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Denayer M, Vekeman J, Tielens F, De Proft F. Towards a predictive model for polymer solubility using the noncovalent interaction index: polyethylene as a case study. Phys Chem Chem Phys 2021; 23:25374-25387. [PMID: 34751286 DOI: 10.1039/d1cp04346c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we present the development of a novel, quantitative solubility descriptor based on the non-covalent interaction index. It is presented as a more insightful alternative to Hansen's solubility parameters and the COSMO model to assess and predict polymer solubility in different solvents. To this end, we studied the solvation behaviour as a function of the chain length of a single chain of arguably the most simple polymer, polyethylene, in anisole (solvent) and methanol (poor solvent) via molecular dynamics simulations. It was found that in anisole the solute maximized its interface with the solvent, whereas in methanol the macromolecule formed rod-like structures by folding on itself once the chain length surpassed a certain barrier. We assessed this behaviour - which can be related to solubility - quantitatively and qualitatively via well-known descriptors, namely the solvation free energy, and the solvent accessible surface area. In addition, we propose the non-covalent interaction (NCI) index as a versatile descriptor, providing information on the strength, as well as the nature, of the solute-solvent interactions, the solute's intramolecular interactions and on the solute's conformation, both qualitatively and quantitatively. Finally, as a quantitative measure for solubility, defined in this context as the solute's tendency to maximize its interactions with the solvent, we propose two new NCI-based descriptors: the relative integrated NCI density and the integrated NCI difference. The former represents the quantitative difference in solute-solvent interactions between a fully extended coil and the actual conformation during simulation and the latter the quantitative difference between the intermolecular (solute-solvent) and the intramolecular (in the solute) non-covalent interactions. The easy interpretation and calculation of these novel quantities open up the possibility of fast, reliable and insightful high-throughput screening of different (anti)solvent and solute combinations.
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Affiliation(s)
- Mats Denayer
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.
| | - Jelle Vekeman
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.
| | - Frederik Tielens
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.
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2
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Mezey PG. From quantum similarity measures to quantum analogy functors: tools for QShAR, quantitative shape-activity relations. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02745-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gryl M, Ostrowska K, Barquera-Lozada JE, Stadnicka KM. Unveiling the Impact of Aggregation on Optical Anisotropy of Triazaacephenanthrylene Single Crystals. A Combined Quantum Crystallography and Conceptual Density Functional Theory Approach. J Phys Chem A 2020; 124:2931-2941. [PMID: 32135065 PMCID: PMC7497651 DOI: 10.1021/acs.jpca.9b10651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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Triazaacephenanthrylene
(TAAP) triclinic single crystals show substantial
optical anisotropy of absorption and fluorescence. The maximum effect
can be correlated with the direction perpendicular to the plane of
chromophores connected in a head-to-tail manner via weak dispersive
interactions. This phenomenon is uncommon as usually the existence
of postulated π···π interactions between
the molecules forming dimers or stacks cause quenching of fluorescence.
Herein we present a comprehensive study of inter- and intramolecular
interactions in the crystal of TAAP enriched with the investigation
of aromaticity. Our results show that intramolecular interactions
stabilize the overall conformation of the molecule whereas dispersive
forces determine the aggregation between TAAP molecules. In fact,
there is no conventional π···π interaction
between the molecules in the dimer. Instead, we observed a close contact
between the lone pair of the bridgehead N10B atom and π-deficient
pyrazine ring from an adjacent molecule. Optical anisotropy in TAAP
crystals was directly correlated with the alignment of the molecular
transition dipole moments caused by specific molecular self-assembly.
