1
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Thompson LM, Kempfer-Robertson EM, Saha S, Parmar S, Kozlowski PM. Nonorthogonal Multireference Wave Function Description of Triplet-Triplet Energy Transfer Couplings. J Chem Theory Comput 2023; 19:7685-7694. [PMID: 37862602 DOI: 10.1021/acs.jctc.3c00898] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
In this study, the use of self-consistent field quasi-diabats is investigated for calculation of triplet energy transfer diabatic coupling elements. It is proposed that self-consistent field quasi-diabats are particularly useful for studying energy transfer (EnT) processes because orbital relaxation in response to changes in electron configuration is implicitly built into the model. The conceptual model that is developed allows for the simultaneous evaluation of direct and charge-transfer mechanisms to establish the importance of the different possible EnT mechanisms. The method's performance is evaluated using two model systems: the ethylene dimer and ethylene with the methaniminium cation. While states that mediate the charge-transfer mechanism were found to be higher in energy than the states involved in the direct mechanism, the coupling elements that control the kinetics were found to be significantly larger in the charge-transfer mechanism. Subsequently, we discuss the advantage of the approach in the context of practical difficulties with the use of established approaches.
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Affiliation(s)
- Lee M Thompson
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40929, United States
| | | | - Saptarshi Saha
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40929, United States
| | - Saurav Parmar
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40929, United States
| | - Pawel M Kozlowski
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40929, United States
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2
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Huizenga C, Hratchian HP, Jarrold CC. Lanthanide Oxides: From Diatomics to High-Spin, Strongly Correlated Homo- and Heterometallic Clusters. J Phys Chem A 2021; 125:6315-6331. [PMID: 34265204 DOI: 10.1021/acs.jpca.1c04253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Small lanthanide (Ln) oxide clusters present both experimental and theoretical challenges because of their partially filled, core-like 4f n orbitals, a feature that results in a plethora of close-lying and fundamentally similar electronic states. These clusters provide a bottom-up approach toward understanding the electronic structure of defective or doped bulk material but also can offer a challenge to the theorists to find a method robust enough to capture electronic structure patterns that emerge from within the 4f n (0 < n < 14) series. In this Feature Article, we explore the electronic structures of small lanthanide oxide clusters that deviate from bulk stoichiometry using anion photoelectron spectroscopy and supporting density functional theory calculations. We will describe the evolution of electronic structure with oxidation and how LnxOy- cluster reactivities can be correlated with specific Ln-local orbital occupancies. These strongly correlated systems offer additional insights into how interactions between electrons and electronically complex neutrals can lead to detachment transitions that lie outside of the sudden one-electron detachment approximation generally assumed in anion photoelectron spectroscopy. With a better understanding of how we can control nominally forbidden transitions to sample an array of spin states, we suggest that more in-depth studies on the magnetic states of these systems can be explored. Extending these studies to other Ln-based materials with hidden magnetic phases, along with sequentially ligated single molecule magnets, could advance current understanding of these systems.
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Affiliation(s)
- Caleb Huizenga
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Hrant P Hratchian
- Department of Chemistry and Chemical Biology, University of California, Merced, 5200 North Lake Road, Merced, California 95343, United States
| | - Caroline Chick Jarrold
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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3
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Mason JL, Folluo CN, Jarrold CC. More than little fragments of matter: Electronic and molecular structures of clusters. J Chem Phys 2021; 154:200901. [DOI: 10.1063/5.0054222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jarrett L. Mason
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Carley N. Folluo
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Caroline Chick Jarrold
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
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4
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Harb H, Hratchian HP. ΔSCF Dyson orbitals and pole strengths from natural ionization orbitals. J Chem Phys 2021; 154:084104. [DOI: 10.1063/5.0040454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- Hassan Harb
- Department of Chemistry and Chemical Biology and Center for Chemical Computation and Theory, University of California, Merced, California 95343, USA
| | - Hrant P. Hratchian
- Department of Chemistry and Chemical Biology and Center for Chemical Computation and Theory, University of California, Merced, California 95343, USA
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5
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Abou Taka A, Babin MC, Sheng X, DeVine JA, Neumark DM, Hratchian HP. Unveiling the coexistence of cis- and trans-isomers in the hydrolysis of ZrO2: A coupled DFT and high-resolution photoelectron spectroscopy study. J Chem Phys 2020; 153:244308. [DOI: 10.1063/5.0037636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Ali Abou Taka
- Department of Chemistry & Chemical Biology, Center for Chemical Computation and Theory, University of California, Merced, California 95343, USA
| | - Mark C. Babin
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Xianghai Sheng
- Department of Chemistry & Chemical Biology, Center for Chemical Computation and Theory, University of California, Merced, California 95343, USA
| | - Jessalyn A. DeVine
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Daniel M. Neumark
- Department of Chemistry, University of California, Berkeley, California 94720, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Hrant P. Hratchian
- Department of Chemistry & Chemical Biology, Center for Chemical Computation and Theory, University of California, Merced, California 95343, USA
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6
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Kempfer-Robertson EM, Pike TD, Thompson LM. Difference projection-after-variation double-hybrid density functional theory applied to the calculation of vertical excitation energies. J Chem Phys 2020; 153:074103. [DOI: 10.1063/5.0017222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
| | - Thomas Dane Pike
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40205, USA
| | - Lee M. Thompson
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40205, USA
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7
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Ren G, Ha Y, Liu YS, Feng X, Zhang N, Yu P, Zhang L, Yang W, Feng J, Guo J, Liu X. Deciphering the Solvent Effect for the Solvation Structure of Ca 2+ in Polar Molecular Liquids. J Phys Chem B 2020; 124:3408-3417. [PMID: 32223137 DOI: 10.1021/acs.jpcb.0c02437] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the crystal structures for many inorganic compounds are readily available, researchers are still working hard to understand the relations between the structures and chemical properties of solutions because most of the chemical reactions take place in solutions. A huge amount of effort has been put toward modeling the ion solvation structure from the perspectives of both experiments and theories. In this study, the solvation structures of Ca2+ ions in aqueous and alcoholic solutions at different concentrations were carefully evaluated by Ca K-edge X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) analyses. Density functional theory (DFT) calculations were also performed to correlate the results with the experimental data and then further extended to other similar systems. It was found that the number of coordinating solvent molecules decreases with increasing Ca2+ concentration and increasing solvent molecule sizes. From the EXAFS data, it was observed that the first solvation shell of Ca2+ splits into two Ca-O distances in a methanol solution and the counter ion Cl- might also be within the first shell at high concentrations. For the first time, the effects of solvents with different polarities and sizes on the ion solvation environment were systematically evaluated.
