Article
Chemistry, Multidisciplinary
Maximilian Benz, Thomas M. Klapoetke, Tobias Lenz, Joerg Stierstorfer
Summary: This study investigates the sensitivities and properties of derivatives of 5-azido and 5-nitraminotetrazole compounds through functionalization with different groups. Extensive characterizations and tests were conducted on the obtained products.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Organic
Maximilian Benz, Michael S. Gruhne, Thomas M. Klapoetke, Nina Krueger, Tobias Lenz, Marcus Lommel, Joerg Stierstorfer
Summary: Starting from sodium 5-aminotetrazolate, two isomers were synthesized by substitution reaction, and azidoethyl and nitratoethyl substituted azotetrazoles were obtained by oxidative azo coupling. The compounds were analyzed using NMR, IR spectroscopy, mass spectrometry, X-ray crystallography, CHNO elemental analysis, and energetic properties were calculated using the EXPLO5 code.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Maximilian Benz, Thomas M. Klapoetke, Joerg Stierstorfer
Summary: In this study, a compound that combines both azide and nitrimino substituents directly attached to a tetrazole scaffold was successfully synthesized. The synthesis process and the properties of the compound were thoroughly analyzed and characterized. The sensitivity and detonation parameters of the compound were calculated and measured.
Article
Chemistry, Physical
Maximilian Benz, Thomas M. Klapoetke, Joerg Stierstorfer, Michael Voggenreiter
Summary: 1-Amino-5-nitriminotetrazole has been synthesized for the first time via acid-catalyzed protection and aprotic nitration, and its salts have been synthesized by addition of corresponding bases. Most of the nitrogen-rich salts exhibit insane explosive properties, competing with the most powerful non-nuclear explosives. The introduction of a fused triazolium cation results in a promising secondary explosive with high performance, low sensitivity, and high thermal stability. Metal salts (K and Ag) are successfully used to initiate pentaerythritol tetranitrate using a classical detonator setup.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Marco Reichel, Maximilian H. H. Wurzenberger, Marcus Lommel, Moritz Kofen, Burkhard Krumm, Joerg Stierstorfer, Konstantin Karaghiosoff
Summary: In this study, the reactions of fluoroiodomethane with the sodium salts of 5H-tetrazole and 5-aminotetrazole were conducted to synthesize new tetrazoles, which were characterized using spectroscopic and analytical methods. The thermal behavior of the tetrazoles with a FCH2 moiety attached was compared to their CH3 analogs, and detonation parameters were calculated. Attempts were made to prepare energetic copper complexes of the new ligands, and the crystal structures and energetic properties of copper complexes of copper(II) perchlorate and chlorate were discussed.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2021)
Article
Chemistry, Organic
Wen-Hao Cui, Qi Liu, Zhiwen Ye, Ying He
Summary: A series of bistetrazole-based energetic salts with a nitrogen-rich fused ring were designed and synthesized. Compounds 4-10 exhibited good detonation properties and excellent thermostability. By treating nitrogen-rich fused ring 3 with concentrated hydrochloric acid, a new type of Dimroth rearrangement was observed, leading to the efficient formation of compound 12. This new transformation represents a valuable addition to the Dimroth rearrangement.
Article
Chemistry, Organic
Jatinder Singh, Richard J. J. Staples, Jeanne M. Shreeve
Summary: A strategy for synthesizing nitrogen-rich energetic materials with good properties is reported, taking advantage of the synergetic effects of inter- or intramolecular hydrogen bonds. A new thermostable and insensitive material, 1,2-dihydrazono-1,2-di(1H-tetrazol-5-5-yl)ethane, was obtained from the reaction of dioxime with hydrazinehydrate. The material has reduced acidity, low solubility in water, high nitrogen content (76%), high thermal stability (275°C), and insensitivity to external stimuli.
Article
Chemistry, Applied
Thomas M. Klapoetke, Burkhard Krumm, Christian Riedelsheimer
Summary: The crystal structure of pentanitroaniline (PNA) is reported for the first time, providing insights into the crystal packing and nitro group positioning. NMR, IR spectroscopy, and TGA were used to characterize the compound, while a Hirshfeld analysis determined the distances and interactions of outer atoms. The compound's energetic parameters were calculated and compared to other compounds for performance evaluation.
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2022)
Article
Chemistry, Multidisciplinary
Thomas M. Klaepotke, Burkhard Krumm, Jasmin T. Lechner, Christian Riedelsheimer
Summary: The nitrocarbamate derivative of DINA was synthesized and characterized using various analysis methods. The sensitivities and energetic properties of these compounds were also measured.
