1
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McCready C, Sladekova K, Conroy S, Gomes JR, Fletcher AJ, Jorge M. Quantifying the Uncertainty of Force Field Selection on Adsorption Predictions in MOFs. J Chem Theory Comput 2024; 20:4869-4884. [PMID: 38818701 PMCID: PMC11171284 DOI: 10.1021/acs.jctc.4c00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/21/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
Comparisons between simulated and experimental adsorption isotherms in MOFs are fraught with challenges. On the experimental side, there is significant variation between isotherms measured on the same system, with a significant percentage (∼20%) of published data being considered outliers. On the simulation side, force fields are often chosen "off-the-shelf" with little or no validation. The effect of this choice on the reliability of simulated adsorption predictions has not yet been rigorously quantified. In this work, we fill this gap by systematically quantifying the uncertainty arising from force field selection on adsorption isotherm predictions. We choose methane adsorption, where electrostatic interactions are negligible, to independently study the effect of the framework Lennard-Jones parameters on a series of prototypical materials that represent the most widely studied MOF "families". Using this information, we compute an adsorption "consensus isotherm" from simulations, including a quantification of uncertainty, and compare it against a manually curated set of experimental data from the literature. By considering many experimental isotherms measured by different groups and eliminating outliers in the data using statistical analysis, we conduct a rigorous comparison that avoids the pitfalls of the standard approach of comparing simulation predictions to a single experimental data set. Our results show that (1) the uncertainty in simulated isotherms can be as large as 15% and (2) standard force fields can provide reliable predictions for some systems but can fail dramatically for others, highlighting systematic shortcomings in those models. Based on this, we offer recommendations for future simulation studies of adsorption, including high-throughput computational screening of MOFs.
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Affiliation(s)
- Connaire McCready
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - Kristina Sladekova
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - Stuart Conroy
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - José R.
B. Gomes
- CICECO
− Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Ashleigh J. Fletcher
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - Miguel Jorge
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
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2
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Saha C, Huda MM, Sabuj MA, Rai N. Elucidating the structure of donor-acceptor conjugated polymer aggregates in liquid solution. SOFT MATTER 2024; 20:1824-1833. [PMID: 38305724 DOI: 10.1039/d3sm01458d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
High-spin donor-acceptor conjugated polymers are extensively studied for their potential applications in magnetic and spintronic devices. Inter-chain charge transfer among these high-spin polymers mainly depends on the nature of the local structure of the thin film and π-stacking between the polymer chains. However, the microscopic structural details of high-spin polymeric materials are rarely studied with an atomistic force field, and the molecular-level local structure in the liquid phase remains ambiguous. Here, we have examined the effects of oligomer chain length, side chain, and processing temperature on the organization of the high-spin cyclopentadithiophene-benzobisthiadiazole donor-acceptor conjugated polymer in chloroform solvent. We find that the oligomers display ordered aggregates whose structure depends on their chain length, with an average π-stacking distance of 3.38 ± 0.03 Å (at T = 298 K) in good agreement with the experiment. Also, the oligomers with longer alkyl side chains show better solvation and a shorter π-stacking distance. Furthermore, the clusters grow faster at higher temperature with more ordered aggregation between the oligomer chains.
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Affiliation(s)
- Chinmoy Saha
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular System, Mississippi State University, Mississippi State, MS-39762, USA.
| | - Md Masrul Huda
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular System, Mississippi State University, Mississippi State, MS-39762, USA.
| | - Md Abdus Sabuj
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular System, Mississippi State University, Mississippi State, MS-39762, USA.
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular System, Mississippi State University, Mississippi State, MS-39762, USA.
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3
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Parsaei M, Akhbari K, Tylianakis E, Froudakis GE. Effects of Fluorinated Functionalization of Linker on Quercetin Encapsulation, Release and Hela Cell Cytotoxicity of Cu-Based MOFs as Smart pH-Stimuli Nanocarriers. Chemistry 2024; 30:e202301630. [PMID: 37581254 DOI: 10.1002/chem.202301630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
Controlled delivery of target molecules is required in many medical and chemical applications. For such purposes, metal-organic frameworks (MOFs), which possess desirable features such as high porosity, large surface area, and adjustable functionalities, hold great potential as drug carriers. Herein, Quercetin (QU), as an anticancer drug, was loaded on Cu2 (BDC)2 (DABCO) and Cu2 (F4 BDC)2 )DABCO) MOFs (BDC=1,4-benzenedicarboxylate and DABCO=1,4-diazabicyclo[2.2.2]octane). As these Cu-MOFs have a high surface area, an appropriate pore size, and biocompatible ingredients, they can be utilized to deliver QU. The loading efficiency of QU in these MOFs was 49.5 % and 41.3 %, respectively. The drug-loaded compounds displayed sustained drug release over 15 days, remarkably high drug loading capacities and pH-controlled release behavior. The prepared nanostructures were characterized by different characterization technics including FT-IR, PXRD, ZP, TEM, FE-SEM, UV-vis, and BET. In addition, MTT assays were carried out on the HEK-293 and HeLa cell lines to investigate cytotoxicity. Cellular apoptosis analysis was performed to investigate the cell death mechanisms. Grand Canonical Monte Carlo simulations were conducted to analyze the interactions between MOFs and QU. Moreover, the stability of MOFs was also investigated during and after the drug release process. Ultimately, kinetic models of drug release were evaluated.
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Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Emmanuel Tylianakis
- Department of Materials Science and Technology, Voutes Campus, University of Crete, GR-71003 Heraklion, Crete, Greece
| | - George E Froudakis
- Department of Chemistry, Voutes Campus, University of Crete, GR-71003 Heraklion, Crete, Greece
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4
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Dedecker K, Drobek M, Julbe A. Effect of Ligand Aromaticity on Cyclohexane and Benzene Sorption in IRMOFs: A Computational Study. J Phys Chem B 2023; 127:11091-11099. [PMID: 38088922 DOI: 10.1021/acs.jpcb.3c06886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
A series of four isoreticular MOFs (IRMOF-1, -10, -14, and -16) were selected for a computational investigation of the effect of ligand aromaticity on the adsorption capacity of an aromatic VOC (benzene) compared to its nonaromatic analog (cyclohexane). The affinity of the adsorbates was evaluated by calculating Henry's constants and adsorption enthalpies. It has been evidenced that while KH values decrease with ligand elongation (IRMOF-10 and -16), inserting a pyrene core into the MOF structure (IRMOF-14) increases both the cyclohexane and benzene adsorption efficiency by ∼290 and 54%, respectively. To elucidate host-guest interactions, we sought to locate preferential adsorption sites in MOF structures for the two VOCs studied by using the GCMC method. It appears that benzene interacts with the metal center (Zn4O clusters) and most of the ligand while cyclohexane tends to localize preferentially only near the Zn4O clusters. Coadsorption isotherms (equimolar mixture of benzene and cyclohexane) demonstrated the preferential adsorption of cyclohexane due to the stronger affinity for the MOF structure. On the other hand, for other isoreticular structures, the ligand elongation leads to a shift of the adsorption curve of cyclohexane caused by pore size increase and therefore less interactions with the walls. This phenomenon is counterbalanced in the case of IRMOF-14 due to stronger interactions between the cyclohexane and pyrene groups. The present results thus open perspectives in the design of promising MOF candidates for high-performing separation and sorption/detection of hydrocarbon VOCs.
