Article
Chemistry, Multidisciplinary
Bozheng Sun, Meagan S. Oakley, Kota Yoshida, Yanwen Yang, Matteo Tommasini, Chiara Zanchi, Andrea Lucotti, Michael J. Ferguson, Frank Hampel, Mariusz Klobukowski, Rik R. Tykwinski
Summary: Cyclic tetraaryl[5]cumulenes were synthesized and studied to understand the effects of increasing ring strain. Analysis through X-ray crystallography and DFT calculations showed that while there were observable trends in C-13 NMR, UV-vis, and Raman spectra associated with ring strain, the HOMO-LUMO gap was not significantly affected by the bending of the [5]cumulene framework.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Nils Schopper, Johannes Landmann, Jan A. P. Sprenger, Ludwig Zapf, Ruediger Bertermann, Nikolai V. Ignat'ev, Maik Finze
Summary: A set of easily synthesized mixed-substituted potassium alkylcyano- and alkylcyanofluoroborates were characterized by various spectroscopic techniques and single-crystal X-ray diffraction. The physicochemical properties of the resulting 1-ethyl-3-methylimidazolium room temperature ionic liquids (RTILs) with the new borate anions were compared to related RTILs, demonstrating high stability, low viscosity, and high conductivity. The study also highlighted the potential of fluorine-free borate anions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Bela Urban, Gabor Szalontai, Mate Papp, Csaba Feher, Attila C. Benyei, Rita Skoda-Foldes
Summary: Numerous organic reactions catalyzed by the ionic liquid product of chlorosulfonation of 1-methylimidazole have been reported recently. Controversial assumptions on the real structure of the catalyst have emerged, but it has now been confirmed to be 1-methylimidazolium chlorosulfate. This structure was verified through X-ray crystallography and NMR spectroscopy, with experiments supporting rapid hydrolysis in the presence of water traces.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Steffen M. Brulls, Valentina Cantatore, Pui Lam Tam, Per Malmberg, Elisabet Ahlberg, Itai Panas, Siegfried Eigler, Jerker Martensson
Summary: Functionalization and modulation of graphene's electronic properties using organic polycations were investigated. Wet-chemical non-covalent functionalization was performed on chemical vapor deposition graphene and reduced graphene oxide. The number of anions and the properties of the benzimidazole-based systems were found to play a crucial role in determining the redox properties and bonding to graphene. This study provides insights into the cooperative effects of the system's structure and anions on the binding affinity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
John Brown, Juan Forero-Saboya, Benoit Baptiste, Martin Karlsmo, Gwenaelle Rousse, Alexis Grimaud
Summary: This study investigates a design principle for aqueous battery electrolytes by combining chaotropic ions and imide anions to form GdmTFSI salt. The study reveals that GdmTFSI salt disrupts the hydrogen bonding network of aqueous solutions, reducing water reactivity and expanding the electrochemical stability window.
CHEMICAL COMMUNICATIONS
(2023)
Article
Crystallography
Youness El Bakri, Shaaban K. Mohamed, Atazaz Ahsin, Etify A. Bakhite, Islam S. Marae, Safiyyah A. H. Al-waleedy, Joel T. Mague, Rashad Al-Salahi
Summary: This study elaborates on the synthesis, crystal structure, and computational studies of two new ionic liquids. Experimental results show that these ionic liquids possess stable crystal structures and unique intermolecular interactions. Theoretical studies further reveal their structural and electronic properties, as well as their optical and nonlinear optical properties.
