1
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Liang T, Liu W, Tan K, Wu A, Lu X. Advancing Ionic Liquid Research with pSCNN: A Novel Approach for Accurate Normal Melting Temperature Predictions. ACS OMEGA 2024; 9:31694-31702. [PMID: 39072063 PMCID: PMC11270577 DOI: 10.1021/acsomega.4c02393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/12/2024] [Accepted: 06/25/2024] [Indexed: 07/30/2024]
Abstract
Ionic liquids (ILs), known for their distinct and tunable properties, offer a broad spectrum of potential applications across various fields, including chemistry, materials science, and energy storage. However, practical applications of ILs are often limited by their unfavorable physicochemical properties. Experimental screening becomes impractical due to the vast number of potential IL combinations. Therefore, the development of a robust and efficient model for predicting the IL properties is imperative. As the defining feature, it is of practice significance to establish an accurate yet efficient model to predict the normal melting point of IL (T m), which may facilitate the discovery and design of novel ILs for specific applications. In this study, we presented a pseudo-Siamese convolution neural network (pSCNN) inspired by SCNN and focused on the T m. Utilizing a data set of 3098 ILs, we systematically assess various deep learning models (ANN, pSCNN, and Transformer-CNF), along with molecular descriptors (ECFP fingerprint and Mordred properties), for their performance in predicting the T m of ILs. Remarkably, among the investigated modeling schemes, the pSCNN, coupled with filtered Mordred descriptors, demonstrates superior performance, yielding mean absolute error (MAE) and root-mean-square error (RMSE) values of 24.36 and 31.56 °C, respectively. Feature analysis further highlights the effectiveness of the pSCNN model. Moreover, the pSCNN method, with a pair of inputs, can be extended beyond ionic liquid melting point prediction.
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Affiliation(s)
- Tao Liang
- State Key Laboratory of Physical
Chemistry of Solid Surface, Fujian Provincial Key Laboratory for Theoretical
and Computational Chemistry, Departmental of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, P. R. China
| | - Wei Liu
- State Key Laboratory of Physical
Chemistry of Solid Surface, Fujian Provincial Key Laboratory for Theoretical
and Computational Chemistry, Departmental of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, P. R. China
| | - Kai Tan
- State Key Laboratory of Physical
Chemistry of Solid Surface, Fujian Provincial Key Laboratory for Theoretical
and Computational Chemistry, Departmental of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, P. R. China
| | - Anan Wu
- State Key Laboratory of Physical
Chemistry of Solid Surface, Fujian Provincial Key Laboratory for Theoretical
and Computational Chemistry, Departmental of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, P. R. China
| | - Xin Lu
- State Key Laboratory of Physical
Chemistry of Solid Surface, Fujian Provincial Key Laboratory for Theoretical
and Computational Chemistry, Departmental of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, P. R. China
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2
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Scheuren M, Teodoro L, Witters A, Musozoda M, Adu C, Guillet G, Freeze R, Zeller M, Mirjafari A, Hillesheim PC. Planting the Seeds of a Decision Tree for Ionic Liquids: Steric and Electronic Impacts on Melting Points of Triarylphosponium Ionic Liquids. J Phys Chem B 2024; 128:5895-5907. [PMID: 38845589 PMCID: PMC11194809 DOI: 10.1021/acs.jpcb.4c02196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024]
Abstract
While machine learning and artificial intelligence offer promising avenues in the computer-aided design of materials, the complexity of these computational techniques remains a barrier for scientists outside of the specific fields of study. Leveraging decision tree models, inspired by empirical methodologies, offers a pragmatic solution to the knowledge barrier presented by artificial intelligence (AI). Herein, we present a model allowing for the qualitative prediction of melting points of ionic liquids derived from the crystallographic analysis of a series of phosphonium-based ionic liquids. By carefully tailoring the steric and electronic properties of the cations within these salts, trends in the melting points are observed, pointing toward the critical importance of π interactions to forming the solid state. Quantification of the percentage of these π interactions using modern quantum crystallographic approaches reveals a linear trend in the relationship of C-Hπ and π-π stacking interactions with melting points. These structure-property relationships are further examined by using computational studies, helping to demonstrate the inverse relationship of dipole moments and melting points for ionic liquids. The results provide valuable insights into the features and relationships that are consistent with achieving low Tm values in phosphonium salts, which were not apparent in earlier studies. The data gathered are presented in a simple decision tree format, allowing for visualization of the data and providing guidance toward developing yet unreported compounds.