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Affiliation(s)
- Kevin Dedecker
- Institut Européen des Membranes (IEM), CNRS, ENSCM, Univ Montpellier, Place Eugène Bataillon, Montpellier 34095, France
| | - Martin Drobek
- Institut Européen des Membranes (IEM), CNRS, ENSCM, Univ Montpellier, Place Eugène Bataillon, Montpellier 34095, France
| | - Anne Julbe
- Institut Européen des Membranes (IEM), CNRS, ENSCM, Univ Montpellier, Place Eugène Bataillon, Montpellier 34095, France
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5
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Schmitt S, Kanagalingam G, Fleckenstein F, Froescher D, Hasse H, Stephan S. Extension of the MolMod Database to Transferable Force Fields. J Chem Inf Model 2023; 63:7148-7158. [PMID: 37947503 DOI: 10.1021/acs.jcim.3c01484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
MolMod, a web-based database for classical force fields for molecular simulations of fluids [Mol. Sim. 45, 10 (2019), 806-814], was extended to transferable force fields. Eight transferable force fields, including all-atom and united-atom type force fields, were implemented in the MolMod database: OPLS-UA, OPLS-AA, COMPASS, CHARMM, GROMOS, TraPPE, Potoff, and TAMie. These transferable force fields cover a large variety of chemical substance classes. The system is designed such that new transferable force fields can be readily integrated. A graphical user interface was implemented that enables the construction of molecules. The MolMod database compiles the force field for the specified component and force field type and provides the corresponding data and meta data as well as ready-to-use input files for the molecule for different simulation engines. This helps the user to flexibly choose molecular models and integrate them swiftly in their individual workflows, reducing risks of input errors in molecular simulations.
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Affiliation(s)
- Sebastian Schmitt
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
| | - Gajanan Kanagalingam
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
| | - Florian Fleckenstein
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
| | - Daniel Froescher
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
| | - Hans Hasse
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
| | - Simon Stephan
- Laboratory of Engineering Thermodynamics (LTD), RPTU Kaiserslautern, Kaiserslautern 67663, Germany
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6
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Biswas S, Chung Y, Ramirez J, Wu H, Green WH. Predicting Critical Properties and Acentric Factors of Fluids Using Multitask Machine Learning. J Chem Inf Model 2023; 63:4574-4588. [PMID: 37487557 DOI: 10.1021/acs.jcim.3c00546] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Knowledge of critical properties, such as critical temperature, pressure, density, as well as acentric factor, is essential to calculate thermo-physical properties of chemical compounds. Experiments to determine critical properties and acentric factors are expensive and time intensive; therefore, we developed a machine learning (ML) model that can predict these molecular properties given the SMILES representation of a chemical species. We explored directed message passing neural network (D-MPNN) and graph attention network as ML architecture choices. Additionally, we investigated featurization with additional atomic and molecular features, multitask training, and pretraining using estimated data to optimize model performance. Our final model utilizes a D-MPNN layer to learn the molecular representation and is supplemented by Abraham parameters. A multitask training scheme was used to train a single model to predict all the critical properties and acentric factors along with boiling point, melting point, enthalpy of vaporization, and enthalpy of fusion. The model was evaluated on both random and scaffold splits where it shows state-of-the-art accuracies. The extensive data set of critical properties and acentric factors contains 1144 chemical compounds and is made available in the public domain together with the source code that can be used for further exploration.
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Affiliation(s)
- Sayandeep Biswas
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yunsie Chung
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Josephine Ramirez
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Haoyang Wu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - William H Green
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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7
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Dedecker K, Drobek M, Rouessac V, Julbe A. A Palladium-Based MOF for the Preferential Sorption of Benzene. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6831-6838. [PMID: 36708327 DOI: 10.1021/acsami.2c20034] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Selective sorption of volatile aromatic compounds is a challenging issue for their total abatement. Despite the well-known affinity of palladium toward rich π systems, studies dedicated to volatile organic compound (VOC) capture with Pd(II)-based metal-organic frameworks (MOFs) are still very scarce. Intending to shed more light on this complex topic, this work compares the adsorption properties of two isostructural MOFs [Cu(2-pymo)2]n and [Pd(2-pymo)2]n and their selectivity for the sorption of linear, cyclic, or aromatic VOCs. The combination of both experimental and computational investigations highlights an increasing aromatic affinity over saturated hydrocarbons when palladium is chosen as a metal center (nBenzene/nn-hexane = 1.8 at 0.5 p/p0) in the MOF instead of copper (nBenzene/nn-hexane = 0.7 at 0.5 p/p0). Furthermore, [Pd(2-pymo)2]n clearly exhibits preferential adsorption of benzene over toluene (nBenzene/nToluene = 1.7 at 0.5 p/p0), due to the steric hindrance effects of the latter. The present results clearly underline the attractiveness of Pd-based MOFs for the design of selective aromatic adsorbents. Moreover, they also highlight the [Pd(2-pymo)2]n MOF as a relevant candidate for the selective capture of benzene, by a synergistic combination of both charge interactions and steric hindrance effects.
