Peter Stange
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View article: Role of Hydrogen Bond Defects for Cluster Formation and Distribution in Ionic Liquids by Means of Neutron Diffraction and Molecular Dynamics Simulations
Role of Hydrogen Bond Defects for Cluster Formation and Distribution in Ionic Liquids by Means of Neutron Diffraction and Molecular Dynamics Simulations Open
Defects fundamentally govern the properties of all real materials. Correlating molecular defects to macroscopic quantities remains a challenge, particularly in the liquid phase. Herein, we report the influence of hydrogen bonds (HB) acting…
View article: Front Cover: The Influence of Deuterium Isotope Effects on Structural Rearrangements, Ensemble Equilibria, and Hydrogen Bonding in Protic Ionic Liquids (ChemPhysChem 23/2022)
Front Cover: The Influence of Deuterium Isotope Effects on Structural Rearrangements, Ensemble Equilibria, and Hydrogen Bonding in Protic Ionic Liquids (ChemPhysChem 23/2022) Open
The Front Cover illustrates the isotope effects for the protic ionic liquid (PIL) triethylammonium methanesulfonate as explored by deuterium solid-state NMR spectroscopy. The 2H NMR line shape analysis provides deuteron quadrupole coupling…
View article: The Influence of Deuterium Isotope Effects on Structural Rearrangements, Ensemble Equilibria, and Hydrogen Bonding in Protic Ionic Liquids
The Influence of Deuterium Isotope Effects on Structural Rearrangements, Ensemble Equilibria, and Hydrogen Bonding in Protic Ionic Liquids Open
We report strong isotope effects for the protic ionic liquid triethylammonium methanesulfonate [TEA][OMs] by means of deuterium solid‐state NMR spectroscopy covering broad temperature ranges from 65 K to 313 K. Both isotopically labelled P…
View article: The influence of deuterium isotope effects on structural rearrangements, ensemble equilibria, and hydrogen bonding in protic ionic liquids
The influence of deuterium isotope effects on structural rearrangements, ensemble equilibria, and hydrogen bonding in protic ionic liquids Open
We report strong isotope effects for the protic ionic liquid triethylammonium methanesulfonate [TEA][OMs] by means of deuterium solid-state NMR spectroscopy covering broad temperature ranges from 65 K to 313 K. Both isotopically labelled P…
Structure, hydrogen bond dynamics and phase transition in a model ionic liquid electrolyte Open
The N–D bonds of triethylammonium cations in protic ionic liquids jump between equally populated sites. The librational angles increase with the interaction strength of the anions from strong to weak.
Structure, hydrogen bond dynamics and phase transition in a prototypical ionic liquid electrolyte Open
Ionic liquids (ILs) gain much interest as possible electrolytes in the next generation of mixed-solid Li-ion batteries. However, such properties of ionic liquids as melting transition, diffusion, strength and structure of hydrogen bond net…
View article: Front Cover: Three in One: The Versatility of Hydrogen Bonding Interaction in Halide Salts with Hydroxy‐Functionalized Pyridinium Cations (ChemPhysChem 18/2021)
Front Cover: Three in One: The Versatility of Hydrogen Bonding Interaction in Halide Salts with Hydroxy‐Functionalized Pyridinium Cations (ChemPhysChem 18/2021) Open
The Front Cover shows one of the three types of hydrogen bonding observed in hydroxy-functionalized halide salts. Here, the halide anion forms a hydrogen bond to the hydroxy group and interacts with the ring system of the cation at the sam…
View article: Three in One: The Versatility of Hydrogen Bonding Interaction in Halide Salts with Hydroxy‐Functionalized Pyridinium Cations
Three in One: The Versatility of Hydrogen Bonding Interaction in Halide Salts with Hydroxy‐Functionalized Pyridinium Cations Open
The paradigm of supramolecular chemistry relies on the delicate balance of noncovalent forces. Here we present a systematic approach for controlling the structural versatility of halide salts by the nature of hydrogen bonding interactions.…
Simplified Heat Load Profile Generation Open
A method is presented which allows the computation of time resolved profiles of the heat load and the return temperature of buildings. The approach is primarily applied if only a few building information is available. It contains an existi…