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Affiliation(s)
- Marija Scheuren
- Department
of Chemistry and Physics, Ave Maria University, Ave Maria, Florida 34142, United States
| | - Lara Teodoro
- Department
of Chemistry and Physics, Ave Maria University, Ave Maria, Florida 34142, United States
| | - Andrew Witters
- Department
of Chemistry and Physics, Ave Maria University, Ave Maria, Florida 34142, United States
| | - Muhammadiqboli Musozoda
- Department
of Chemistry, State University of New York
at Oswego, Oswego, New York 13126, United States
| | - Clinton Adu
- Department
of Chemistry, State University of New York
at Oswego, Oswego, New York 13126, United States
| | - Gary Guillet
- Department
of Chemistry, Furman University, Greenville, South Carolina 29613, United States
| | - Ronald Freeze
- Department
of Chemistry and Physics, Ave Maria University, Ave Maria, Florida 34142, United States
| | - Matthias Zeller
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Arsalan Mirjafari
- Department
of Chemistry, State University of New York
at Oswego, Oswego, New York 13126, United States
| | - Patrick C. Hillesheim
- Department
of Chemistry and Physics, Ave Maria University, Ave Maria, Florida 34142, United States
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3
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Feng H, Qin L, Zhang B, Zhou J. Prediction and Interpretability of Melting Points of Ionic Liquids Using Graph Neural Networks. ACS OMEGA 2024; 9:16016-16025. [PMID: 38617653 PMCID: PMC11007696 DOI: 10.1021/acsomega.3c09543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/16/2024]
Abstract
Ionic liquids (ILs) have wide and promising applications in fields such as chemical engineering, energy, and the environment. However, the melting points (MPs) of ILs are one of the most crucial properties affecting their applications. The MPs of ILs are affected by various factors, and tuning these in a laboratory is time-consuming and costly. Therefore, an accurate and efficient method is required to predict the desired MPs in the design of novel targeted ILs. In this study, three descriptor-based machine learning (DBML) models and eight graph neural network (GNN) models were proposed to predict the MPs of ILs. Fingerprints and molecular graphs were used to represent molecules for the DBML and GNNs, respectively. The GNN models demonstrated performance superior to that of the DBML models. Among all of the examined models, the graph convolutional model exhibited the best performance with high accuracy (root-mean-squared error = 37.06, mean absolute error = 28.79, and correlation coefficient = 0.76). Benefiting from molecular graph representation, we built a GNN-based interpretable model to reveal the atomistic contribution to the MPs of ILs using a data-driven procedure. According to our interpretable model, amino groups, S+, N+, and P+ would increase the MPs of ILs, while the negatively charged halogen atoms, S-, and N- would decrease the MPs of ILs. The results of this study provide new insight into the rapid screening and synthesis of targeted ILs with appropriate MPs.