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Affiliation(s)
- Kevin Dedecker
- Institut Européen des Membranes (IEM), Univ Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier, France
| | - Martin Drobek
- Institut Européen des Membranes (IEM), Univ Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier, France
| | - Vincent Rouessac
- Institut Européen des Membranes (IEM), Univ Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier, France
| | - Anne Julbe
- Institut Européen des Membranes (IEM), Univ Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier, France
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8
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Fayaz-Torshizi M, Graham EJ, Adjiman CS, Galindo A, Jackson G, Müller EA. SAFT- γ Force Field for the Simulation of Molecular Fluids 9: Coarse-Grained Models for Polyaromatic Hydrocarbons Describing Thermodynamic, Interfacial, Structural, and Transport Properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Zeng W, (Johnathan) Tan S, Liu M, Zhang D, Liu L, Do D. New Insights into the Capture of Low-level Gaseous Pollutants in Indoor Environment by Carbonaceous Materials: Effects of Functional Groups, Pore Size, and Presence of Moist. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Bray DJ, Anderson RL, Warren PB, Lewtas K. Modeling Alkyl Aromatic Hydrocarbons with Dissipative Particle Dynamics. J Phys Chem B 2022; 126:5351-5361. [PMID: 35797469 PMCID: PMC9310027 DOI: 10.1021/acs.jpcb.2c02048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Building on previous work studying alkanes, we develop
a dissipative
particle dynamics (DPD) model to capture the behavior of the alkyl
aromatic hydrocarbon family under ambient conditions of 298 K and
1 atmosphere. Such materials are of significant worldwide industrial
importance in applications such as solvents, chemical intermediates,
surfactants, lubricating oils, hydraulic fluids, and greases. We model
both liquids and waxy solids for molecules up to 36 carbons in size
and demonstrate that we can correctly capture both the freezing transition
and liquid-phase densities in pure substances and mixtures. We also
demonstrate the importance of including specialized bead types into
the DPD model (rather than solely relying on generic bead types) to
capture specific local geometrical constructs such as the benzene
ring found in the benzyl chemical group; this can be thought of as
representing subtle real-world many-body effects via customized pairwise
non-bonded potentials.
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Affiliation(s)
- David J Bray
- The Hartree Centre, STFC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - Richard L Anderson
- The Hartree Centre, STFC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - Patrick B Warren
- The Hartree Centre, STFC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - Kenneth Lewtas
- Lewtas Science & Technologies Ltd., 246 Banbury Road, Oxford OX2 7DY, United Kingdom.,School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
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11
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Li B, Gong S, Cao P, Gao W, Zheng W, Sun W, Zhang X, Wu X. Screening of Biocompatible MOFs for the Clearance of Indoxyl Sulfate Using GCMC Simulations. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bihong Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shaomin Gong
- Department of Nephrology, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - Piao Cao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weiqun Gao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weizhong Zheng
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Weizhen Sun
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaoyan Zhang
- Department of Nephrology, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - Xiaojun Wu
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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12
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Predicting the Solubility of Nonelectrolyte Solids Using a Combination of Molecular Simulation with the Solubility Parameter Method MOSCED: Application to the Wastewater Contaminants Monuron, Diuron, Atrazine and Atenolol. Processes (Basel) 2022. [DOI: 10.3390/pr10030538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Methods to predict the equilibrium solubility of nonelectrolyte solids are indispensable for early-stage process development, design, and feasibility studies. Conventional analytic methods typically require reference data to regress parameters, which may not be available or limited for novel systems. Molecular simulation is a promising alternative, but is computationally intensive. Here, we demonstrate the ability to use a small number of molecular simulation free energy calculations to generate reference data to regress model parameters for the analytical MOSCED (modified separation of cohesive energy density) model. The result is an efficient analytical method to predict the equilibrium solubility of nonelectrolyte solids. The method is demonstrated for the wastewater contaminants monuron, diuron, atrazine and atenolol. Predictions for monuron, diuron and atrazine are in reasonable agreement with MOSCED parameters regressed using experimental solubility data. Predictions for atenolol are inferior, suggesting a potential limitation in the adopted molecular models, or the solvents selected to generate the necessary reference data.
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13
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Gutiérrez-Sevillano JJ, Martin-Calvo A, Dubbeldam D, Calero S. Modifying the hydrophobic nature of MAF-6. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119422] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Da Silva HC, Paluch AS, Costa LT, De Almeida WB. Thermodynamic and structural description of relative solubility of the flavonoid rutin by DFT calculations and molecular dynamics simulations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Affiliation(s)
- Suryadip Bhattacharjee
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Jhumpa Adhikari
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
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16
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Alonso G, Gamallo P, Rincón C, Sayós R. Interfacial behavior of binary, ternary and quaternary oil/water mixtures described from molecular dynamics simulations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Velarde-Salcedo MV, Sánchez-Badillo J, Gallo M, López-Lemus J. Excess chemical potential of thiophene in [C 4MIM] [BF 4, Cl, Br, CH 3COO] ionic liquids, determined by molecular simulations. RSC Adv 2021; 11:29394-29406. [PMID: 35479577 PMCID: PMC9040597 DOI: 10.1039/d1ra04615b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/25/2021] [Indexed: 11/21/2022] Open
Abstract
The excess chemical potential of thiophene in imidazolium-based ionic liquids [C4mim][BF4], [C4mim][Cl], [C4mim][Br], and [C4mim][CH3COO] were determined by means of molecular dynamics in conjunction with free energy perturbation techniques employing non-polarizable force fields at 300 K and 343.15 K. In addition, energetic and structural analysis were performed such as: interaction energies, averaged noncovalent interactions, radial, and combined distribution functions. The results from this work revealed that the ionic liquids (ILs) presenting the most favorable excess chemical potentials ([C4mim][BF4], [C4mim][CH3COO]) are associated with the strongest energetic interaction between the thiophene molecule and the ionic liquid anion, and with the weakest energetic interaction between the thiophene molecule and the ionic liquid cation. Excess chemical potential of thiophene in imidazolium-based ionic liquids [C4mim][BF4], [C4mim][Cl], [C4mim][Br], and [C4mim][CH3COO] determined by molecular simulations.![]()
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Affiliation(s)
- Marco V. Velarde-Salcedo
- Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Col. Centro, Toluca, Estado de México, C.P. 50000, Mexico
| | - Joel Sánchez-Badillo
- Facultad de Ingeniería en Tecnología de la Madera, Universidad Michoacana de San Nicolás de Hidalgo, Fco. J. Múgica S/N, Morelia, Michoacán, C. P. 58030, Mexico
| | - Marco Gallo
- Tecnológico Nacional de México/ITCJ, Av. Tecnológico 1340, Cd. Juárez, Chihuahua, C.P. 32500, Mexico
| | - Jorge López-Lemus
- Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Col. Centro, Toluca, Estado de México, C.P. 50000, Mexico
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18
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Cardona J, Jorge M, Lue L. Simple corrections for the static dielectric constant of liquid mixtures from model force fields. Phys Chem Chem Phys 2020; 22:21741-21749. [PMID: 32959821 DOI: 10.1039/d0cp04034g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pair-wise additive force fields provide fairly accurate predictions, through classical molecular simulations, for a wide range of structural, thermodynamic, and dynamical properties of many materials. However, one key property that has not been well captured is the static dielectric constant, which characterizes the response of a system to an applied electric field and is important in determining the screening of electrostatic interactions through a system. A simple correction has been found to provide a relatively robust method to improve the estimate of the static dielectric constant from molecular simulations for a broad range of compounds. This approach accounts for the electronic contribution to molecular polarizability and assumes that the charges that couple a molecule to an applied electric field are proportional to the effective force field charges. In this work, we examine how this correction performs for systems at different temperatures and for binary mixtures. Using a value for the electronic polarizability, based on the experimental index of refraction, and a charge scaling factor, determined at a single temperature, we find that the static dielectric constant can be predicted remarkably well, in comparison to the experimentally measured values. This provides good evidence that the effective charges that appear in pair-wise additive force fields developed to reproduce the potential energy surface of a system are not the same as those that determine the static dielectric constant; however, they can be captured in a relatively simple manner, which is dependent on the particular force field.