Article
Materials Science, Multidisciplinary
Nihan Chen, Chunlin He, Siping Pang
Summary: Additive manufacturing (AM), or 3D printing, allows for fast and accurate fabrication of energetic materials with complex structures. Different AM techniques can create high-energy materials with controllable nanostructures and uniformly dispersed ingredients, while retaining their combustion and mechanical properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Thomas M. Klapoetke, Moritz Kofen, Laszlo Schmidt, Jorg Stierstorfer, Maximilian H. H. Wurzenberger
Summary: In this study, a novel synthesis method for 1-hydroxy-5H-tetrazole and its primary and secondary explosives containing the oxotetrazolate unit was reported. The molecular structures and detonation properties were characterized experimentally, showing that the explosive properties can be adjusted by forming different salts. Sensitivities towards external stimuli of these compounds were also measured.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Alessia Motta, Gabriele Seguini, Michele Perego, Roberto Consonni, Antonella Caterina Boccia, Gina Ambrosio, Camilla Baratto, Pierfrancesco Cerruti, Marino Lavorgna, Stefano Tagliabue, Claudia Wiemer
Summary: The introduction of inorganic materials into biopolymers is considered a feasible method to modify their properties. This study investigated the growth of Al2O3 in freestanding PBS films and demonstrated its homogeneous distribution. Infiltrated PBS films showed a reduction in the signal related to the ester carbonyl group. Additionally, the study found that the mass uptake of Al2O3 in PBS films was higher than in PMMA films.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Klaudia Pawlus, Tomasz Jarosz, Agnieszka Stolarczyk
Summary: This paper analyzes the limited progress in the practical application of coordination energetic materials and presents suggestions for future research and development efforts.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Yu-Chieh Huang, Ashit Rao, Shing-Jong Huang, Chun-Yu Chang, Markus Drechsler, Jennifer Knaus, Jerry Chun Chung Chan, Paolo Raiteri, Julian D. Gale, Denis Gebauer
Summary: Through quantitative analysis and spectroscopy, it has been confirmed that HCO3- ions play essential roles in competition for ion association and as structural components in the mineralization process of CaCO3.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Jonas Rein, Jonathan M. Meinhardt, Julie L. Hofstra L. Wahlman, Matthew S. Sigman, Song Lin
Summary: In this study, a multivariate linear regression model was used to predict the decomposition temperature and impact sensitivity of structurally diverse tetrazoles and organic azides, providing important references for the safe and effective application of these compounds. The statistical models have high predictive accuracy and chemical interpretability, which were validated by tetrazole test sets generated exclusively in silico. Mechanistic analysis of the statistical models revealed distinct divergent pathways of thermal and impact-initiated decomposition.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Stephan Benedikt, Jieping Wang, Marica Markovic, Norbert Moszner, Kurt Dietliker, Aleksandr Ovsianikov, Hansjoerg Gruetzmacher, Robert Liska
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2016)
Article
Nanoscience & Nanotechnology
Marco Sangermano, Monica Periolatto, Micaela Castellino, Jieping Wang, Kurt Dietliker, Joelle Levalois Grutzmacher, Hansjorg Grutzmacher
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Multidisciplinary
Jieping Wang, Gilberto Siqueira, Georgina Mueller, Daniel Rentsch, Anja Huch, Philippe Tingaut, Joelle Levalois-Gruetzmacher, Hansjorg Gruetzmacher
CHEMICAL COMMUNICATIONS
(2016)
Article
Polymer Science
Melahat Sahin, Sandra Schloegl, Simon Kaiser, Wolfgang Kern, Jieping Wang, Hansjorg Grutzmacher
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Jieping Wang, Annalisa Chiappone, Ignazio Roppolo, Feng Shao, Erika Fantino, Massimo Lorusso, Daniel Rentsch, Kurt Dietliker, Candido Fabrizio Pirri, Hansjorg Gruetzmacher
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
Chemistry, Multidisciplinary
Jieping Wang, Sascha Stanic, Altan Alpay Altun, Martin Schwentenwein, Kurt Dietliker, Lu Jin, Juergen Stampfl, Stefan Baudis, Robert Liska, Hansjoerg Gruetzmacher
CHEMICAL COMMUNICATIONS
(2018)
Article
Polymer Science
Melahat Sahin, Krzysztof K. Krawczyk, Piotr Roszkowski, Jieping Wang, Baris Kaynak, Wolfgang Kern, Sandra Schloegl, Hansjorg Grutzmacher
EUROPEAN POLYMER JOURNAL
(2018)
Article
Polymer Science
Melahat Sahin, Sandra Schloegl, Gerhard Kalinka, Jieping Wang, Baris Kaynak, Inge Muehlbacher, Wolfgang Ziegler, Wolfgang Kern, Hansjorg Grutzmacher
Article
Materials Science, Multidisciplinary
Giulia Panusa, Ye Pu, Jieping Wang, Christophe Moser, Demetri Psaltis
OPTICAL MATERIALS EXPRESS
(2019)
Article
Chemistry, Multidisciplinary
Leibing Wang, Jieping Wang, Sitao Ye, Beihan Jiang, Zihao Guo, Yasir Mumtaz, Wenbin Yi
Summary: A general and efficient synthesis of N-CF3 secondary amines has been reported, using in situ generated difluoromethyl imine intermediates and hydrogen fluoride produced by triethylsilane and silver fluoride. This method provides a new route for the synthesis of N-CF3 compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Haonan Xiang, Jieping Wang, Zihao Guo, Yucong Chen, Beihan Jiang, Sitao Ye, Wenbin Yi
Summary: Polythioamides have been successfully synthesized using diboronic acids, secondary diamines, and thiocarbonyl fluoride as the central connective hub. These polythioamides exhibit inherent selectivity in coordinating metal ions, resulting in the formation of PdII-crosslinked single-chain nanoparticles that can serve as recyclable homogeneous catalysts. This study highlights the potential of thiocarbonyl fluoride as a powerful hub for addressing the challenging synthesis of sulfur-containing polymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Anna Eibel, David E. Fast, Juergen Sattelkow, Michal Zalibera, Jieping Wang, Alex Huber, Georgina Mueller, Dmytro Neshchadin, Kurt Dietliker, Harald Plank, Hansjorg Grutzmacher, Georg Gescheidt
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2017)