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Affiliation(s)
- Haijun Feng
- School
of Computer Sciences, Shenzhen Institute
of Information Technology, Shenzhen, Guangdong 518172, China
| | - Lanlan Qin
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou, Guangdong 510640, China
| | - Bingxuan Zhang
- School
of Computer Sciences, Shenzhen Institute
of Information Technology, Shenzhen, Guangdong 518172, China
| | - Jian Zhou
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou, Guangdong 510640, China
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4
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Zhao Z, Li H, Gao X. Microwave Encounters Ionic Liquid: Synergistic Mechanism, Synthesis and Emerging Applications. Chem Rev 2024; 124:2651-2698. [PMID: 38157216 DOI: 10.1021/acs.chemrev.3c00794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Progress in microwave (MW) energy application technology has stimulated remarkable advances in manufacturing and high-quality applications of ionic liquids (ILs) that are generally used as novel media in chemical engineering. This Review focuses on an emerging technology via the combination of MW energy and the usage of ILs, termed microwave-assisted ionic liquid (MAIL) technology. In comparison to conventional routes that rely on heat transfer through media, the contactless and unique MW heating exploits the electromagnetic wave-ions interactions to deliver energy to IL molecules, accelerating the process of material synthesis, catalytic reactions, and so on. In addition to the inherent advantages of ILs, including outstanding solubility, and well-tuned thermophysical properties, MAIL technology has exhibited great potential in process intensification to meet the requirement of efficient, economic chemical production. Here we start with an introduction to principles of MW heating, highlighting fundamental mechanisms of MW induced process intensification based on ILs. Next, the synergies of MW energy and ILs employed in materials synthesis, as well as their merits, are documented. The emerging applications of MAIL technologies are summarized in the next sections, involving tumor therapy, organic catalysis, separations, and bioconversions. Finally, the current challenges and future opportunities of this emerging technology are discussed.
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Affiliation(s)
- Zhenyu Zhao
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Hong Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, 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, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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5
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Song Z, Chen J, Cheng J, Chen G, Qi Z. Computer-Aided Molecular Design of Ionic Liquids as Advanced Process Media: A Review from Fundamentals to Applications. Chem Rev 2024; 124:248-317. [PMID: 38108629 DOI: 10.1021/acs.chemrev.3c00223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The unique physicochemical properties, flexible structural tunability, and giant chemical space of ionic liquids (ILs) provide them a great opportunity to match different target properties to work as advanced process media. The crux of the matter is how to efficiently and reliably tailor suitable ILs toward a specific application. In this regard, the computer-aided molecular design (CAMD) approach has been widely adapted to cover this family of high-profile chemicals, that is, to perform computer-aided IL design (CAILD). This review discusses the past developments that have contributed to the state-of-the-art of CAILD and provides a perspective about how future works could pursue the acceleration of the practical application of ILs. In a broad context of CAILD, key aspects related to the forward structure-property modeling and reverse molecular design of ILs are overviewed. For the former forward task, diverse IL molecular representations, modeling algorithms, as well as representative models on physical properties, thermodynamic properties, among others of ILs are introduced. For the latter reverse task, representative works formulating different molecular design scenarios are summarized. Beyond the substantial progress made, some future perspectives to move CAILD a step forward are finally provided.
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Affiliation(s)
- Zhen Song
- State Key laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jiahui Chen
- State Key laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jie Cheng
- State Key laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Guzhong Chen
- State Key laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhiwen Qi
- State Key laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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6
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Asymmetric anion effects of anions in ionic liquids: crystal polymorphs and magnetic properties. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
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7
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Machine learning modeling for the prediction of plastic properties in metallic glasses. Sci Rep 2023; 13:348. [PMID: 36611063 PMCID: PMC9825623 DOI: 10.1038/s41598-023-27644-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023] Open
Abstract
Metallic glasses are one of the most interesting mechanical materials studied in the last years, but as amorphous solids, they differ strongly from their crystalline counterparts. This matter can be addressed with the development and application of predictive techniques capable to describe the plastic regime. Here, machine learning models were employed for the prediction of plastic properties in CuZr metallic glasses. To this aim, 100 different samples were subjected to tensile tests by means of molecular dynamics simulations. A total of 17 materials properties were calculated and explored using statistical analysis. Strong correlations were found for stoichiometry, temperature, structural, and elastic properties with plastic properties. Three regression models were employed for the prediction of six plastic properties. Linear and Ridge regressions delivered the better prediction capability, with coefficients of determination above [Formula: see text]80% for three plastic properties, whereas Lasso regression rendered lower performance, with coefficients of determination above [Formula: see text]60% for two plastic properties. Overall, our work shows that molecular dynamics simulations together with machine learning models can provide a framework for the prediction of plastic behavior of complex materials.
