6%
by weight is reported. The compound exhibits a rich acid–base
behavior because it can accept up to two protons, forming a monocation
and a dication, and can lose one proton, forming an anion. Measurement
of the acid constants has shown that there exist well-defined pH intervals
in which each of the four species is predominant in solution, opening
the way to their isolation and characterization by single-crystal
X-ray analysis as salts with different counterions. Some energetic
salts of the monocation or dication containing oxidizing inorganic
counterions (dinitramide, perchlorate, and nitrate) were also prepared
and characterized in the solid state for their sensitivity. In particular,
the neutral compound shows a very remarkable thermal stability in
air, with Td = 347 °C, and is insensitive
to impact and friction. Salts of the dication with energetic counterions,
in particular perchlorate and nitrate, show increased sensitivities
and reduced thermal stability. The salt of the monocation with dinitramide
as the counterion outperforms other dinitramide salts reported in
the literature because of its higher thermal stability (Td = 230 °C in air) and friction insensitiveness. An energetic, N-rich compound that, depending
on the pH,
can exist as neutral, singly protonated, doubly protonated, and deprotonated
species is shown.
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Affiliation(s)
- Emmanuele Parisi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, I-80126 Naples, Italy
| | - Alessandro Landi
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Sandra Fusco
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, I-80126 Naples, Italy
| | - Carla Manfredi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, I-80126 Naples, Italy
| | - Andrea Peluso
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Salerno, Italy
| | - Sabrina Wahler
- Department of Chemistry, Energetic Materials Research, Ludwig-Maximilian University, Butenandtstrasse 5-13, D-81377 Münich, Germany
| | - Thomas M Klapötke
- Department of Chemistry, Energetic Materials Research, Ludwig-Maximilian University, Butenandtstrasse 5-13, D-81377 Münich, Germany
| | - Roberto Centore
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, I-80126 Naples, Italy
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7
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Zhang Z, Qi N, Wu Y, Chen Z. Pressure-Induced Enhancement of Thermoelectric Performance in Rubrene. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44409-44417. [PMID: 34515463 DOI: 10.1021/acsami.1c12832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this work, the thermoelectric performance of a typical small-molecule organic semiconductor rubrene under different hydrostatic pressures was studied by first-principles calculation and molecular dynamics simulation. The ZT value of rubrene can reach 1.6 at 400 K due to an unprecedented increase in hole mobility under hydrostatic pressure. The underlying mechanism is ascribed to the suppression of low-frequency phonons (which weakens electron-phonon scattering) and the increase in the intermolecular electronic coupling. The effect of uniaxial stress has also been investigated to confirm this conclusion. Our results provide meaningful insights to understand the relationship between thermoelectric properties and hydrostatic pressure in organic semiconductors.
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Affiliation(s)
- Ziye Zhang
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, China
| | - Ning Qi
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, China
| | - Yichu Wu
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, China
| | - Zhiquan Chen
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, China
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8
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Debata S, Sahoo SR, Khatua R, Sahu S. Rational design and crystal structure prediction of ring-fused double-PDI compounds as n-channel organic semiconductors: a DFT study. Phys Chem Chem Phys 2021; 23:12329-12339. [PMID: 34019042 DOI: 10.1039/d1cp00008j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we present an effective molecular design strategy to develop the n-type charge transport characteristics in organic semiconductors, using ring-fused double perylene diimides (DPDIs) as the model compounds. These dimeric-PDIs are formed by joining two separate PDI-units along their bay positions through ring fusion with pyrene, coronene and their N-doped counterparts. The bridging type has a significant steric effect at the annulation positions and controls the molecular geometry, mostly imposing buckling in the structure. The crystal structures of the designed compounds are also theoretically predicted. Thereafter, electronic structure parameters, molecular packing motifs, charge coupling strength and anisotropic mobilities were investigated to understand the charge transport efficiency of these systems. Among all the studied molecules, the 4N-coronene-fused DPDI (DPDI-6) is found to possess a lower LUMO level and a high EA, suggesting air-stable electron injection. Besides, DPDI-6 shows strong intermolecular electron coupling and possesses high electron mobility (μe = 5.31 × 10-2 cm2 V-1 s-1), which is better as compared with the other DPDI-compounds reported here. The DPDIs also possess optical absorption in the UV-visible region, opening up possible applications in organic photovoltaics. Besides, from the non-linear optical (NLO) analysis, DPDI-3 is found to possess the highest first-order hyperpolarizability, which is even better as compared with the reference compound urea, making it a promising candidate for NLO applications.