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Affiliation(s)
- Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Katarzyna Ostrowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jose Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito exterior, Ciudad Universitaria Coyoacán, México, DF 04510, Mexico
| | - Katarzyna M Stadnicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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Barroso J, Murillo F, Martínez-Guajardo G, Ortíz-Chi F, Pan S, Fernández-Herrera MA, Merino G. Bonding and Mobility of Alkali Metals in Helicenes. Chemistry 2018; 24:11227-11233. [DOI: 10.1002/chem.201802222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/24/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Jorge Barroso
- Departmento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida; Km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex 97310 Mérida Yuc. México
| | - Fernando Murillo
- Departmento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida; Km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex 97310 Mérida Yuc. México
- DACB; Universidad Juárez Autónoma de Tabasco; A.P. 24, C.P. 86690 Cunduacán, Table México
| | - Gerardo Martínez-Guajardo
- Unidad Académica de Ciencias Químicas; Universidad Autónomca de Zacatecas; Km. 6 carr. Zacatecas-Guadalajara s/n 98610 Zacatecas, Zac. México
| | - Filiberto Ortíz-Chi
- DACB; Universidad Juárez Autónoma de Tabasco; A.P. 24, C.P. 86690 Cunduacán, Table México
| | - Sudip Pan
- Departmento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida; Km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex 97310 Mérida Yuc. México
| | - María A. Fernández-Herrera
- Departmento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida; Km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex 97310 Mérida Yuc. México
| | - Gabriel Merino
- Departmento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida; Km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex 97310 Mérida Yuc. México
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Su H, Wu Q, Wang H, Wang H. An assessment of the random-phase approximation functional and characteristics analysis for noncovalent cation-π interactions. Phys Chem Chem Phys 2017; 19:26014-26021. [PMID: 28920597 DOI: 10.1039/c7cp04504b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding energy is of great importance in understanding the formation and stability of noncovalent interactions. However, the determination of the binding energy with high precision and efficiency in medium- and long-range noncovalent interactions is still challenging for quantum chemistry. Here, we assess the performance of random-phase approximation (RPA), a fully non-local fifth-rung of the Jacob ladder functional, in determining the binding energy of cation-π systems (cation = Li+, Na+, Be2+, Mg2+, Al+, and NH4+; π = C6H6), which, to the best of our knowledge, has not been investigated. Using experimental results as the benchmark, we systematically compared the RPA method to the other ab initio methods (DFT/B3LYP, MP2, CCSD(T), and QCISD(T)) both in calculation accuracy and efficiency. From the perspective of accuracy, RPA is the best among these approaches, followed by the CCSD(T) and QCISD(T) methods. DFT/B3LYP and MP2 provide the worst accuracy. In addition, the computational efficiency of RPA is much faster than that of CCSD(T) and QCISD(T). We believe that RPA is a robust method for the precise description of medium- and long-range noncovalent interactions and is capable of providing benchmarking data. The interaction strength and interaction nature of cation-π systems are further analyzed by atoms in molecules (AIM) and the color-mapped reduced density gradient (RDG) isosurface, which are consistent with the characteristics of a typical cation-π interaction.
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Affiliation(s)
- He Su
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China.
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6
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A computational study on the role of noncovalent interactions in the stability of polymer/graphene nanocomposites. J Mol Model 2017; 23:43. [DOI: 10.1007/s00894-017-3214-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/09/2017] [Indexed: 10/20/2022]
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8
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Foroutan-Nejad C, Badri Z, Marek R. Multi-center covalency: revisiting the nature of anion–π interactions. Phys Chem Chem Phys 2015; 17:30670-9. [DOI: 10.1039/c5cp05777a] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Plot of the delocalization index, δ(X−,Ω), scaled by the internuclear distance, RX,Ω, versus the exchange–correlation potential energy, VXC(X−,Ω), for anion–π complexes.
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Affiliation(s)
- Cina Foroutan-Nejad
- CEITEC – Central European Institute of Technology
- Masaryk University
- CZ-625 00 Brno
- Czech Republic
| | - Zahra Badri
- CEITEC – Central European Institute of Technology
- Masaryk University
- CZ-625 00 Brno
- Czech Republic
| | - Radek Marek
- CEITEC – Central European Institute of Technology
- Masaryk University
- CZ-625 00 Brno
- Czech Republic
- Department of Chemistry
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9
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Geboes Y, Nagels N, Pinter B, De Proft F, Herrebout WA. Competition of C(sp2)–X···O Halogen Bonding and Lone Pair···π Interactions: Cryospectroscopic Study of the Complexes of C2F3X (X = F, Cl, Br, and I) and Dimethyl Ether. J Phys Chem A 2014; 119:2502-16. [DOI: 10.1021/jp5087812] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yannick Geboes
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
- Eenheid
Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research
Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Nick Nagels
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Balazs Pinter
- Eenheid
Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research
Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Frank De Proft
- Eenheid
Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research
Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Wouter A. Herrebout
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
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