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8
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Fu R, Xu Y, Qiao S, Liu Y, Lin Y, Li Y, Zhang Z, Wu J. Size-dependent melting of onion-like fullerenic carbons: a molecular dynamics and machine learning study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:425402. [PMID: 35931061 DOI: 10.1088/1361-648x/ac877e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
The melting thermodynamic characteristics of 2- to 20-layered onion-like fullerenes (OLFn) (C60@C240to C60@···@C6000···@C24000) are comprehensively explored using first-principles-based ReaxFF atomistic simulations and random forest machine learning (RF ML). It is revealed that OLFnshows lower thermal stability than the counterparts of single-walled fullerenes (SWFn). The melting point of SWFnincreases monotonically with increasing size, whereas for OLFn, an unusual size-dependent melting point is observed; OLFnwith intermediate size shows the highest melting point. For small OLFn, the melting occurs from the inner to the outer, whereas for large OLFn, it nucleates from the inner to the outer and to intermediate fullerenes. The melting and erosion behaviors of both SWFnand OLFnare mainly characterized by the nucleation of non-hexagons, nanovoids, carbon chains and emission of C2. RF ML model is developed to predict the melting points of both SWFnand OLFn. Moreover, the analysis of the feature importance reveals that the Stone-Wales transformation is a critical pathway in the melting of SWFnand OLFn. This study provides new insights and perspectives into the thermodynamics and pyrolysis chemistry of fullerenic carbons, and also may shed some lights onto the understanding of thermally-induced erosion of carbon-based resources and spacecraft materials.
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Affiliation(s)
- Ran Fu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yihua Xu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Shi Qiao
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yisi Liu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yanwen Lin
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yang Li
- School of Architecture and Civil Engineering, Xi'an University of Science and Technology, No.58 Yanta Road, Xi'an 710054, People's Republic of China
| | - Zhisen Zhang
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
| | - Jianyang Wu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Jiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, People's Republic of China
- NTNU Nanomechanical Lab, Norwegian University of Science and Technology (NTNU), Trondheim 7491, Norway
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9
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Weinreich J, Lemm D, von Rudorff GF, von Lilienfeld OA. Ab initio machine learning of phase space averages. J Chem Phys 2022; 157:024303. [PMID: 35840379 DOI: 10.1063/5.0095674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Equilibrium structures determine material properties and biochemical functions. We here propose to machine learn phase space averages, conventionally obtained by ab initio or force-field-based molecular dynamics (MD) or Monte Carlo (MC) simulations. In analogy to ab initio MD, our ab initio machine learning (AIML) model does not require bond topologies and, therefore, enables a general machine learning pathway to obtain ensemble properties throughout the chemical compound space. We demonstrate AIML for predicting Boltzmann averaged structures after training on hundreds of MD trajectories. The AIML output is subsequently used to train machine learning models of free energies of solvation using experimental data and to reach competitive prediction errors (mean absolute error ∼ 0.8 kcal/mol) for out-of-sample molecules-within milliseconds. As such, AIML effectively bypasses the need for MD or MC-based phase space sampling, enabling exploration campaigns of Boltzmann averages throughout the chemical compound space at a much accelerated pace. We contextualize our findings by comparison to state-of-the-art methods resulting in a Pareto plot for the free energy of solvation predictions in terms of accuracy and time.