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Affiliation(s)
- Javier Cardona
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, UK. and Department of Electronic and Electrical Engineering, University of Strathclyde, Royal College Building, 204 George Street, Glasgow G1 1XW, UK
| | - Miguel Jorge
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, UK.
| | - Leo Lue
- Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, UK.
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Yakubovich AV, Son WJ, Kwon O, Choi H, Choi B, Kim S. Accurate Vapor Pressure Prediction for Large Organic Molecules: Application to Materials Utilized in Organic Light-Emitting Diodes. J Chem Theory Comput 2020; 16:5845-5851. [DOI: 10.1021/acs.jctc.9b01245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander V. Yakubovich
- Samsung R&D Institute Russia (SRR), Samsung Electronics, 12 Dvintsev Street, Moscow 127018, Russia
| | - Won-Joon Son
- Data and Information Technology Center, Samsung Electronics, Hwaseong 18448, Korea
| | - Ohyun Kwon
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, 130 Samsung-ro, Yeongtong-gu, Suwon 16678, Korea
| | - Hyeonho Choi
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, 130 Samsung-ro, Yeongtong-gu, Suwon 16678, Korea
| | - Byoungki Choi
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, 130 Samsung-ro, Yeongtong-gu, Suwon 16678, Korea
| | - Sunghan Kim
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, 130 Samsung-ro, Yeongtong-gu, Suwon 16678, Korea
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20
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Xu Y, Zhong Z, Lu S, Zeng Y. Monte Carlo Simulations of Adsorption of Thiophene/Benzene in NaX and NaY Zeolites from Model Fuel. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yueyang Xu
- School of Energy and Environment, Southeast University, Nanjing 210096, China
- Guodian Science and Technology Research Institute Co. Ltd., Nanjing 210023, China
| | - Zhaoping Zhong
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Shengjie Lu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yongping Zeng
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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21
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Požar M, Jukić I, Lovrinčević B. Thermodynamic, structural and dynamic properties of selected non-associative neat liquids. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:405101. [PMID: 32412441 DOI: 10.1088/1361-648x/ab935d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
Non-associative neat liquids benzene, acetone and carbon tetrachloride have been examined via molecular dynamics simulations. Several models of each neat liquid have been simulated, and selected thermodynamic and structural results are presented. However, the models have been compared mainly in terms of their dynamic quantities. Since models are rarely parametrized with the dynamic properties in mind, the principal goal of this work is to present quantities such as the power spectra, rotational correlation functions and relaxation times, diffusion coefficients and self and distinct parts of the van Hove functions in relation to available experimental data. The general trends of the calculated data provide a benchmark for the behavior of neat simple liquids which will be built upon in the cases of mixtures with associative liquids.
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Affiliation(s)
- Martina Požar
- University of Split, Faculty of Science, Rud-era Boškovića 33, 21000 Split, Croatia
| | - Ivo Jukić
- University of Split, Faculty of Science, Rud-era Boškovića 33, 21000 Split, Croatia
| | - Bernarda Lovrinčević
- University of Split, Faculty of Science, Rud-era Boškovića 33, 21000 Split, Croatia
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22
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Li D, Gao Z, Vasudevan NK, Li H, Gao X, Li X, Xi L. Molecular Mechanism for Azeotrope Formation in Ethanol/Benzene Binary Mixtures through Gibbs Ensemble Monte Carlo Simulation. J Phys Chem B 2020; 124:3371-3386. [PMID: 32250637 DOI: 10.1021/acs.jpcb.9b12013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Azeotropes have been studied for decades due to the challenges they impose on separation processes but fundamental understanding at the molecular level remains limited. Although molecular simulation has demonstrated its capability of predicting mixture vapor-liquid equilibrium (VLE) behaviors, including azeotropes, its potential for mechanistic investigation has not been fully exploited. In this study, we use the united atom transferable potentials for phase equilibria (TraPPE-UA) force field to model the ethanol/benzene mixture, which displays a positive azeotrope. Gibbs ensemble Monte Carlo (GEMC) simulation is performed to predict the VLE phase diagram, including an azeotrope point. The results accurately agree with experimental measurements. We argue that the molecular mechanism of azeotrope formation cannot be fully understood by studying the mixture liquid-state stability at the azeotrope point alone. Rather, azeotrope occurrence is only a reflection of the changing relative volatility between the two components over a much wider composition range. A thermodynamic criterion is thus proposed on the basis of the comparison of partial excess Gibbs energy between the components. In the ethanol/benzene system, molecular energetics shows that with increasing ethanol mole fraction, its volatility initially decreases but later plateaus, while benzene volatility is initially nearly constant and only starts to decrease when its mole fraction is low. Analysis of the mixture liquid structure, including a detailed investigation of ethanol hydrogen-bonding configurations at different composition levels, reveals the underlying molecular mechanism for the changing volatilities responsible for the azeotrope.