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Affiliation(s)
- Suryakanti Debata
- High Performance Computing lab, Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
| | - Smruti R Sahoo
- High Performance Computing lab, Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
| | - Rudranarayan Khatua
- High Performance Computing lab, Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
| | - Sridhar Sahu
- High Performance Computing lab, Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
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9
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Borrelli R, Dolgov S. Expanding the Range of Hierarchical Equations of Motion by Tensor-Train Implementation. J Phys Chem B 2021; 125:5397-5407. [DOI: 10.1021/acs.jpcb.1c02724] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raffaele Borrelli
- DISAFA, University of Torino, Largo Paolo Braccini 2, Grugliasco 10095, Italy
| | - Sergey Dolgov
- University of Bath, Claverton Down, BA2 7AY Bath, United Kingdom
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10
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Borrelli R, Gelin MF. Finite temperature quantum dynamics of complex systems: Integrating
thermo‐field
theories and
tensor‐train
methods. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2021. [DOI: 10.1002/wcms.1539] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Maxim F. Gelin
- School of Sciences Hangzhou Dianzi University Hangzhou China
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11
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Landi A, Peluso A, Troisi A. Quantitative Prediction of the Electro-Mechanical Response in Organic Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008049. [PMID: 33598958 DOI: 10.1002/adma.202008049] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Organic semiconductors' inherent flexibility makes them appealing for advanced applications such as wearable electronics, e-skins, or pressure sensors, and can even be used to enhance their intrinsic electronic properties. Unfortunately, these applications for organic materials are currently hindered by the lack of a quantitative understanding of the interplay between their electrical and mechanical properties. In this work, this gap is filled by presenting an accurate methodology able to predict quantitatively the effects of external deformation on the charge transport properties of any organic semiconductors. Three prototypical materials are investigated, showing that the experimental variation of charge carrier mobility with strain is fully reproduced, even in a wide range of deformations applied along different crystal axes. The results indicate that the intrinsic electro-mechanical response of the materials varies by orders of magnitude within the class of organic semiconductors, a difference rationalized observing that the mobility trend is primarily influenced by the transfer integrals' variation, rather than by a modification of the crystal phonons. In light of its robustness, accuracy, and low computational cost, this protocol represents an ideal tool to quantify the electro-mechanical response in new organic compounds, thus establishing a reliable route for a full exploitation of strain engineering in advanced technologies.
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Affiliation(s)
- Alessandro Landi
- Dipartimento di Chimica e Biologia, Università di Salerno, Fisciano, Salerno, I-84084, Italy
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia, Università di Salerno, Fisciano, Salerno, I-84084, Italy
| | - Alessandro Troisi
- Department of Chemistry, University of Liverpool, Liverpool, L69 3BX, UK
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12
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Velardo A, Landi A, Borrelli R, Peluso A. Reliable Predictions of Benzophenone Singlet-Triplet Transition Rates: A Second-Order Cumulant Approach. J Phys Chem A 2021; 125:43-49. [PMID: 33369419 DOI: 10.1021/acs.jpca.0c07848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fermi golden rule and second-order cumulant expansion of the time-dependent density matrix have been used to compute from first principles the rate of intersystem crossing in benzophenone, using minimum-energy geometries and normal modes of vibrations computed at the TDDFT/CAM-B3LYP level. Both approaches yield reliable values of the S1 decay rate, the latter being almost in quantitative agreement with the results of time-dependent spectroscopic measurements (0.154 ps-1 observed vs 0.25 ps-1 predicted). The Fermi golden rule slightly overestimates the decay rate of S1 state (kd = 0.45 ps-1) but provides better insights into the chemico-physical parameters, which govern the transition from a thermally equilibrated population of S1, showing that the indirect mechanism is much faster than the direct one because of the vanishingly small Franck-Condon weighted density of states at ΔE of transition.