Article
Chemistry, Multidisciplinary
Matic Lozinsek, Helene P. A. Mercier, Gary J. Schrobilgen
Summary: The coordination chemistry of KrF2 is limited compared to XeF2, but in this study, new mixed krypton/xenon compounds were synthesized where KrF2 acts as a ligand coordinating to xenon atoms. This extends the XeF2-KrF2 analogy and introduces a new class of coordination compound.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Silke Wolf, Stefan Seidel, Jens Treptow, Ralf Koppe, Peter W. Roesky, Claus Feldmann
Summary: The novel tin(II) oxychloride [BMIm][Sn5O2Cl7] was obtained by reacting black SnO and SnCl2 in an ionic liquid, resulting in one-dimensional chains cut out of the two-dimensional layer structure of SnO, validated by dissolution experiments.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Matthias A. Grasser, Tobias Pietsch, Jan Blasius, Oldamur Holloczki, Eike Brunner, Thomas Doert, Michael Ruck
Summary: Elemental tellurium can dissolve in ionic liquids based on tetraalkylphosphonium cations, forming tellurium anions with varying chain lengths. Studies have suggested that the dissolution mechanism of tellurium is likely to involve disproportionation, with electrostatic interactions stabilizing the tellurium ions in solution.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Matthias A. Grasser, Tobias Pietsch, Jan Blasius, Oldamur Holloczki, Eike Brunner, Thomas Doert, Michael Ruck
Summary: Elemental tellurium readily dissolves in ionic liquids based on tetraalkylphosphonium cations, forming tellurium anions in dynamic equilibrium with different chain lengths. Cyclic voltammetry and electrodeposition experiments confirmed the coexistence of tellurium cations and tellurium anions in solution, stabilized by electrostatic interactions with the ions of the ionic liquids.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Loai Al Sheakh, Thomas Niemann, Alexander Villinger, Peter Stange, Dzmitry H. Zaitsau, Anne Strate, Ralf Ludwig
Summary: The structural versatility of halide salts can be controlled by the nature of hydrogen bonding interactions. Two types of hydrogen bonding, 'intra-ionic' and 'inter-ionic', are observed in the X-ray structures of these salts. Additionally, a third type of hydrogen bonding is found in some molten halide salts.
Article
Chemistry, Physical
Niyousha Karimi, Maider Zarrabeitia, Alessandro Mariani, Daniele Gatti, Alberto Varzi, Stefano Passerini
Summary: Cyano-based ionic liquids are considered ideal materials for manufacturing cheaper and safer batteries. This study evaluates N-methyl-N-butylpyrrolidinium-based ILs with different cyano-based anions as potential electrolytes for lithium metal batteries, demonstrating good ionic conductivity and electrochemical stability suitable for low-voltage LMBs. Characterization and analysis of the solid electrolyte interphase formed in these ILs provide insights into their high cycling stability. Density functional theory and molecular dynamics simulations support the experimental evidence.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mikaela Mary F. Pyrch, Jennifer L. Bjorklund, James M. Williams, Maguire Kasperski, Sara E. Mason, Tori Z. Forbes
Summary: In this study, the impact of hydrogen bonding networks on the vibrational modes of the uranyl cation in hexavalent uranium materials was investigated. The synthesis and structural characterization of five novel compounds revealed that slight changes in crystalline packing and hydrogen bonding networks result in modifications of the vibrational modes, as observed by infrared and Raman spectroscopy.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Matteo Busato, Paola D'Angelo, Andrea Lapi, Francesco Tavani, Daniele Veclani, Marilena Tolazzi, Andrea Melchior
Summary: The solvation of the Ag+ ion in the [C4mim][BF4] ionic liquid has been investigated using experimental and theoretical methods. Car-Parrinello molecular dynamics simulations revealed a coordination structure where the Ag+ ion is coordinated by an average of four [BF4]- anions. The solvational equilibrium and the solvation thermodynamic parameters were also studied.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemistry & Molecular Biology
Thomas Gabler, Andrea Dali, Federico Sebastiani, Paul Georg Furtmueller, Maurizio Becucci, Stefan Hofbauer, Giulietta Smulevich
Summary: Understanding the reaction mechanism of enzymes is challenging, but studying model substrates can provide valuable information. In this study, we investigated the mechanism of ferrous iron incorporation in a bacterial enzyme complex and discovered the role of hydrogen bond interactions in this process.