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Affiliation(s)
- Dongyang Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China.,Department of Chemical Engineering, McMaster Universtiy, Hamilton, Ontario L8S 4L7, Canada
| | - Ziqi Gao
- Department of Chemical Engineering, McMaster Universtiy, Hamilton, Ontario L8S 4L7, Canada
| | - Naveen Kumar Vasudevan
- Department of Chemical Engineering, McMaster Universtiy, Hamilton, Ontario L8S 4L7, Canada
| | - Hong Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Xin Gao
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Xingang Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Li Xi
- Department of Chemical Engineering, McMaster Universtiy, Hamilton, Ontario L8S 4L7, Canada
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23
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Goel H, Windom ZW, Jackson AA, Rai N. CO2 sorption in triethyl(butyl)phosphonium 2-cyanopyrrolide ionic liquid via first principles simulations. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Dubbeldam D, Walton KS, Vlugt TJH, Calero S. Design, Parameterization, and Implementation of Atomic Force Fields for Adsorption in Nanoporous Materials. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900135] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- David Dubbeldam
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 904 1098XH Amsterdam The Netherlands
| | - Krista S. Walton
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology311 Ferst Dr. NW Atlanta GA 30332‐0100 USA
| | - Thijs J. H. Vlugt
- Delft University of TechnologyProcess & Energy DepartmentLeeghwaterstraat 39 2628CB Delft The Netherlands
| | - Sofia Calero
- Department of PhysicalChemical and Natural SystemsUniversity Pablo de OlavideSevilla 41013 Spain
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25
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Martin‐Calvo A, Gutierrez‐Sevillano JJ, Dubbeldam D, Calero S. Using Aliphatic Alcohols to Tune Benzene Adsorption in MAF‐6. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ana Martin‐Calvo
- Department of PhysicalChemical and Natural SystemsUniversity Pablo de Olavide Sevilla 41013 Spain
| | | | - David Dubbeldam
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Amsterdam 1090 GD The Netherlands
| | - Sofia Calero
- Department of PhysicalChemical and Natural SystemsUniversity Pablo de Olavide Sevilla 41013 Spain
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26
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Lenzen D, Zhao J, Ernst SJ, Wahiduzzaman M, Ken Inge A, Fröhlich D, Xu H, Bart HJ, Janiak C, Henninger S, Maurin G, Zou X, Stock N. A metal-organic framework for efficient water-based ultra-low-temperature-driven cooling. Nat Commun 2019; 10:3025. [PMID: 31289274 PMCID: PMC6616384 DOI: 10.1038/s41467-019-10960-0] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/07/2019] [Indexed: 11/09/2022] Open
Abstract
Efficient use of energy for cooling applications is a very important and challenging field in science. Ultra-low temperature actuated (Tdriving < 80 °C) adsorption-driven chillers (ADCs) with water as the cooling agent are one environmentally benign option. The nanoscale metal-organic framework [Al(OH)(C6H2O4S)] denoted CAU-23 was discovered that possess favorable properties, including water adsorption capacity of 0.37 gH2O/gsorbent around p/p0 = 0.3 and cycling stability of at least 5000 cycles. Most importantly the material has a driving temperature down to 60 °C, which allows for the exploitation of yet mostly unused temperature sources and a more efficient use of energy. These exceptional properties are due to its unique crystal structure, which was unequivocally elucidated by single crystal electron diffraction. Monte Carlo simulations were performed to reveal the water adsorption mechanism at the atomic level. With its green synthesis, CAU-23 is an ideal material to realize ultra-low temperature driven ADC devices.
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Affiliation(s)
- Dirk Lenzen
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth-Str. 2, 24118, Kiel, Germany
| | - Jingjing Zhao
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Sebastian-Johannes Ernst
- Department Heating and Cooling Technologies, Group Sorption Materials, Fraunhofer-Institut für Solare Energiesysteme ISE, Heidenhofstrasse 2, 79110, Freiburg, Germany
- TU Kaiserslautern, Chair of Separation Science and Technology, P.O. Box 3049, 67653, Kaiserslautern, Germany
| | - Mohammad Wahiduzzaman
- Institut Charles Gerhardt Montpellier, Université Montpellier, UMR 5253 CNRS ENSCM UM, 34095 Montpellier, France
| | - A Ken Inge
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Dominik Fröhlich
- Department Heating and Cooling Technologies, Group Sorption Materials, Fraunhofer-Institut für Solare Energiesysteme ISE, Heidenhofstrasse 2, 79110, Freiburg, Germany
| | - Hongyi Xu
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Hans-Jörg Bart
- TU Kaiserslautern, Chair of Separation Science and Technology, P.O. Box 3049, 67653, Kaiserslautern, Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie I, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Stefan Henninger
- Department Heating and Cooling Technologies, Group Sorption Materials, Fraunhofer-Institut für Solare Energiesysteme ISE, Heidenhofstrasse 2, 79110, Freiburg, Germany.
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier, Université Montpellier, UMR 5253 CNRS ENSCM UM, 34095 Montpellier, France.
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91, Stockholm, Sweden.
| | - Norbert Stock
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth-Str. 2, 24118, Kiel, Germany.
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27
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Barclay PL, Lukes JR. Curvature Dependence of the Mass Accommodation Coefficient. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6196-6202. [PMID: 30977660 DOI: 10.1021/acs.langmuir.9b00537] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mass accommodation coefficient, a parameter that captures molecular transport phenomena at liquid-vapor interfaces, is essential for predicting the growth of liquid droplets during condensation processes but is difficult to obtain experimentally. Molecular simulations have been widely used to obtain accommodation coefficients for planar interfaces, but the applicability of planar accommodation coefficients to the high-curvature interfaces present in very small droplets is not clear. In this work, molecular dynamics simulations are used to compute equilibrium mass accommodation coefficients at different temperatures for small droplets of various fluids, including Lennard-Jones and Buckingham fluids, benzene, butane, methane, methanol, and water. For all fluids studied, the mass accommodation coefficient increases with droplet size to a constant limiting value and decreases with temperature. Furthermore, the accommodation coefficient curvature dependence collapses onto a universal curve when appropriately scaled.
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Affiliation(s)
- Paul L Barclay
- Department of Mechanical Engineering and Applied Mechanics , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Jennifer R Lukes
- Department of Mechanical Engineering and Applied Mechanics , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
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28
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29
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Baz J, Gebhardt J, Kraus H, Markthaler D, Hansen N. Insights into Noncovalent Binding Obtained from Molecular Dynamics Simulations. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201800050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jörg Baz
- University of Stuttgart; Institute of Thermodynamics and Thermal Process Engineering; Pfaffenwaldring 9 70569 Stuttgart Germany
| | - Julia Gebhardt
- University of Stuttgart; Institute of Thermodynamics and Thermal Process Engineering; Pfaffenwaldring 9 70569 Stuttgart Germany
| | - Hamzeh Kraus
- University of Stuttgart; Institute of Thermodynamics and Thermal Process Engineering; Pfaffenwaldring 9 70569 Stuttgart Germany
| | - Daniel Markthaler
- University of Stuttgart; Institute of Thermodynamics and Thermal Process Engineering; Pfaffenwaldring 9 70569 Stuttgart Germany
| | - Niels Hansen
- University of Stuttgart; Institute of Thermodynamics and Thermal Process Engineering; Pfaffenwaldring 9 70569 Stuttgart Germany
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30
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Chakraborti T, Adhikari J. Vapor–Liquid Equilibria of Mixtures of Molecular Fluids Using the Activity Fraction Expanded Ensemble Simulation Method. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tamaghna Chakraborti
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai−400076, India
| | - Jhumpa Adhikari
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai−400076, India
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31
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Khattak HK, Svishchev IM. Analysis of 3D hydration structures using differential spatial distributions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Goel H, Ling S, Ellis BN, Taconi A, Slater B, Rai N. Predicting vapor liquid equilibria using density functional theory: A case study of argon. J Chem Phys 2018; 148:224501. [PMID: 29907054 DOI: 10.1063/1.5025726] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Predicting vapor liquid equilibria (VLE) of molecules governed by weak van der Waals (vdW) interactions using the first principles approach is a significant challenge. Due to the poor scaling of the post Hartree-Fock wave function theory with system size/basis functions, the Kohn-Sham density functional theory (DFT) is preferred for systems with a large number of molecules. However, traditional DFT cannot adequately account for medium to long range correlations which are necessary for modeling vdW interactions. Recent developments in DFT such as dispersion corrected models and nonlocal van der Waals functionals have attempted to address this weakness with a varying degree of success. In this work, we predict the VLE of argon and assess the performance of several density functionals and the second order Møller-Plesset perturbation theory (MP2) by determining critical and structural properties via first principles Monte Carlo simulations. PBE-D3, BLYP-D3, and rVV10 functionals were used to compute vapor liquid coexistence curves, while PBE0-D3, M06-2X-D3, and MP2 were used for computing liquid density at a single state point. The performance of the PBE-D3 functional for VLE is superior to other functionals (BLYP-D3 and rVV10). At T = 85 K and P = 1 bar, MP2 performs well for the density and structural features of the first solvation shell in the liquid phase.
