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Choi J, Kim H. Spin-Flip Density Functional Theory for the Redox Properties of Organic Photoredox Catalysts in Excited States. J Chem Theory Comput 2021; 17:767-776. [PMID: 33449691 DOI: 10.1021/acs.jctc.0c00850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Photoredox catalysts (PCs) have contributed to the advancement of organic chemistry by accelerating conventional reactions and enabling new pathways through the use of reactive electrons in excited states. With a number of successful applications, chemists continue to seek new promising organic PCs to achieve their objectives. Instead of labor-intensive manual experimentation, quantum chemical simulations could explore the enormous chemical space more efficiently. The reliability and accuracy of quantum chemical simulations have become important factors for material screening. We designed a theoretical protocol capable of predicting redox properties in excited states with high accuracy for a selected model system of dihydroquinoxalino[2,3-b]quinoxaline derivatives. Herein, three factors were considered as critical to achieving reliable predictions with accurate physics: the solvent medium effect on excited-state geometries, an adequate amount of Hartree-Fock exchange (HFX), and the consideration of double-excitation character in excited states. We determined that it is necessary to incorporate solvent medium during geometry optimizations to obtain planar excited-state structures that are consistent with the experimentally observed modest Stokes shift. While density functionals belonging to the generalized gradient approximation family perform well for the prediction of photoelectrochemical properties, an incorrect description of exciton boundedness (spontaneous dissociation of excitons or extremely weak boundedness) on small organic molecules was predicted. The inclusion of an adequate amount of Hartree-Fock exchange was suggested as one approach to obtain bound excitons, which is physically reasonable. The last consideration is the double-excitation character in S1 states. As revealed by the second-order algebraic diagrammatic construction theory, non-negligible double excitations exist in S1 states in our model systems. Time-dependent density functional theory (TDDFT) is blind to doubly excited states, and this motivated us to use spin-flip DFT (SF-DFT). We established a theoretical protocol that could provide highly accurate estimations of photophysical properties and ground-/excited-state redox properties, focusing on the three factors mentioned above. Geometry optimization with DFT and TDDFT employing the B3LYP functional (20% HFX) in solution and energy refinement by SF-DFT reproduced the experimental redox properties in the excited and ground states remarkably well with mean signed deviations (MSDs) of 0.01 and -0.15 V, respectively. This theoretical protocol is expected to contribute to the understanding of exciton behavior in organic PCs and to the efficient design of new promising PC candidates.
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Affiliation(s)
- Jiyoon Choi
- Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.,Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.,Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
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2
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Capobianco A, Velardo A, Peluso A. Single-Stranded DNA Oligonucleotides Retain Rise Coordinates Characteristic of Double Helices. J Phys Chem B 2018; 122:7978-7989. [PMID: 30070843 DOI: 10.1021/acs.jpcb.8b04542] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structures of single-stranded DNA oligonucleotides from dimeric to hexameric sequences have been thoroughly investigated. Computations performed at the density functional level of theory including dispersion forces and solvation show that single-stranded helices adopt conformations very close to crystallographic B-DNA, with rise coordinates amounting up to 3.3 Å. Previous results, suggesting that single strands should be shorter than double helices, largely originated from the incompleteness of the adopted basis set. Although sensible deviations with respect to standard B-DNA are predicted, computations indicate that sequences rich in stacked adenines are the most ordered ones, favoring the B-DNA pattern and inducing regular arrangements also on flanking nucleobases. Several structural properties of double helices rich in adenine are indeed already reflected by the corresponding single strands.
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Affiliation(s)
- Amedeo Capobianco
- Dipartimento di Chimica e Biologia "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II , I-84084 Fisciano (SA) , Italy
| | - Amalia Velardo
- Dipartimento di Chimica e Biologia "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II , I-84084 Fisciano (SA) , Italy
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II , I-84084 Fisciano (SA) , Italy
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3
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Della Sala P, Capobianco A, Caruso T, Talotta C, De Rosa M, Neri P, Peluso A, Gaeta C. An Anthracene-Incorporated [8]Cycloparaphenylene Derivative as an Emitter in Photon Upconversion. J Org Chem 2018; 83:220-227. [PMID: 29231727 DOI: 10.1021/acs.joc.7b02590] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The anthracene-incorporated [8]cycloparaphenylene 2 has been synthesized and its optoelectronic properties studied by UV-vis spectroscopy, cyclic voltammetry, and DFT calculations. NMR and computational studies indicate that the new cycloparaphenylene derivative possesses a Cs point group symmetry. The new CPP 2 exhibits peculiar optoelectronic properties: (i) fluorescence emission is blue-shifted with respect to [8]cycloparaphenylene 1, and its quantum yield is higher; (ii) in the presence of an octaethylporphyrin Pd complex, as sensitizer, it undergoes a visible light upconversion. This is the first case in which a cycloparaphenylene derivative is involved as an emitter in low power light frequency conversion.