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Affiliation(s)
- Jan Weinreich
- Faculty of Physics, University of Vienna, Kolingasse 14-16, AT-1090 Wien, Austria
| | - Dominik Lemm
- Faculty of Physics, University of Vienna, Kolingasse 14-16, AT-1090 Wien, Austria
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10
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Mital DK, Nancarrow P, Ibrahim TH, Abdel Jabbar N, Khamis MI. Ionic Liquid Melting Points: Structure–Property Analysis and New Hybrid Group Contribution Model. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dhruve Kumar Mital
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Paul Nancarrow
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Taleb Hassan Ibrahim
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Nabil Abdel Jabbar
- Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates
| | - Mustafa I. Khamis
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, P.O.
Box 26666, Sharjah, United Arab Emirates
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11
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Zheng W, Ma Z, Sun W, Zhao L. Target High‐efficiency Ionic Liquids to Promote
H
2
SO
4
‐catalyzed
C4
Alkylation by Machine Learning. AIChE J 2022. [DOI: 10.1002/aic.17698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Weizhong Zheng
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Zhihong Ma
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Weizhen Sun
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Ling Zhao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering East China University of Science and Technology Shanghai China
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12
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Machine Learning Prediction of Critical Temperature of Organic Refrigerants by Molecular Topology. Processes (Basel) 2022. [DOI: 10.3390/pr10030577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In this work, molecular structures, combined with machine learning algorithms, were applied to predict the critical temperatures (Tc) of a group of organic refrigerants. Aiming at solving the problem that previous models cannot distinguish isomers, a topological index was introduced. The results indicate that the novel molecular descriptor ‘molecular fingerprint + topological index’ can effectively differentiate isomers. The average absolute average deviation between the predicted and experimental values is 3.99%, which proves a reasonable prediction ability of the present method. In addition, the performance of the proposed model was compared with that of other previously reported methods. The results show that the present model is superior to other approaches with respect to accuracy.
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14
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Makarov D, Fadeeva Y, Shmukler L, Tetko I. Beware of proper validation of models for ionic Liquids! J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117722] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Yan A, Sokolinski T, Lane W, Tan J, Ferris K, Ryan EM. Applying transfer learning with convolutional neural networks to identify novel electrolytes for metal air batteries. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113443] [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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16
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Chen Y, Meng X, Cai Y, Liang X, Kontogeorgis GM. Optimal Aqueous Biphasic Systems Design for the Recovery of Ionic Liquids. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuqiu Chen
- Department of Chemical and Biochemical Engineering, Technical University of Denmark DK-2800 Lyngby, Denmark
| | - Xianglei Meng
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase ComplexSystems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yingjun Cai
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase ComplexSystems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaodong Liang
- Department of Chemical and Biochemical Engineering, Technical University of Denmark DK-2800 Lyngby, Denmark
| | - Georgios M. Kontogeorgis
- Department of Chemical and Biochemical Engineering, Technical University of Denmark DK-2800 Lyngby, Denmark
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17
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18
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Shama VM, Swami AR, Aniruddha R, Sreedhar I, Reddy BM. Process and engineering aspects of carbon capture by ionic liquids. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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19
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Koutsoukos S, Philippi F, Malaret F, Welton T. A review on machine learning algorithms for the ionic liquid chemical space. Chem Sci 2021; 12:6820-6843. [PMID: 34123314 PMCID: PMC8153233 DOI: 10.1039/d1sc01000j] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/28/2021] [Indexed: 01/05/2023] Open
Abstract
There are thousands of papers published every year investigating the properties and possible applications of ionic liquids. Industrial use of these exceptional fluids requires adequate understanding of their physical properties, in order to create the ionic liquid that will optimally suit the application. Computational property prediction arose from the urgent need to minimise the time and cost that would be required to experimentally test different combinations of ions. This review discusses the use of machine learning algorithms as property prediction tools for ionic liquids (either as standalone methods or in conjunction with molecular dynamics simulations), presents common problems of training datasets and proposes ways that could lead to more accurate and efficient models.
