Rock trapping and exploration: Aziridinium bromide salts were discovered serendipitously during bromination of N,N-dicarboxymethylated beta-amino alcohols. Regiospecific ring-opening and rearrangement of the isolated, surprisingly stable aziridinium salts produces useful molecules including C-functionalized oxomorpholines and alpha,beta-unsaturated amines.
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http://dx.doi.org/10.1002/anie.200805244 | DOI Listing |
ACS Nano
February 2024
Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland.
The compositional engineering of lead-halide perovskite nanocrystals (NCs) via the A-site cation represents a lever to fine-tune their structural and electronic properties. However, the presently available chemical space remains minimal since, thus far, only three A-site cations have been reported to favor the formation of stable lead-halide perovskite NCs, i.e.
View Article and Find Full Text PDFChem Mater
November 2023
Faculty of Physics, Vilnius University, LT-10257 Vilnius, Lithuania.
Hybrid organic-inorganic lead halide perovskites are promising candidates for next-generation solar cells, light-emitting diodes, photodetectors, and lasers. The structural, dynamic, and phase-transition properties play a key role in the performance of these materials. In this work, we use a multitechnique experimental (thermal, X-ray diffraction, Raman scattering, dielectric, nonlinear optical) and theoretical (machine-learning force field) approach to map the phase diagrams and obtain information on molecular dynamics and mechanism of the structural phase transitions in novel 3D AZRPbX perovskites (AZR = aziridinium; X = Cl, Br, I).
View Article and Find Full Text PDFJ Mater Chem B
March 2023
The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
Nitrogen mustard (NM), a kind of alkylating agent similar to sulfur mustard, remains a threat to public health. However, there is nearly no satisfactory antidote for nitrogen mustard. Herein, we developed a supramolecular antidote to nitrogen mustard through efficient complexation of NM by carboxylatopillar[5]arene potassium salts (CP[5]AK).
View Article and Find Full Text PDFSci Total Environ
January 2023
Institute of Sustainable Chemistry, Leuphana University of Lüneburg, 21335 Lüneburg, Germany. Electronic address:
The present study assessed the ready biodegradability of the prodrug cyclophosphamide (CPA) and its stable human metabolites in the closed bottle test (CBT). The results of the CBT showed that only the main human metabolite, carboxyphosphamide (CXP), was biodegradable to a certain extent (23 ± 2.4 % ThOD).
View Article and Find Full Text PDFJ Am Chem Soc
March 2022
Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K.
Asymmetric catalytic azidation has increased in importance to access enantioenriched nitrogen containing molecules, but methods that employ inexpensive sodium azide remain scarce. This encouraged us to undertake a detailed study on the application of hydrogen bonding phase-transfer catalysis (HB-PTC) to enantioselective azidation with sodium azide. So far, this phase-transfer manifold has been applied exclusively to insoluble metal alkali fluorides for carbon-fluorine bond formation.
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