Article
Chemistry, Physical
Alfonso Ballestas-Barrientos, Xiaobo Li, Samuel Yick, Alexander Yuen, Anthony F. Masters, Thomas Maschmeyer
Article
Chemistry, Multidisciplinary
Ellen B. Hemming, Anthony F. Masters, Thomas Maschmeyer
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Matthew Y. Lui, Bun Chan, Alexander K. L. Yuen, Anthony F. Masters, Thomas Maschmeyer
Article
Chemistry, Physical
Jyah Strachan, Christopher Barnett, Anthony F. Masters, Thomas Maschmeyer
Article
Chemistry, Multidisciplinary
Alfonso R. Ballestas-Barrientos, Qingbo Xia, Anthony F. Masters, Chris D. Ling, Thomas Maschmeyer
Article
Chemistry, Physical
Alfonso Ballestas-Barrientos, Adrian T. Murdock, Hongwei Liu, Anthony Masters, Thomas Maschmeyer
JOURNAL OF CATALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Jyah Strachan, Christopher Barnett, Thomas Maschmeyer, Anthony F. Masters, Alice Motion, Alexander K. L. Yuen
JOURNAL OF CHEMICAL EDUCATION
(2020)
Article
Biotechnology & Applied Microbiology
Rui Zhang, Alexander K. L. Yuen, Rocky de Nys, Anthony F. Masters, Thomas Maschmeyer
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Review
Materials Science, Multidisciplinary
Jyah Strachan, Anthony F. Masters, Thomas Maschmeyer
Summary: Chevrel Phases, MxMo6S8, are a class of heterogenous catalysts with unique combination of low-coordinate molybdenum atoms, tuneable oxidation state, thermal stability, and dual Lewis acidity & basicity, making them excellent candidates for fundamental catalytic reactions. Recent developments in synthesis techniques have lessened historical constraints, but the catalytic community has been slow to adopt these advances. This review summarises five decades of catalytic reports, identifies trends and gaps within the literature, and provides perspective on future directions for the catalytic application of Chevrel Phases.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Education, Scientific Disciplines
Anthony Masters, Peta Greenfield, Cameron Davison, Janelle G. Evans, Alice Motion, Jennifer Barrett, Jakelin Fleur Troy, Kate Constantine, Lisa Rae Jackson Pulver
Summary: In this study, an Australian First Nations-first approach is chosen to understand the chemical elements, aiming to change the practice of chemistry by engaging with cultural heritage and knowledge. This approach acknowledges the unique position of Aboriginal and Torres Strait Islander peoples in the Australian context. The paper explores how this approach could be implemented in Sydney on Aboriginal lands, led by Aboriginal people and incorporating local knowledge. The work so far has involved two years of meetings and discussions to determine appropriate ways of collaboration, while reflecting on the impact of the Periodic Table and considering the contribution of Indigenous knowledges to a broader chemistry curriculum.
CHEMISTRY TEACHER INTERNATIONAL
(2023)
Review
Chemistry, Physical
Jyah Strachan, Anthony F. Masters, Thomas Maschmeyer
Summary: Molybdenum disulfide is a versatile material for various applications, but issues such as synthetic ambiguity and sample mischaracterizations are common in the literature on hydrothermally produced 1T-MoS2, leading to inconsistencies in understanding. Clarifying the literature is important for advancing the potential of this material.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Nanoscience & Nanotechnology
Jyah Strachan, Anthony F. Masters, Thomas Maschmeyer
Summary: Chevrel phases are a class of molybdenum chalcogenide materials with unprecedented nanostructures, making them suitable candidates for active non-noble metal catalysts. These nanostructured catalysts exhibit excellent performance in electrochemical testing, and can be easily modified through electrochemical intercalation, showcasing a family of versatile and tunable catalysts.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ellen B. Hemming, Anthony F. Masters, Thomas Maschmeyer
AUSTRALIAN JOURNAL OF CHEMISTRY
(2020)