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Affiliation(s)
- Spyridon Koutsoukos
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London White City Campus London W12 0BZ UK
| | - Frederik Philippi
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London White City Campus London W12 0BZ UK
| | - Francisco Malaret
- Department of Chemical Engineering, Imperial College London South Kensington Campus London SW7 2AZ UK
| | - Tom Welton
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London White City Campus London W12 0BZ UK
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20
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Mukherjee K, Colón YJ. Machine learning and descriptor selection for the computational discovery of metal-organic frameworks. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1916014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Krishnendu Mukherjee
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Yamil J. Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
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21
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Toropova AP, Toropov AA, Benfenati E. The self-organizing vector of atom-pairs proportions: use to develop models for melting points. Struct Chem 2021. [DOI: 10.1007/s11224-021-01778-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Abstract
In addition to proper physicochemical properties, low toxicity is also desirable when seeking suitable ionic liquids (ILs) for specific applications. In this context, machine learning (ML) models were developed to predict the IL toxicity in leukemia rat cell line (IPC-81) based on an extended experimental dataset. Following a systematic procedure including framework construction, hyper-parameter optimization, model training, and evaluation, the feedforward neural network (FNN) and support vector machine (SVM) algorithms were adopted to predict the toxicity of ILs directly from their molecular structures. Based on the ML structures optimized by the five-fold cross validation, two ML models were established and evaluated using IL structural descriptors as inputs. It was observed that both models exhibited high predictive accuracy, with the SVM model observed to be slightly better than the FNN model. For the SVM model, the determination coefficients were 0.9289 and 0.9202 for the training and test sets, respectively. The satisfactory predictive performance and generalization ability make our models useful for the computer-aided molecular design (CAMD) of environmentally friendly ILs.
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Low K, Kobayashi R, Izgorodina EI. The effect of descriptor choice in machine learning models for ionic liquid melting point prediction. J Chem Phys 2020; 153:104101. [DOI: 10.1063/5.0016289] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Kaycee Low
- Monash Computational Chemistry Group, Monash University, 17 Rainforest Walk, Clayton, VIC 3800, Australia
| | - Rika Kobayashi
- ANU Supercomputer Facility, Leonard Huxley Building 56, Mills Road, Canberra, ACT 2601, Australia
| | - Ekaterina I. Izgorodina
- Monash Computational Chemistry Group, Monash University, 17 Rainforest Walk, Clayton, VIC 3800, Australia
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Beckner W, Ashraf C, Lee J, Beck DAC, Pfaendtner J. Continuous Molecular Representations of Ionic Liquids. J Phys Chem B 2020; 124:8347-8357. [DOI: 10.1021/acs.jpcb.0c05938] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wesley Beckner
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - Chowdhury Ashraf
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - James Lee
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - David A. C. Beck
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - Jim Pfaendtner
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
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26
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Cellulose Nanocrystal and Water-Soluble Cellulose Derivative Based Electromechanical Bending Actuators. MATERIALS 2020; 13:ma13102294. [PMID: 32429292 PMCID: PMC7287802 DOI: 10.3390/ma13102294] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/08/2020] [Accepted: 05/13/2020] [Indexed: 11/18/2022]
Abstract
This study reports a versatile method for the development of cellulose nanocrystals (CNCs) and water-soluble cellulose derivatives (methyl cellulose (MC), hydroxypropyl cellulose (HPC), and sodium carboxymethyl cellulose (NaCMC)) films comprising the ionic liquid (IL) 2-hydroxy-ethyl-trimethylammonium dihydrogen phosphate ([Ch][DHP]) for actuator fabrication. The influence of the IL content on the morphology and physico–chemical properties of free-standing composite films was evaluated. Independently of the cellulose derivative, the ductility of the films increases upon [Ch][DHP] incorporation to yield elongation at break values of nearly 15%. An increase on the electrical conductivity as a result of the IL incorporation into cellulosic matrices is found. The actuator performance of composites was evaluated, NaCMC/[Ch][DHP] showing the maximum displacement along the x-axis of 9 mm at 8 Vpp. Based on the obtained high electromechanical actuation performance, together with their simple processability and renewable nature, the materials fabricated here represent a step forward in the development of sustainable soft actuators of high practical relevance.