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Affiliation(s)
- Himanshu Goel
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Sanliang Ling
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Breanna Nicole Ellis
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Anna Taconi
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Ben Slater
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA
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33
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Mulunda MM, Zhang Z, Nies E, van Goethem C, Vankelecom IFJ, Koeckelberghs G. Influence of Branching of Polythiophenes on the Microporosity. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mikael Monga Mulunda
- Laboratory for Polymer Synthesis; Division of Polymer Chemistry and Materials; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
- Centre for Surface Chemistry and Catalysis; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
| | - Zidan Zhang
- Laboratory for Physical Chemistry of Polymer Materials; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
| | - Eric Nies
- Laboratory for Physical Chemistry of Polymer Materials; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
| | - Cédric van Goethem
- Centre for Surface Chemistry and Catalysis; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
| | - Ivo F. J. Vankelecom
- Centre for Surface Chemistry and Catalysis; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
| | - Guy Koeckelberghs
- Laboratory for Polymer Synthesis; Division of Polymer Chemistry and Materials; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
- Centre for Surface Chemistry and Catalysis; KU Leuven; Celestijnenlaan 200F 3001 Heverlee (Leuven) Belgium
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34
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Goel H, Rai N. Transferable Potentials for Chloroethenes: Insights into Nonideal Solution Behavior of Environmental Contaminants. ACS OMEGA 2018; 3:3646-3654. [PMID: 31458615 PMCID: PMC6641527 DOI: 10.1021/acsomega.8b00044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/19/2018] [Indexed: 06/10/2023]
Abstract
Predicting the nonideal phase behavior of binary and multicomponent systems remains a significant challenge for particle-based simulations. Here, we develop a transferable force field for chloroethenes, common environmental contaminants, that can accurately model the vapor liquid phase equilibria including azeotrope formation. The new all-atom force field reproduces saturated liquid densities, saturated vapor pressures, boiling points, and critical properties within 1, 10, 1, and 1% of the experiment data, respectively. Furthermore, the vapor liquid equilibria of trichloroethylene and 1-propanol binary mixture, which forms a minimum boiling point azeotrope, is predicted with a reasonable accuracy. The microstructure of neat and binary systems is explored using pair correlation functions and spatial distribution functions. As the new force field is consistent with transferable potentials for phase equilibria (TraPPE) force field, it expands the applicability of TraPPE force field to chloroethenes.
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Affiliation(s)
| | - Neeraj Rai
- E-mail: . Phone: +1
(662) 3250790. Fax: +1 (662) 3252482 (N.R.)
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35
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Rukmani SJ, Liyana-Arachchi TP, Hart KE, Colina CM. Ionic-Functionalized Polymers of Intrinsic Microporosity for Gas Separation Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3949-3960. [PMID: 29553745 DOI: 10.1021/acs.langmuir.7b04320] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ionic-functionalized microporous materials are attractive for energy-efficient gas adsorption and separation processes and have shown promising results in gas mixtures at pressure ranges and compositions that are relevant for industrial applications. In this work, we studied the influence of different counterions (Li+, Na+, K+, Rb+, and Mg2+) on the porosity, carbon dioxide (CO2) gas adsorption, and selectivity in ionic-functionalized PIM-1 (IonomIMs), a polymer belonging to the class of linear and amorphous microporous polymers known as polymers of intrinsic microporosity (PIMs). It was found that an increase in the concentration of ionic groups led to a decrease in the free volume, resulting in a less porous polymer framework, and Mg2+-functionalized IonomIMs exhibited a relatively larger porosity compared to other IonomIMs. The CO2 adsorption capacity was affected by the different counterions for IonomIM-1, and a higher loading capacity for pure CO2 was observed for Mg2+. Furthermore, the IonomIMs showed an enhanced CO2 selectivity in CO2/CH4 and CO2/N2 gas mixtures at conditions used in pressure swing adsorption and vacuum swing adsorption applications. It was also observed that the concentration of ionic groups plays a vital role in changing the CO2 gas adsorption and selectivity.
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Affiliation(s)
| | | | - Kyle E Hart
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
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36
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Goel H, Windom ZW, Jackson AA, Rai N. Performance of density functionals for modeling vapor liquid equilibria of CO 2 and SO 2. J Comput Chem 2018; 39:397-406. [PMID: 29164642 DOI: 10.1002/jcc.25123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/12/2017] [Accepted: 11/07/2017] [Indexed: 01/16/2023]
Abstract
Vapor liquid equilibria (VLE) and condensed phase properties of carbon dioxide and sulfur dioxide are calculated using first principles Monte Carlo (FPMC) simulations to assess the performance of several density functionals, notably PBE-D3, BLYP-D3, PBE0-D3, M062X-D3, and rVV10. GGA functionals were used to compute complete vapor liquid coexistence curves (VLCCs) to estimate critical properties, while the hybrid and nonlocal van der Waals functionals were used only for computing density at a single state point due to the high computational cost. Our results show that the BLYP-D3 functional performs well in predicting VLE properties for both molecules when compared with other functionals. In the liquid phase, pair correlation functions reveal that there is not a significant difference in the location of the peak for the first solvation shell while the peak heights are different for different functionals. Overall, the BLYP-D3 functional is a good choice for modeling VLE of acidic gases with significant environmental implications such as CO2 and SO2 . © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Himanshu Goel
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, MS, 39762
| | - Zachary W Windom
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, MS, 39762
| | - Amber A Jackson
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, MS, 39762
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering, and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, MS, 39762
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37
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Martín EI, Sánchez-Coronilla A, Navas J, Gómez-Villarejo R, Gallardo JJ, Alcántara R, Fernández-Lorenzo C. Unraveling the role of the base fluid arrangement in metal-nanofluids used to enhance heat transfer in concentrating solar power plants. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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39
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Martín EI, Sánchez-Coronilla A, Navas J, Gómez-Villarejo R, Martínez-Merino P, Alcántara R, Fernández-Lorenzo C. Revealing at the molecular level the role of the surfactant in the enhancement of the thermal properties of the gold nanofluid system used for concentrating solar power. Phys Chem Chem Phys 2018; 20:2421-2430. [DOI: 10.1039/c7cp05384c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A surfactant acts as a kind of net around gold that enhances at the molecular level the gold nanofluid thermal properties.