View article: Hydrogen Bonding Between Ions of Like Charge in Ionic Liquids Characterized by NMR Deuteron Quadrupole Coupling Constants—Comparison with Salt Bridges and Molecular Systems
Hydrogen Bonding Between Ions of Like Charge in Ionic Liquids Characterized by NMR Deuteron Quadrupole Coupling Constants—Comparison with Salt Bridges and Molecular Systems Open
We present deuteron quadrupole coupling constants (DQCC) for hydroxyl‐functionalized ionic liquids (ILs) in the crystalline or glassy states characterizing two types of hydrogen bonding: The regular Coulomb‐enhanced hydrogen bonds between …
View article: Hydrogen Bonding Between Ions of Like Charge in Ionic Liquids Characterized by NMR Deuteron Quadrupole Coupling Constants—Comparison with Salt Bridges and Molecular Systems
Hydrogen Bonding Between Ions of Like Charge in Ionic Liquids Characterized by NMR Deuteron Quadrupole Coupling Constants—Comparison with Salt Bridges and Molecular Systems Open
We present deuteron quadrupole coupling constants (DQCC) for hydroxyl‐functionalized ionic liquids (ILs) in the crystalline or glassy states characterizing two types of hydrogen bonding: The regular Coulomb‐enhanced hydrogen bonds between …
Inside Back Cover: Dissecting the Vaporization Enthalpies of Ionic Liquids by Exclusively Experimental Methods: Coulomb Interaction, Hydrogen Bonding, and Dispersion Forces (Angew. Chem. Int. Ed. 25/2019) Open
The secrets of ionic liquids’ properties rely on the delicate balance between Coulomb interaction, hydrogen bonding and dispersion forces. In their Communication on page 8589 ff., S. P. Verevkin, R. Ludwig et al. show how these different t…
View article: Cover Feature: Like‐likes‐Like: Cooperative Hydrogen Bonding Overcomes Coulomb Repulsion in Cationic Clusters with Net Charges up to <i>Q</i>=+6<i>e</i> (ChemPhysChem 14/2018)
Cover Feature: Like‐likes‐Like: Cooperative Hydrogen Bonding Overcomes Coulomb Repulsion in Cationic Clusters with Net Charges up to <i>Q</i>=+6<i>e</i> (ChemPhysChem 14/2018) Open
The Cover Feature visualizes how hydrogen bonding can overcome Coulomb repulsion in clusters of like-charged ions. In their communication Ludwig et al. report kinetically stable cationic clusters with a high net charge up to Q=+6e. Despite…
View article: Like‐likes‐Like: Cooperative Hydrogen Bonding Overcomes Coulomb Repulsion in Cationic Clusters with Net Charges up to <i>Q</i>=+6<i>e</i>
Like‐likes‐Like: Cooperative Hydrogen Bonding Overcomes Coulomb Repulsion in Cationic Clusters with Net Charges up to <i>Q</i>=+6<i>e</i> Open
Quantum chemical calculations have been employed to study kinetically stable cationic clusters, wherein the monovalent cations are trapped by hydrogen bonding despite strongly repulsive electrostatic forces. We calculated linear and cyclic…
View article: Inside Cover: Characterization of Doubly Ionic Hydrogen Bonds in Protic Ionic Liquids by NMR Deuteron Quadrupole Coupling Constants: Differences to H‐bonds in Amides, Peptides, and Proteins (Angew. Chem. Int. Ed. 45/2017)
Inside Cover: Characterization of Doubly Ionic Hydrogen Bonds in Protic Ionic Liquids by NMR Deuteron Quadrupole Coupling Constants: Differences to H‐bonds in Amides, Peptides, and Proteins (Angew. Chem. Int. Ed. 45/2017) Open
Hydrogen bonds between ions are identified by the first deuteron quadrupole coupling constants (DQCCs) for protic ionic liquids (PILs), measured by solid-state NMR spectroscopy. In their Communication on page 14310 ff. D. I. Kolokolov, R. …
Cover Picture: Spectroscopic Evidence for Clusters of Like‐Charged Ions in Ionic Liquids Stabilized by Cooperative Hydrogen Bonding (ChemPhysChem 4/2016) Open
Graphical Abstract Cyclic tetramer of hydrogen-bonded cations in the 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate ionic liquid. Weinhold, Ludwig et al. could assign the observed vibrational modes in the infrared spectra to DFT-…
Spectroscopic Evidence for Clusters of Like‐Charged Ions in Ionic Liquids Stabilized by Cooperative Hydrogen Bonding Open
The front cover artwork is provided by the group of Prof. Ralf Ludwig at the University of Rostock in collaboration with Prof. Frank Weinhold at the University of Wisconsin Madison. The image shows the cyclic tetramer of hydrogen bonded ca…