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27
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QSPR models for the properties of ionic liquids at variable temperatures based on norm descriptors. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115540] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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28
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A review on created QSPR models for predicting ionic liquids properties and their reliability from chemometric point of view. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112013] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Predicting Melting Points of Biofriendly Choline-Based Ionic Liquids with Molecular Dynamics. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9245367] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this work, we introduce a simulation-based method for predicting the melting point of ionic liquids without prior knowledge of their crystal structure. We run molecular dynamics simulations of biofriendly, choline cation-based ionic liquids and apply the method to predict their melting point. The root-mean-square error of the predicted values is below 24 K. We advocate that such precision is sufficient for designing ionic liquids with relatively low melting points. The workflow for simulations is available for everyone and can be adopted for any species from the wide chemical space of ionic liquids.
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Lethesh KC, Evjen S, Raj JJ, Roux DCD, Venkatraman V, Jayasayee K, Fiksdahl A. Hydroxyl Functionalized Pyridinium Ionic Liquids: Experimental and Theoretical Study on Physicochemical and Electrochemical Properties. Front Chem 2019; 7:625. [PMID: 31620423 PMCID: PMC6759651 DOI: 10.3389/fchem.2019.00625] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/29/2019] [Indexed: 11/16/2022] Open
Abstract
Structurally modified hydroxyl functionalized pyridinium ionic liquids (ILs), liquid at room temperature, were synthesized and characterized. Alkylated N-(2-hydroxyethyl)-pyridinium ILs were prepared from alkylpyridines via corresponding bromide salts by N-alkylation (65–93%) and final anion exchange (75–96%). Pyridinium-alkylation strongly influenced the IL physicochemical and electrochemical properties. Experimental values for the ILs physicochemical properties (density, viscosity, conductivity, and thermal decomposition temperature), were in good agreement with corresponding predicted values obtained by theoretical calculations. The pyridinium ILs have electrochemical window of 3.0–5.4 V and were thermally stable up to 405°C. The IL viscosity and density were measured over a wide temperature range (25–80°C). Pyridine alkyl-substitution strongly affected the partial positive charge on the nitrogen atom of the pyridinium cations, as shown by charge distribution calculations. On-going studies on Mg complexes of the new ILs demonstrate promising properties for high current density electrodeposition of magnesium.
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Affiliation(s)
| | - Sigvart Evjen
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jaganathan Joshua Raj
- Center of Research in Ionic Liquids (CORIL), Universiti Teknologi PETRONAS, Perak, Malaysia
| | | | - Vishwesh Venkatraman
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
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Benvenutti L, Zielinski AAF, Ferreira SRS. Which is the best food emerging solvent: IL, DES or NADES? Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.06.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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32
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Abstract
Ionic liquids have a broad spectrum of applications ranging from gas separation to sensors and pharmaceuticals. Rational selection of the constituent ions is key to achieving tailor-made materials with functional properties. To facilitate the discovery of new ionic liquids for sustainable applications, we have created a virtual library of over 8 million synthetically feasible ionic liquids. Each structure has been evaluated for their-task suitability using data-driven statistical models calculated for 12 highly relevant properties: melting point, thermal decomposition, glass transition, heat capacity, viscosity, density, cytotoxicity, CO 2 solubility, surface tension, and electrical and thermal conductivity. For comparison, values of six properties computed using quantum chemistry based equilibrium thermodynamics COSMO-RS methods are also provided. We believe the data set will be useful for future efforts directed towards targeted synthesis and optimization.
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Li Y, Zhang S, Ding Q, Qin B, Hu L. Versatile 4, 6-dimethyl-2-mercaptopyrimidine based ionic liquids as high-performance corrosion inhibitors and lubricants. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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