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Ionic Liquids

Ionic Liquids

I am interested in investigating the fascinating properties of ionic liquids, in particu­lar their hydrogen bond network and their unique solubility properties. In my group, we study the dissolution of cellulose in ionic liquids. For example, we have established triazolium-based ionic liquids as a novel class of cellulose sol­vents. We also develop force fields for ionic liquids and their mixtures.



— Related Publications —

33 of my publications are related to ionic liquids:

The numbers in front of the articles below refer to the full chronological publication list.

61M. Lass, T. Kenter, C. Plessl, M. Brehm*:
"Characterizing Microheterogeneity in Liquid Mixtures via Local Density Fluctuations"
Entropy 2024, 26 (4), 322.     (1 citations,  DOI  10.3390/e26040322 ) ⭳Bib
Open Access
60E. Roos, C. Gradaus, D. Sebastiani, M. Brehm*:
"A Force Field for the Solubility of Cellulose in DMSO/Ionic Liquids"
Cellulose 2024, 31, 4793–4815.     (1 citations,  DOI  10.1007/s10570-024-05854-4 ) ⭳Bib
Open Access
58E. Roos, D. Sebastiani, M. Brehm*:
"BILFF: All-Atom Force Field for Modeling Triazolium- and Benzoate-Based Ionic Liquids"
Molecules 2023, 28 (22), 7592.     (2 citations,  DOI  10.3390/molecules28227592 ) ⭳Bib
Open Access
56E. Roos, D. Sebastiani, M. Brehm*:
"A Force Field for Bio-Polymers in Ionic Liquids (BILFF) – Part 2: Cellulose in [EMIm][OAc] / Water Mixtures"
Phys. Chem. Chem. Phys. 2023, 25 (12), 8755–8766.     (3 citations,  DOI  10.1039/D2CP05636D ) ⭳Bib
55J. Radicke, E. Roos, D. Sebastiani, M. Brehm*, J. Kressler*:
"Lactate-Based Ionic Liquids as Chiral Solvents for Cellulose"
J. Polym. Sci. 2023, 61 (5), 372–384.     (2 citations,  DOI  10.1002/pol.20220687 ) ⭳Bib
Cover ArtOpen Access
53T. Frömbgen, J. Blasius, V. Alizadeh, A. Chaumont, M. Brehm*, B. Kirchner*:
"Cluster Analysis in Liquids: A Novel Tool in TRAVIS"
J. Chem. Inf. Model. 2022, 62 (22), 5634–5644.     (9 citations,  DOI  10.1021/acs.jcim.2c01244 ) ⭳Bib
50A. Triolo*, M. E. Di Pietro, A. Mele, F. Lo Celso, M. Brehm, V. Di Lisio, A. Martinelli, P. Chater, O. Russina*:
"Liquid Structure and Dynamics in the Choline Acetate:Urea 1:2 Deep Eutectic Solvent"
J. Chem. Phys. 2021, 154, 244501.     (20 citations,  DOI  10.1063/5.0054048 ) ⭳Bib
Open Access
48M. Brehm*, M. Thomas:
"Optimized Atomic Partial Charges and Radii Defined by Radical Voronoi Tessellation of Bulk Phase Simulations"
Molecules 2021, 26 (7), 1875.     (5 citations,  DOI  10.3390/molecules26071875 ) ⭳Bib
Open Access
45E. Roos, M. Brehm*:
"A Force Field for Bio-Polymers in Ionic Liquids (BILFF) – Part 1: [EMIm][OAc] / Water Mixtures"
Phys. Chem. Chem. Phys. 2021, 23, 1242–1253.     (11 citations,  DOI  10.1039/D0CP04537C ) ⭳Bib
41M. Brehm*, J. Radicke, M. Pulst, F. Shaabani, D. Sebastiani, J. Kressler:
"Dissolving Cellulose in 1,2,3-Triazolium- and Imidazolium-Based Ionic Liquids with Aromatic Anions"
Molecules 2020, 25 (15), 3539.     (31 citations,  DOI  10.3390/molecules25153539 ) ⭳Bib
Open Access
35M. Brehm*, M. Pulst, J. Kressler, D. Sebastiani:
"Triazolium-Based Ionic Liquids – A Novel Class of Cellulose Solvents"
J. Phys. Chem. B 2019, 123 (18), 3994–4003.     (50 citations,  DOI  10.1021/acs.jpcb.8b12082 ) ⭳Bib
Cover ArtOpen Access
33U. Cerajewski, J. Träger, S. Henkel, A. H. Roos, M. Brehm, D. Hinderberger*:
"Nanoscopic Structures and Molecular Interactions Leading to a Dystectic and two Eutectic Points in [EMIm][Cl] / Urea Mixtures"
Phys. Chem. Chem. Phys. 2018, 20, 29591–29600.     (15 citations,  DOI  10.1039/C8CP04912B ) ⭳Bib
Cover Art
31M. Brehm*, D. Sebastiani:
"Simulating Structure and Dynamics in Small Droplets of 1-Ethyl-3-Methylimidazolium Acetate"
J. Chem. Phys. 2018, 148, 193802.     (21 citations,  DOI  10.1063/1.5010342 ) ⭳Bib
30S. Gehrke, M. von Domaros, R. Clark, O. Hollóczki, M. Brehm, T. Welton, A. Luzar, B. Kirchner*:
"Structure and Lifetimes in Ionic Liquids and their Mixtures"
Faraday Discuss. 2018, 206, 219–245.     (73 citations,  DOI  10.1039/C7FD00166E ) ⭳Bib
23M. Thomas*, M. Brehm, B. Kirchner*:
"Voronoi Dipole Moments for the Simulation of Bulk Phase Vibrational Spectra"
Phys. Chem. Chem. Phys. 2015, 17, 3207–3213.     (97 citations,  DOI  10.1039/C4CP05272B ) ⭳Bib
22M. Brehm, H. Weber, M. Thomas, O. Hollóczki, B. Kirchner*:
"Domain Analysis in Nanostructured Liquids: A Post-Molecular Dynamics Study at the Example of Ionic Liquids"
ChemPhysChem 2015, 16 (15), 3271–3277.     (114 citations,  DOI  10.1002/cphc.201500471 ) ⭳Bib
21O. Hollóczki, M. Macchiagodena, H. Weber, M. Thomas, M. Brehm, A. Stark, O. Russina, A. Triolo, B. Kirchner*:
"Triphilic Ionic-Liquid Mixtures: Fluorinated and Non-Fluorinated Aprotic Ionic-Liquid Mixtures"
ChemPhysChem 2015, 16 (15), 3325–3333.     (115 citations,  DOI  10.1002/cphc.201500473 ) ⭳Bib
Open Access
20A. Stark*, M. Brehm, M. Brüssel, S. B. C. Lehmann, A. S. Pensado, M. Schöppke, B. Kirchner:
"A Theoretical and Experimental Chemist’s Joint View on Hydrogen Bonding in Ionic Liquids and Their Binary Mixtures"
Top. Curr. Chem. 2014, 351, 149–187.     (34 citations,  DOI  10.1007/128_2013_485 ) ⭳Bib
19M. Thomas, M. Brehm, O. Hollóczki, Z. Kelemen, L. Nyulászi, T. Pasinszki*, B. Kirchner*:
"Simulating the Vibrational Spectra of Ionic Liquid Systems: 1-Ethyl-3-Methylimidazolium Acetate and its Mixtures"
J. Chem. Phys. 2014, 141, 024510.     (81 citations,  DOI  10.1063/1.4887082 ) ⭳Bib
18R. Giernoth*, A. Bröhl, M. Brehm, Y. Lingscheid:
"Interactions in Ionic Liquids probed by in situ NMR Spectroscopy"
J. Mol. Liq. 2014, 192, 55–58.     (31 citations,  DOI  10.1016/j.molliq.2013.07.010 ) ⭳Bib
17S. Zahn, M. Brehm, M. Brüssel, O. Hollóczki, M. Kohagen, S. B. C. Lehmann, F. Malberg, A. S. Pensado, M. Schöppke, H. Weber, B. Kirchner*:
"Understanding Ionic Liquids from Theoretical Methods"
J. Mol. Liq. 2014, 192, 71–76.     (62 citations,  DOI  10.1016/j.molliq.2013.08.015 ) ⭳Bib
16M. Thomas, M. Brehm, O. Hollóczki*, B. Kirchner*:
"How Can a Carbene be Active in an Ionic Liquid?"
Chem. Eur. J 2014, 20 (6), 1622–1629.     (48 citations,  DOI  10.1002/chem.201303329 ) ⭳Bib
15F. Malberg, M. Brehm, O. Hollóczki, A. S. Pensado, B. Kirchner*:
"Understanding the Evaporation of Ionic Liquids using the Example of 1-Ethyl-3-Methylimidazolium Ethylsulfate"
Phys. Chem. Chem. Phys. 2013, 15, 18424–18436.     (30 citations,  DOI  10.1039/C3CP52966E ) ⭳Bib
13M. Brehm, H. Weber, A. S. Pensado, A. Stark, B. Kirchner*:
"Liquid Structure and Cluster Formation in Ionic Liquid/Water Mixtures – An Extensive ab initio Molecular Dynamics Study on 1-Ethyl-3-Methylimidazolium Acetate/Water Mixtures – Part 2"
Z. Phys. Chem. 2013, 227, 177–203.     (50 citations,  DOI  10.1524/zpch.2012.0327 ) ⭳Bib
12O. Hollóczki*, D. S. Firaha, J. Friedrich, M. Brehm, R. Cybik, M. Wild, A. Stark, B. Kirchner*:
"Carbene Formation in Ionic Liquids: Spontaneous, Induced, or Prohibited?"
J. Phys. Chem. B 2013, 117 (19), 5898–5907.     (107 citations,  DOI  10.1021/jp4004399 ) ⭳Bib
10M. Brüssel, M. Brehm, A. S. Pensado, F. Malberg, M. Ramzan, A. Stark*, B. Kirchner*:
"On the Ideality of Binary Mixtures of Ionic Liquids"
Phys. Chem. Chem. Phys. 2012, 14, 13204–13215.     (89 citations,  DOI  10.1039/C2CP41926B ) ⭳Bib
9K. Wendler, M. Brehm, F. Malberg, B. Kirchner, L. Delle Site*:
"Short Time Dynamics of Ionic Liquids in AIMD-Based Power Spectra"
J. Chem. Theory Comput. 2012, 8 (5), 1570–1579.     (71 citations,  DOI  10.1021/ct300152t ) ⭳Bib
8M. Brehm, H. Weber, A. S. Pensado, A. Stark, B. Kirchner*:
"Proton Transfer and Polarity Changes in Ionic Liquid–Water Mixtures: A Perspective on Hydrogen Bonds from ab initio Molecular Dynamics at the Example of 1-Ethyl-3-Methylimidazolium Acetate–Water Mixtures—Part 1"
Phys. Chem. Chem. Phys. 2012, 14, 5030–5044.     (136 citations,  DOI  10.1039/C2CP23983C ) ⭳Bib
7A. S. Pensado, M. Brehm, J. Thar, A. P. Seitsonen, B. Kirchner*:
"Effect of Dispersion on the Structure and Dynamics of the Ionic Liquid 1-Ethyl-3-Methylimidazolium Thiocyanate"
ChemPhysChem 2012, 13 (7), 1845–1853.     (81 citations,  DOI  10.1002/cphc.201100917 ) ⭳Bib
6M. Kohagen, M. Brehm, Y. Lingscheid, R. Giernoth, J. Sangoro, F. Kremer, S. Naumov, C. Iacob, J. Kärger, R. Valiullin, B. Kirchner*:
"How Hydrogen Bonds Influence the Mobility of Imidazolium-Based Ionic Liquids. A Combined Theoretical and Experimental Study of 1-n-Butyl-3-Methylimidazolium Bromide"
J. Phys. Chem. B 2011, 115 (51), 15280–15288.     (116 citations,  DOI  10.1021/jp206974h ) ⭳Bib
4M. Brüssel, M. Brehm, T. Voigt, B. Kirchner*:
"Ab initio Molecular Dynamics Simulations of a Binary System of Ionic Liquids"
Phys. Chem. Chem. Phys. 2011, 13, 13617–13620.     (69 citations,  DOI  10.1039/C1CP21550G ) ⭳Bib
3M. Kohagen, M. Brehm, J. Thar, W. Zhao, F. Müller-Plathe, B. Kirchner*:
"Performance of Quantum Chemically Derived Charges and Persistence of Ion Cages in Ionic Liquids. A Molecular Dynamics Simulations Study of 1-n-Butyl-3-Methylimidazolium Bromide"
J. Phys. Chem. B 2011, 115 (4), 693–702.     (136 citations,  DOI  10.1021/jp109612k ) ⭳Bib
1J. Thar, M. Brehm, A. P. Seitsonen, B. Kirchner*:
"Unexpected Hydrogen Bond Dynamics in Imidazolium-Based Ionic Liquids"
J. Phys. Chem. B 2009, 113 (46), 15129–15132.     (112 citations,  DOI  10.1021/jp908110j ) ⭳Bib