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Synthesis, Characterization, Crystal Structure and DFT Calculations of DysprosiumIII - (E)-Ethyl-4-(2-Hydroxybenzylidene Amino)Benzoate. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Durlak P, Latajka Z. Investigations of the hydrogen bond in the crystals of tropolone and thiotropolone via car‐parrinello and path integral molecular dynamics. J Comput Chem 2018; 40:671-687. [DOI: 10.1002/jcc.25753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Piotr Durlak
- Faculty of ChemistryUniversity of Wrocław Wrocław 50‐383 Poland
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Pašalić H, Aquino AJA, Tunega D, Haberhauer G, Gerzabek MH, Lischka H. Cation-π interactions in competition with cation microhydration: a theoretical study of alkali metal cation-pyrene complexes. J Mol Model 2017; 23:131. [PMID: 28337678 PMCID: PMC5364259 DOI: 10.1007/s00894-017-3302-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 02/27/2017] [Indexed: 11/19/2022]
Abstract
Cation–π interactions were systematically investigated for the adsorption of H+ and alkali metal cations M+ to pyrene by means of Møller–Plesset perturbation theory (MP2) and density functional theory (DFT). The main aims were to determine the preferred adsorption sites and how the microhydration shell influences the adsorption process. The preferred adsorption sites were characterized in terms of structural parameters and energetic stability. Stability analysis of the M+–pyrene complexes revealed that the binding strength and the barrier to transitions between neighboring sites generally decreased with increasing cation size from Li+ to Cs+. Such transitions were practically barrierless (<<1 kcal/mol) for the large Rb+ and Cs+ ions. Further, the influence of the first hydration shell on the adsorption behavior was investigated for Li+ and K+ as representatives of small and large (alkali metal) cations, respectively. While the isolated complexes possessed only one minimum, two minima—corresponding to an inner and an outer complex—were observed for microhydrated complexes. The small Li+ ion formed a stable hydration shell and preferentially interacted with water rather than pyrene. In contrast, K+ favored cation–π over cation–water interactions. It was found that the mechanism for complex formation depends on the balance between cation–π interactions, cation–water complexation, and the hydrogen bonding of water to the π-system.
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Affiliation(s)
- Hasan Pašalić
- Institute for Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Adelia J A Aquino
- School of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, People's Republic of China.,Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, 1190, Vienna, Austria
| | - Daniel Tunega
- Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, 1190, Vienna, Austria.
| | - Georg Haberhauer
- Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, 1190, Vienna, Austria
| | - Martin H Gerzabek
- Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, 1190, Vienna, Austria
| | - Hans Lischka
- Institute for Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria. .,School of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, People's Republic of China.
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Li X, Yan L, Yue B. Maleimide: a potential building block for the design of proton exchange membranes studied by ab initio molecular dynamics simulations. RSC Adv 2015. [DOI: 10.1039/c5ra14272e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ab initio molecular dynamics (AIMD) simulations are applied to the study of proton transport in solid state maleimide.
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Affiliation(s)
- Xuejiao Li
- Department of Chemistry
- College of Sciences
- Shanghai University
- Shanghai 20044
- China
| | - Liuming Yan
- Department of Chemistry
- College of Sciences
- Shanghai University
- Shanghai 20044
- China
| | - Baohua Yue
- Department of Chemistry
- College of Sciences
- Shanghai University
- Shanghai 20044
- China
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