Article
Chemistry, Multidisciplinary
Masato Sakabe, Soichi Sato
Summary: The hexacoordinated antimony(V) dication has been successfully isolated and shown to exhibit remarkable thermal stability and magnetically inequivalent ppy ligands. X-ray crystallographic analysis confirmed its hexacoordination, while theoretical calculations investigated the preferential generation of the meridional form.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Hong-Lei Xu, Lei Qiao, Zhong-Ming Sun
Summary: Two isomers of [Ge-9-In-Ge-9](5-) sandwich-type anion were synthesized by controlling chelating agents. Reaction with Mo(CO)(6) and Ni(COD)(2) yielded two new types of inorganic sandwich derivatives: a half-sandwich cluster [Ge-9-In-Mo(CO)(5)](3-) and an unsymmetrical sandwich-type cluster {[(Ni@Ge-9)In(Ni-0.648@Ge-9)]}(5-). The isolation of these derivatives demonstrates the reactivity of [Ge-9-In-Ge-9](5-) sandwich-type anion, providing insight for constructing new inorganic sandwich compounds.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Electrochemistry
Jivan Thakare, Jahangir Masud
Summary: A novel low-temperature electrochemical extraction process has been demonstrated for efficient and environmentally-friendly extraction of rare earth elements (REEs) from lignite coal ash solutions. This technology is suitable for coal and coal byproducts.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Heigo Ers, Liis Siinor, Carolin Siimenson, Enn Lust, Piret Pikma
Summary: In this study, the adsorption behavior of organic molecules at the interface between a semi-metallic Sb(111) electrode and an ionic liquid was investigated. Two distinctive stacked adsorbed layers were identified, and their properties were studied using experimental methods and density functional theory calculations. These insights are of fundamental and practical importance in the development of nanoelectronic devices.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Rizwan Ashraf, Zohra Khalid, Ayesha Sarfraz, Haq Nawaz Bhatti, Muhammad Adnan Iqbal, Mansoureh Nazari
Summary: Four new selenium-N-Heterocyclic Carbene adducts were synthesized from molten salts and analyzed through various techniques to confirm their structure and stability. These compounds showed promising anticancer potential with high activity in vitro cytotoxicity studies, low toxicity in interaction with proteins and hemolysis assay.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Thermodynamics
Ping Wang, Bingyu Fan, Yiyang Zhou, Tian Cao, Pei Xu, Jin Liu, Ali Bahader, Xianbiao Wang, Yunsheng Ding
Summary: The study has shown that 1,2,3-triazolium-functionalized PCL-b-PEG(IL) has a significant impact on the crystallization behavior of PLA, enhancing chain segment mobility and crystallization ability, thereby inducing a high amount of stable alpha-form crystal of PLA after annealing treatment.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Multidisciplinary
Amir Al Ghatta, Xinyi Zhou, Giulia Casarano, James D. E. T. Wilton-Ely, Jason P. Hallett
Summary: Research has shown that processing biomass in ionic liquids can maximize the production of 5-hydroxymethylfurfural, but the low stability of HMF at high temperatures leads to the formation of humins through side reactions. By gaining a better understanding of humin formation and their potential application in metal extraction, humins show promise as effective adsorbents for water purification.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Maximilian Knies, Michael Ruck
Summary: Bi2S3 was dissolved in an ionic liquid [BMIm]Cl in the presence of NaCl, resulting in the formation of a complex crystal structure containing various structural units such as (Bi7S8)(5+) spiro-dicubanes and [S(AlCl3)(3)](2-) tetrahedra triples.
Article
Chemistry, Multidisciplinary
Michael Teixeira, Renata A. Maia, Lydia Karmazin, Benoit Louis, Stephane A. Baudron
Summary: The study investigates the use of a deep eutectic solvent for the ionothermal synthesis of Ca(ii) based metal-organic frameworks, successfully synthesizing a series of Ca-MOFs with different dicarboxylic acid ligands. The structural characterization and solvent coordination analysis of these materials were carried out, showing potential for the deep eutectic solvent to be an effective solvent for the synthesis of water-sensitive Ca-MOFs.
Article
Chemistry, Multidisciplinary
Janine Richter, Tobias Pietsch, Michael Ruck
Summary: Due to environmental concerns with current metal production processes, more energy-efficient methods are needed. Cobalt, extracted from ores and spent Li-ion batteries, is a strategic element. Ionometallurgy, using ionic liquids (ILs) to extract metal oxides, presents a promising approach. This research focuses on ionometallurgical processing of CoO, Co3O4, and LiCoO2 in the IL [Hbet][NTf2], providing insights into the dissolution process and optimizing the dissolution procedure to avoid IL decomposition. The importance of understanding complex equilibria is highlighted for successful cobalt electrodeposition.