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Affiliation(s)
- Guoxi Ren
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China.,CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai 200050, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Ha
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Yi-Sheng Liu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xuefei Feng
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Nian Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China.,CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai 200050, China
| | - Pengfei Yu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China.,CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai 200050, China
| | - Liang Zhang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou 215123, Jiangsu, China
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jun Feng
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xiaosong Liu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China.,CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai 200050, China.,School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
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8
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Sheng X, Thompson LM, Hratchian HP. Assessing the Calculation of Exchange Coupling Constants and Spin Crossover Gaps Using the Approximate Projection Model To Improve Density Functional Calculations. J Chem Theory Comput 2019; 16:154-163. [PMID: 31743016 DOI: 10.1021/acs.jctc.9b00387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work evaluates the quality of exchange coupling constant and spin crossover gap calculations using density functional theory corrected by the approximate projection model. Results show that improvements using the approximate projection model range from modest to significant. This study demonstrates that, at least for the class of systems examined here, spin projection generally improves the quality of density functional theory calculations of J-coupling constants and spin crossover gaps. Furthermore, it is shown that spin projection can be important for both geometry optimization and energy evaluations. The approximate projection model provides an affordable and practical approach for effectively correcting spin-contamination errors in such calculations.
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Affiliation(s)
- Xianghai Sheng
- Department of Chemistry and Chemical Biology & Center for Chemical Computation and Theory , University of California , Merced , California 95343 , United States
| | - Lee M Thompson
- Department of Chemistry and Chemical Biology & Center for Chemical Computation and Theory , University of California , Merced , California 95343 , United States.,Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Hrant P Hratchian
- Department of Chemistry and Chemical Biology & Center for Chemical Computation and Theory , University of California , Merced , California 95343 , United States
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9
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Harb H, Thompson LM, Hratchian HP. On the linear geometry of lanthanide hydroxide (Ln-OH, Ln = La–Lu). Phys Chem Chem Phys 2019; 21:21890-21897. [DOI: 10.1039/c9cp01560d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Density functional theory predicts that lanthanide hydroxides are linear, with the lanthanide-hydroxide bond being characterized as a covalent triple bond.
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Affiliation(s)
- Hassan Harb
- Department of Chemistry & Chemical Biology and the Center for Chemical Computation and Theory
- University of California
- California 95343
- USA
| | - Lee M. Thompson
- Department of Chemistry & Chemical Biology and the Center for Chemical Computation and Theory
- University of California
- California 95343
- USA
| | - Hrant P. Hratchian
- Department of Chemistry & Chemical Biology and the Center for Chemical Computation and Theory
- University of California
- California 95343
- USA
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10
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Manna S, Mishra S. Vibronic structure and photoelectron angular distribution in the photoelectron spectrum of ICN. J Chem Phys 2018; 149:204308. [DOI: 10.1063/1.5050461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Soumitra Manna
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Sabyashachi Mishra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India
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11
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Thompson LM. Global elucidation of broken symmetry solutions to the independent particle model through a Lie algebraic approach. J Chem Phys 2018; 149:194106. [DOI: 10.1063/1.5049827] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Lee M. Thompson
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40205, USA
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12
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DeVine JA, Abou Taka A, Babin MC, Weichman ML, Hratchian HP, Neumark DM. High-resolution photoelectron spectroscopy of TiO3H2−: Probing the TiO2− + H2O dissociative adduct. J Chem Phys 2018; 148:222810. [DOI: 10.1063/1.5018414] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Jessalyn A. DeVine
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Ali Abou Taka
- Chemistry and Chemical Biology, University of California, Merced, California 05343, USA
| | - Mark C. Babin
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Marissa L. Weichman
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Hrant P. Hratchian
- Chemistry and Chemical Biology, University of California, Merced, California 05343, USA
| | - Daniel M. Neumark
- Department of Chemistry, University of California, Berkeley, California 94720, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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13
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Affiliation(s)
- J. H. Marks
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - T. B. Ward
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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