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Affiliation(s)
- Elisa I. Martín
- Departamento de Ingeniería Química
- Facultad de Química
- Universidad de Sevilla
- E-41012 Sevilla
- Spain
| | | | - Javier Navas
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Cádiz
- E-11510 Puerto Real (Cádiz)
- Spain
| | - Roberto Gómez-Villarejo
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Cádiz
- E-11510 Puerto Real (Cádiz)
- Spain
| | - Paloma Martínez-Merino
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Cádiz
- E-11510 Puerto Real (Cádiz)
- Spain
| | - Rodrigo Alcántara
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Cádiz
- E-11510 Puerto Real (Cádiz)
- Spain
| | - Concha Fernández-Lorenzo
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Cádiz
- E-11510 Puerto Real (Cádiz)
- Spain
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40
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Goel H, Windom ZW, Butler CL, Rai N. Phase Equilibria and Condensed Phase Properties of Fluorinated Alkanes via First Principles Simulations. ChemistrySelect 2017. [DOI: 10.1002/slct.201701972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Himanshu Goel
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems Mississippi State University, MS
| | - Zachary W. Windom
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems Mississippi State University, MS
| | - Charles L. Butler
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems Mississippi State University, MS
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems Mississippi State University, MS
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41
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Müller EA, Mejía A. Extension of the SAFT-VR Mie EoS To Model Homonuclear Rings and Its Parametrization Based on the Principle of Corresponding States. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:11518-11529. [PMID: 28602088 DOI: 10.1021/acs.langmuir.7b00976] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The statistical associating fluid theory of variable range employing a Mie potential (SAFT-VR-Mie) proposed by Lafitte et al. (J. Chem Phys. 2013, 139, 154504) is one of the latest versions of the SAFT family. This particular version has been shown to have a remarkable capability to connect experimental determinations, theoretical calculations, and molecular simulations results. However, the theoretical development restricts the model to chains of beads connected in a linear fashion. In this work, the capabilities of the SAFT-VR Mie equation of state for modeling phase equilibria are extended for the case of planar ring compounds. This modification proposed replaces the Helmholtz energy of chain formation by an empirical contribution based on a parallelism to the second-order thermodynamic perturbation theory for hard sphere trimers. The proposed expression is given in terms of an extra parameter, χ, that depends on the number of beads, ms, and the geometry of the ring. The model is used to describe the phase equilibrium for planar ring compounds formed of Mie isotropic segments for the cases of ms equals to 3, 4, 5 (two configurations), and 7 (two configurations). The resulting molecular model is further parametrized, invoking a corresponding states principle resulting in sets of parameters that can be used indistinctively in theoretical calculations or in molecular simulations without any further refinements. The extent and performance of the methodology has been exemplified by predicting the phase equilibria and vapor pressure curves for aromatic hydrocarbons (benzene, hexafluorobenzene, toluene), heterocyclic molecules (2,5-dimethylfuran, sulfolane, tetrahydro-2H-pyran, tetrahydrofuran), and polycyclic aromatic hydrocarbons (naphthalene, pyrene, anthracene, pentacene, and coronene). An important aspect of the theory is that the parameters of the model can be used directly in molecular dynamics (MD) simulations to calculate equilibrium phase properties and interfacial tensions with an accuracy that rivals other coarse grained and united atom models, for example, liquid densities, are predicted, with a maximum absolute average deviation of 3% from both the theory and the MD simulations, while the interfacial tension is predicted, with a maximum absolute average of 8%. The extension to mixtures is exemplified by considering a binary system of hexane (chain fluid) and tetrahydro-2H-pyran (ring fluid).
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Affiliation(s)
- Erich A Müller
- Department of Chemical Engineering, Imperial College London , South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrés Mejía
- Departamento de Ingeniería Química, Universidad de Concepción POB 160 - C, Correo 3, Concepción, Chile
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42
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Computational study of ibuprofen removal from water by adsorption in realistic activated carbons. J Colloid Interface Sci 2017; 498:323-334. [DOI: 10.1016/j.jcis.2017.03.068] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/11/2017] [Accepted: 03/15/2017] [Indexed: 11/22/2022]
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43
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MONDAL ANIRBAN, BALASUBRAMANIAN SUNDARAM. Molecular Dynamics Investigation of Efficient SO2 Absorption by Anion-Functionalized Ionic Liquids. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1236-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Hashemnejad S, Huda MM, Rai N, Kundu S. Molecular Insights into Gelation of Di-Fmoc-l-Lysine in Organic Solvent-Water Mixtures. ACS OMEGA 2017; 2:1864-1874. [PMID: 31457548 PMCID: PMC6640949 DOI: 10.1021/acsomega.7b00108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/25/2017] [Indexed: 05/21/2023]
Abstract
Despite significant interest in molecular gels due to their intriguing structure formation through self-assembly and their stimuli-responsive behavior, our understanding of the gel formation mechanism of a low-molecular-weight gelator (LMWG) is incomplete. Here, we report a combined experimental and computational study on a LMWG, di-Fmoc-l-lysine, that has two aromatic moieties and multiple hydrogen bond donors and acceptors. Gelation in various organic solvent-water mixtures was obtained through the solvent-triggered technique. We show that an approach based on approximate cohesive energy density derived from density functional theory (DFT) calculations can capture the experimental solubility trend of LMWGs in different organic solvents. Furthermore, DFT calculations indicate parallel and helical structures to be the preferred structural motifs for gelator dimers. We believe that these motifs can potentially lead to fiber formation as observed with microscopy. Our work provides a relatively simple yet effective approach to quantify interactions between solvents and complex gelators that can help rationalize solubility and gelation behavior.