Article
Chemistry, Multidisciplinary
Kalpana Chintakrinda, Nagaraju Narayanam, Guang-Hui Chen, Jian Zhang, Lei Zhang
Summary: Two titanium-oxo clusters with similar nuclearity but different surface-decorated ligands were synthesized using an ionothermal reaction. These clusters exhibited varying activities for photocatalytic degradation and distinct photocurrent responses, providing valuable insights into the design of Ti-oxo molecular clusters.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Lisa Wirtz, Andre Schafer
Summary: Metallocenes with interlinked cyclopentadienide ligands, also known as ansa-metallocenes or metallocenophanes, can have drastically different properties than their unbridged parent compounds. This concept is not limited to transition metals, but can also be applied to many main-group elements. This review focuses on recent advances in synthesis, structure, and properties of metallocenophanes based on group 2, group 13, group 14, and group 15 main-group elements.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Analytical
Jakub Karasinski, Andrii Tupys, Ludwik Halicz, Ewa Bulska
Summary: This study developed a new method for accurate and precise determination of the Ge isotope ratio in synthetic water and geological samples using MC-ICPMS with hydride generation. Liquid-liquid extraction of Ge and standard-sample bracketing method were used to eliminate interferences and correct instrumental bias. The method improved precision by choosing optimal signals and increased sensitivity by controlling pH with acetic buffer. The newly developed method demonstrated superior sensitivity and accuracy compared to other methods.
ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Physical
Zhenyu Zhang, Zirui Zhao, Binshen Wang, Jiaheng Zhang
Summary: Boron-based HILs with low viscosity have emerged as new potential fuels for bipropellant systems, and their derivatives can enhance hypergolicity as additives in HILs.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Chemistry, Physical
Maryam Mousapour, Narges Seyedi, Farhad Shirini
Summary: 1,4-bis(4-chlorobutyl)piperazine-1,4-diium hydrogen sulfate was successfully prepared on the Chitosan support, and various techniques were used to identify the obtained compound. The Chitosan structure and its hydrophilic properties make it an attractive support for immobilization, increasing the catalytic activity of the catalyst.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Matthias A. Grasser, Kati Finzel, Michael Ruck
Summary: In this study, a new copper antimony sulfide material Cu(Sb2S3)[AlCl4] was synthesized in an ionic liquid. The orthorhombic crystal structure was determined using X-ray diffraction, and the band gap was calculated through spectroscopy and calculations. Furthermore, the hydrolysis reaction of the material under different acid-base conditions was investigated, resulting in different products.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Chemistry, Multidisciplinary
Friedrich Schwotzer, Jacob Horak, Irena Senkovska, Elke Schade, Tatiana E. Gorelik, Philipp Wollmann, Mai Le Anh, Michael Ruck, Ute Kaiser, Inez M. Weidinger, Stefan Kaskel
Summary: Clean air is crucial for human health, and the development of advanced materials for capturing toxic molecules is necessary. This study focuses on a metal-organic framework material that can be assembled into hierarchical structures, leading to enhanced adsorption capacity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Maria A. Herz, Kati Finzel, Michael Ruck
Summary: Through the combination of thermal and phase analyses of isothermal ex situ syntheses, a complex high-temperature synthesis protocol was established for the crystal growth of a target phase. This investigation also resulted in the discovery of a new subiodide with a complex structure and unique physical properties.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Chemistry, Inorganic & Nuclear
Ralf Albrecht, Michael Ruck
Summary: Dark octahedral crystals of K1-x[Fe1-xSixO2] were synthesized under ultra-alkaline conditions. The crystal structure is a stuffed cristobalite with a charged framework of vertex-sharing tetrahedra. The crystal adopts a tetragonal space group and the tetrahedra are distorted.