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Affiliation(s)
- Paolo Della Sala
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Tonino Caruso
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
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Jankowski P, Wieczorek W, Johansson P. SEI-forming electrolyte additives for lithium-ion batteries: development and benchmarking of computational approaches. J Mol Model 2017; 23:6. [PMID: 27966017 PMCID: PMC5155019 DOI: 10.1007/s00894-016-3180-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/28/2016] [Indexed: 11/23/2022]
Abstract
SEI-forming additives play an important role in lithium-ion batteries, and the key to improving battery functionality is to determine if, how, and when these additives are reduced. Here, we tested a number of computational approaches and methods to determine the best way to predict and describe the properties of the additives. A wide selection of factors were evaluated, including the influences of the solvent and lithium cation as well as the DFT functional and basis set used. An optimized computational methodology was employed to assess the usefulness of different descriptors.
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Affiliation(s)
- Piotr Jankowski
- Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland.
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France.
| | - Władysław Wieczorek
- Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France
| | - Patrik Johansson
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France
- Laboratoire de Réactivité et Chimie des Solides, CNRS UMR 7314, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039, Amiens, France
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Deka BC, Purkayastha SK, Sharma H, Bhattacharyya PK. Ground and excited states of neutral and cationic thieno[3,2-b]thiophene: A DFT study. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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6
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Capobianco A, Borrelli R, Landi A, Velardo A, Peluso A. Absorption Band Shapes of a Push–Pull Dye Approaching the Cyanine Limit: A Challenging Case for First Principle Calculations. J Phys Chem A 2016; 120:5581-9. [DOI: 10.1021/acs.jpca.6b05220] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Amedeo Capobianco
- Dipartimento
di Chimica e Biologia, Università di Salerno, Via G. Paolo
II, I-84084 Fisciano (SA), Italy
| | - Raffaele Borrelli
- Dipartimento
di Scienze Agrarie, Forestali e Alimentari, Università di Torino, Largo Paolo Braccini, 2, I-10095 Grugliasco (TO), Italy
| | - Alessandro Landi
- Dipartimento
di Chimica e Biologia, Università di Salerno, Via G. Paolo
II, I-84084 Fisciano (SA), Italy
| | - Amalia Velardo
- Dipartimento
di Chimica e Biologia, Università di Salerno, Via G. Paolo
II, I-84084 Fisciano (SA), Italy
| | - Andrea Peluso
- Dipartimento
di Chimica e Biologia, Università di Salerno, Via G. Paolo
II, I-84084 Fisciano (SA), Italy
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Wang J, He F, Li Y, Sun H. New insights into isopropylthiobenzene decomposition in supercritical water. RSC Adv 2016. [DOI: 10.1039/c6ra20955f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Water acts as a catalyst and a reactant and alkanes could promote the decomposition of isopropylthiobenzene in SCW.
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Affiliation(s)
- Jianxiong Wang
- Key Lab for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Fan He
- Key Lab for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Yonghong Li
- Key Lab for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Hongwei Sun
- Department of Chemistry
- Nankai University
- Tianjin 300071
- PR China
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Liu C, Si Y, Shi S, Yang G, Pan X. Understanding the photophysical properties of chiral dinuclear Re(i) complexes and the role of Re(i) in their complexes. Dalton Trans 2016; 45:7285-93. [DOI: 10.1039/c6dt00089d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated the electronic structure, UV-Vis/CD spectra and the second-order NLO properties of chiral dinuclear Re(i) complexes and elucidated structure–property relationships with the aid of DFT calculations.
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Affiliation(s)
- Chunyu Liu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yanling Si
- College of Resource and Environmental Science
- Jilin Agricultural University
- Changchun
- P. R. China
| | - Shaoqing Shi
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Guochun Yang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Xiumei Pan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
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