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Affiliation(s)
- Seyed
Meysam Hashemnejad
- Dave
C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Md Masrul Huda
- Dave
C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Neeraj Rai
- Dave
C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Santanu Kundu
- Dave
C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
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45
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Chakraborti T, Adhikari J. Phase Equilibria and Critical Point Predictions of Mixtures of Molecular Fluids Using Grand Canonical Transition Matrix Monte Carlo. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tamaghna Chakraborti
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400476, India
| | - Jhumpa Adhikari
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400476, India
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46
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Moghadam PZ, Ivy JF, Arvapally RK, Dos Santos AM, Pearson JC, Zhang L, Tylianakis E, Ghosh P, Oswald IWH, Kaipa U, Wang X, Wilson AK, Snurr RQ, Omary MA. Adsorption and molecular siting of CO 2, water, and other gases in the superhydrophobic, flexible pores of FMOF-1 from experiment and simulation. Chem Sci 2017; 8:3989-4000. [PMID: 28553541 PMCID: PMC5433493 DOI: 10.1039/c7sc00278e] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/09/2017] [Indexed: 11/26/2022] Open
Abstract
CO2 isotherms for FMOF-1 reveal 11.0 mol L–1 max uptake and suggest framework expansion, substantiated by in situ neutron diffraction and GCMC simulations.
FMOF-1 is a flexible, superhydrophobic metal–organic framework with a network of channels and side pockets decorated with –CF3 groups. CO2 adsorption isotherms measured between 278 and 313 K and up to 55 bar reveal a maximum uptake of ca. 6.16 mol kg–1 (11.0 mol L–1) and unusual isotherm shapes at the higher temperatures, suggesting framework expansion. We used neutron diffraction and molecular simulations to investigate the framework expansion behaviour and the accessibility of the small pockets to N2, O2, and CO2. Neutron diffraction in situ experiments on the crystalline powder show that CO2 molecules are favourably adsorbed at three distinct adsorption sites in the large channels of FMOF-1 and cannot access the small pockets in FMOF-1 at 290 K and oversaturated pressure at 61 bar. Stepped adsorption isotherms for N2 and O2 at 77 K can be explained by combining Monte Carlo simulations in several different crystal structures of FMOF-1 obtained from neutron and X-ray diffraction under different conditions. A similar analysis is successful for CO2 adsorption at 278 and 283 K up to ca. 30 bar; however, at 298 K and pressures above 30 bar, the results suggest even more substantial expansion of the FMOF-1 framework. The measured contact angle for water on an FMOF-1 pellet is 158°, demonstrating superhydrophobicity. Simulations and adsorption measurements also show that FMOF-1 is hydrophobic and water is not adsorbed in FMOF-1 at room temperature. Simulated mixture isotherms of CO2 in the presence of 80% relative humidity predict that water does not influence the CO2 adsorption in FMOF-1, suggesting that hydrophobic MOFs could hold promise for CO2 capture from humid gas streams.
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Affiliation(s)
- Peyman Z Moghadam
- Department of Chemical & Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208-3120 , USA .
| | - Joshua F Ivy
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ;
| | - Ravi K Arvapally
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ;
| | - Antonio M Dos Santos
- Neutron Sciences Directorate , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USA .
| | - John C Pearson
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ; .,Department of Chemistry , Michigan State University , East Lansing , MI 48824-1322 , USA
| | - Li Zhang
- Department of Chemical & Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208-3120 , USA . .,Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , China
| | - Emmanouil Tylianakis
- Department of Materials Science & Technology , University of Crete , Voutes Campus , Heraklion , Crete GR-71003 , Greece
| | - Pritha Ghosh
- Department of Chemical & Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208-3120 , USA .
| | - Iain W H Oswald
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ;
| | - Ushasree Kaipa
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ;
| | - Xiaoping Wang
- Neutron Sciences Directorate , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USA .
| | - Angela K Wilson
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ; .,Department of Chemistry , Michigan State University , East Lansing , MI 48824-1322 , USA
| | - Randall Q Snurr
- Department of Chemical & Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , IL 60208-3120 , USA .
| | - Mohammad A Omary
- Department of Chemistry , University of North Texas , Denton , Texas 76203 , USA . ;
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47
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Zhang Q, Chen W, Zeng A. Monte Carlo predictions for vapor-liquid equilibria of N-Methyl-2-pyrrolidone + benzene + thiophene. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Noroozi J, Paluch AS. Microscopic Structure and Solubility Predictions of Multifunctional Solids in Supercritical Carbon Dioxide: A Molecular Simulation Study. J Phys Chem B 2017; 121:1660-1674. [DOI: 10.1021/acs.jpcb.6b12390] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Javad Noroozi
- Department
of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Andrew S. Paluch
- Department
of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
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49
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Abstract
Metal ions play significant roles in numerous fields including chemistry, geochemistry, biochemistry, and materials science. With computational tools increasingly becoming important in chemical research, methods have emerged to effectively face the challenge of modeling metal ions in the gas, aqueous, and solid phases. Herein, we review both quantum and classical modeling strategies for metal ion-containing systems that have been developed over the past few decades. This Review focuses on classical metal ion modeling based on unpolarized models (including the nonbonded, bonded, cationic dummy atom, and combined models), polarizable models (e.g., the fluctuating charge, Drude oscillator, and the induced dipole models), the angular overlap model, and valence bond-based models. Quantum mechanical studies of metal ion-containing systems at the semiempirical, ab initio, and density functional levels of theory are reviewed as well with a particular focus on how these methods inform classical modeling efforts. Finally, conclusions and future prospects and directions are offered that will further enhance the classical modeling of metal ion-containing systems.
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Affiliation(s)
| | - Kenneth M. Merz
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute of Cyber-Enabled Research, Michigan State University, East Lansing, Michigan 48824, United States
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50
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Phifer JR, Cox CE, da Silva LF, Nogueira GG, Barbosa AKP, Ley RT, Bozada SM, O’Loughlin EJ, Paluch AS. Predicting the equilibrium solubility of solid polycyclic aromatic hydrocarbons and dibenzothiophene using a combination of MOSCED plus molecular simulation or electronic structure calculations. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1284356] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jeremy R. Phifer
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Courtney E. Cox
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Larissa Ferreira da Silva
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
- Departamento de Engenharia Química, Universidade Federal de São João del-Rei, Ouro Branco, Brazil
| | - Gabriel Gonçalves Nogueira
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
- Departamento de Engenharia Química, Universidade Federal de São João del-Rei, Ouro Branco, Brazil
| | - Ana Karolyne Pereira Barbosa
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
- Instituto de Ciência e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
| | - Ryan T. Ley
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Samantha M. Bozada
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | | | - Andrew S. Paluch
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
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