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuxi Li, Peter A. Hegarty, Michael Ruesing, Lukas M. Eng, Michael Ruck
Summary: Pure and stable Ba(BO2OH) crystals were synthesized using Ba(NO3)(2) and H3BO3 under ultra-alkaline conditions. The crystals have a non-centrosymmetric orthorhombic structure, and hydrogen bonding connects the (BO2OH)(2-) anions into chains. Heating the crystals results in dehydration and transformation to Ba2B2O5. The non-centrosymmetric structure of Ba(BO2OH) was confirmed using confocal Second Harmonic Generation microscopy.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Chemistry, Multidisciplinary
Peng Chen, Xiaohan Sun, Tobias Pietsch, Bernd Plietker, Eike Brunner, Michael Ruck
Summary: The commercialization of zinc batteries and capacitors is hindered by the growth of dendrites, limited coulombic efficiency (CE), and the lack of high-voltage electrolytes. These issues are addressed by a new electrolyte based on the zinc(II)-betaine complex [Zn(bet)(2)][NTf2](2). Solutions in acetonitrile (AN) prevent dendrite formation. The zinc-based batteries and capacitors show excellent performance and stability.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Falk Pabst, Sabrina Palazzese, Felix Seewald, Shingo Yamamoto, Denis Gorbunov, Sumanta Chattopadhyay, Thomas Herrmannsdoerfer, Clemens Ritter, Kati Finzel, Thomas Doert, Hans-Henning Klauss, Jochen Wosnitza, Michael Ruck
Summary: This paper reports the synthesis, crystal growth, structure, and complex magnetic properties of a new compound Pr3Fe3Sb7. It is found that Pr3Fe3Sb7 shows spontaneous magnetization and exhibits noncollinear ferromagnetic order below 380K. The compound also exhibits a spin-reorientation transition and antiparallel magnetization behavior. Finally, the compound shows metallic resistivity along the c axis, with a small anomaly observed.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Soha Yousuf, Jad Mahmoud Halabi, Ibrahim Tahir, Ejaz Ahmed, Rachid Rezgui, Liang Li, Praveen Laws, Mohammed Daqaq, Pance Naumov
Summary: In this study, a flexible, thin and optically transmissive organic crystal with a high aspect ratio was used as an active flow sensor. The crystal, stamped with fluorescent dye, bends when exposed to gas flow and laser, acting as an optical flow (hair) sensor with low detection limit (approximately 1.578 m s(-1)) and fast response time (approximately 2.70 s). Finite element analysis was used to model the air-flow-induced crystal deformation and flow dynamics response. This prototype crystal hair-like sensor, with its simple design, lightweight and mechanical robustness, opens up possibilities for a new class of sensing devices ranging from wearable electronics to aeronautics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Electrochemistry
Peng Chen, Michael Ruck
Summary: A binder-free aluminum electrode with strong adhesion and structural stability was fabricated on a three-dimensional copper foam or carbon fabric. The electrode showed high electrical conductivity and effectively alleviated large volume change. In a lithium-ion battery, the Al/Cu-3D electrode exhibited stable and reversible reactions, delivering a high discharge capacity and maintaining good interfacial stability. The concept of porous 3D electrodes with alloying-type anodes holds promise for battery applications.
Article
Chemistry, Multidisciplinary
Sameera Shah, Tobias Pietsch, Maria Annette Herz, Franziska Jach, Michael Ruck
Summary: Rare-earth metal sesquioxides (RE2O3) are stable compounds that require high activation energies or strong acids for dissolution. However, these compounds can be dissolved and processed with anhydrous ionic liquid [BMIm][OAc]. The dissolution is promoted by chloride ions and results in the formation of homoleptic dinuclear metal complexes. Photoluminescence and paramagnetism are observed in the complex salts of Sm and Eu.
CHEMISTRY-SWITZERLAND
(2023)
Article
Chemistry, Multidisciplinary
Anton V. Savchenkov, Ejaz Ahmed, Durga Prasad Karothu, Pance Naumov
Summary: The study found no definite correlation between noncovalent interactions in crystals and their elastic or plastic properties. All studied crystals contained numerous hydrogen bonds, contributing to a significant portion (ranging from 10% to 75%, with an average of approximately 42%) of the overall noncovalent interactions. Several outliers were identified, which were attributed to unusual noncovalent contacts or erroneous crystal structures.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Inorganic & Nuclear
Matthias Smuda, Jonas Stroeh, Nicole Pienack, Azat Khadiev, Huayna Terraschke, Michael Ruck, Thomas Doert
Summary: The synthesis of intermetallic phases formed from elements with different melting points is time-consuming. The reduction of metal salts in the polyol process offers a facile synthesis approach. However, the mechanism behind the polyol process has received little attention. Understanding the underlying mechanisms would enable better synthesis planning and product design.
DALTON TRANSACTIONS
(2022)
Article
Crystallography
Ralf Albrecht, Thomas Doert, Michael Ruck
Summary: Crystal structure data for potassium orthoselenate (IV) are reported for the first time. The crystals are colorless and block-shaped, grown in a potassium hydroflux. The structure of K2SeO3 is similar to Na2SO3 and K2TeO3, with potassium cations exhibiting a coordination number of six and nine.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Joachim Breternitz, Susan Schorr
Summary: Zinc-containing ternary nitrides have great potential as light-absorbing materials, and the incorporation of oxygen affects their crystal structure and optical band gaps. This study explores the origins of structural changes and investigates the electronic structure and bonding.
FARADAY DISCUSSIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Franziska Jach, Theresa Block, Yurii Prots, Marcus Schmidt, Matej Bobnar, Rainer Poettgen, Michael Ruck, Peter Hoehn
Summary: This study reports the stabilization of the electron-rich tetracyanidoferrate(-ii) anion [Fe(CN)(4)](6-), which exhibits a negative oxidation state. Microcrystalline powders were synthesized using a solid-state route, and single crystals were obtained from Na metal flux. Compared to classical cyanidometalates, the [Fe(CN)(4)](6-) ion has longer C-N distances and lower stretching frequencies. Fe-57 Mossbauer spectroscopy measurements show a negative isomer shift, indicating significant delocalization of d electrons. These findings provide important insights into the chemical bonding trends of highly-reduced cyanidometalates.
DALTON TRANSACTIONS
(2022)