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Affiliation(s)
- Amalia Velardo
- Department of Chemistry, University of Torino, Via P. Giuria, 7, 10125 Torino, Italy.,Dipartimento di Chimica e Biologia Adolfo Zambelli, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, Italy
| | - Alessandro Landi
- Dipartimento di Chimica e Biologia Adolfo Zambelli, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, Italy
| | - Raffaele Borrelli
- Department of Agricultural, Forestry and Food Science, University of Torino, I-10195 Grugliasco, Italy
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia Adolfo Zambelli, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, Italy
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13
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Moitra T, Karak P, Chakraborty S, Ruud K, Chakrabarti S. Behind the scenes of spin-forbidden decay pathways in transition metal complexes. Phys Chem Chem Phys 2021; 23:59-81. [PMID: 33319894 DOI: 10.1039/d0cp05108j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The interpretation of the ultrafast photophysics of transition metal complexes following photo-absorption is quite involved as the heavy metal center leads to a complicated and entangled singlet-triplet manifold. This opens up multiple pathways for deactivation, often with competitive rates. As a result, intersystem crossing (ISC) and phosphorescence are commonly observed in transition metal complexes. A detailed understanding of such an excited-state structure and dynamics calls for state-of-the-art experimental and theoretical methodologies. In this review, we delve into the inability of non-relativistic quantum theory to describe spin-forbidden transitions, which can be overcome by taking into account spin-orbit coupling, whose importance grows with increasing atomic number. We present the quantum chemical theory of phosphorescence and ISC together with illustrative examples. Finally, a few applications are highlighted, bridging the gap between theoretical studies and experimental applications, such as photofunctional materials.
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Affiliation(s)
- Torsha Moitra
- DTU Chemistry, Technical University of Denmark, Kemitorvet Bldg 207, DK-2800 Kongens Lyngby, Denmark
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14
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Nematiaram T, Troisi A. Modeling charge transport in high-mobility molecular semiconductors: Balancing electronic structure and quantum dynamics methods with the help of experiments. J Chem Phys 2020; 152:190902. [DOI: 10.1063/5.0008357] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Tahereh Nematiaram
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Alessandro Troisi
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, United Kingdom
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15
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Borrelli R. Density matrix dynamics in twin-formulation: An efficient methodology based on tensor-train representation of reduced equations of motion. J Chem Phys 2019; 150:234102. [PMID: 31228887 DOI: 10.1063/1.5099416] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The twin-formulation of quantum statistical mechanics is employed to describe a new methodology for the solution of the equations of motion of the reduced density matrix in their hierarchical formulation. It is shown that the introduction of tilde operators and of their algebra in the dual space greatly simplifies the application of numerical techniques for the propagation of the density matrix. The application of tensor-train representation of a vector to solve complex quantum dynamical problems within the framework of the twin-formulation is discussed. Next, applications of the hierarchical equations of motion to a dissipative polaron model are presented showing the validity and accuracy of the new approach.
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16
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Landi A, Borrelli R, Capobianco A, Peluso A. Transient and Enduring Electronic Resonances Drive Coherent Long Distance Charge Transport in Molecular Wires. J Phys Chem Lett 2019; 10:1845-1851. [PMID: 30939015 DOI: 10.1021/acs.jpclett.9b00650] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
It is shown that the yields of oxidative damage observed in double-stranded DNA oligomers consisting of two guanines separated by adenine-thymine (A:T) n bridges of various lengths are reliably accounted for by a multistep mechanism, in which transient and nontransient electronic resonances induce charge transport and solvent relaxation stabilizes the hole transfer products. The proposed multistep mechanism leads to results in excellent agreement with the observed yield ratios for both the short and the long distance regime; the almost distance independence of yield ratios for longer bridges ( n ≥ 3) is the consequence of the significant energy decrease of the electronic levels of the bridge, which, as the bridge length increases, become quasi-degenerate with those of the acceptor and donor groups (enduring resonance). These results provide significant guidelines for the design of novel DNA sequences to be employed in organic electronics.
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Affiliation(s)
- Alessandro Landi
- Dipartimento di Chimica e Biologia , Università di Salerno , I-84084 Fisciano , Salerno , Italy
| | - Raffaele Borrelli
- Department of Agricultural, Forestry and Food Science , University of Torino , Via Leonardo da Vinci 44 , I-10095 Grugliasco , Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia , Università di Salerno , I-84084 Fisciano , Salerno , Italy
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia , Università di Salerno , I-84084 Fisciano , Salerno , Italy
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17
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de Candia A, De Filippis G, Cangemi LM, Mishchenko AS, Nagaosa N, Cataudella V. Two-channel model for optical conductivity of high-mobility organic crystals. ACTA ACUST UNITED AC 2019. [DOI: 10.1209/0295-5075/125/47002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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