Angewandte Chemie International Edition

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A domino reaction is a series of chemical reactions where each reaction triggers the next reaction in the series, like falling dominoes (top). In a domino redox reaction, each reaction causes a structural change that triggers the next redox reaction in the series (bottom). (Takashi Harimoto, et al. Angewandte Chemie International Edition. November 28, 2023)
09 Jan 2024
Transmitting an effect known as a domino reaction using redox chemistry has been achieved for the first time.
12 Oct 2023
Researchers from the Institute of Industrial Science, The University of Tokyo, synthesize a two-center zinc complex that absorbs visible light as a solid and in solution.
Artistic depiction of a giant rotor molecule rotating in the solid state. (Rempei Ando, et al. Angewandte Chemie International Edition. August 31, 2023)
29 Sep 2023
Concave, umbrella-like metal complexes provide space to enable the largest molecular rotor operational in the solid-state.
Structure of macro-rotaxane synthesized in this study: multicyclic wheels (red) interlocked with several high-molecular-weight axles (blue). (Minami Ebe, et al. Angewandte Chemie International Edition. July 17, 2023)
02 Aug 2023
Molecules that act as connected wheels can hold long molecular chains together to modify the properties of soft polymers.
Microbial cultures used in the study to investigate the biosynthesis of actinopyradizone (Photo: Kenichi Matsuda).
11 Jul 2023
The entire biosynthetic pathway of actinopyridazone has been unveiled, revealing that an unprecedented carrier protein-mediated ring-forming step is key to its synthesis.
Combining dynamic covalent chemistry and coordination chemistry to synthesize new macrocyclic molecules
12 Jun 2023
Osaka Metropolitan University scientists synthesized a novel molecule by combining dynamic covalent reactions based on organic radicals and coordination reactions. They found that the two types of reactions do not inhibit each other. Their results suggest the possibility of synthesizing materials by combining different types of reactions, which is expected to lead to the construction of structures that have never existed before.
09 May 2023
Osaka Metropolitan University scientists elucidated the molecular structure of anionic Pt(0) complexes for the first time in collaboration with co-researchers at Paul Sabatier University - Toulouse III. The key to success is the stabilization of anionic Pt(0) complexes (which are usually unstable owing to their electron-donating nature) by the electron-accepting properties of boron compounds. The results of this research allow us to elucidate the properties and functions of highly active chemical species and provide new guidelines for their creation. The research is expected to lead to the development of innovative catalytic reactions mediated by these chemical species.
21 Feb 2023
Researchers at Kanazawa University report in Angewandte Chemie International Edition how the formation and deformation speed of interlocked molecular structures called rotaxanes can be tuned — a discovery that may lead to an enhanced functionality of rotaxanes as building blocks for molecular machines.
 Close up of the semi-automated synthesis robot used to generate training data (Photo: ICReDD).
03 Feb 2023
Researchers used a chemical synthesis robot and computationally cost effective A.I. model to successfully predict and validate highly selective catalysts.
Confounding color changing crystal!
13 Dec 2022
A research group at Osaka Metropolitan University has discovered that 2,5-distyrylpyrazine (DSP) crystals undergo a unique photoreaction. Normally, photoreactive color changes proceed uniformly throughout photomechanical molecular crystals, so that all parts of each crystal change color at the same time. However, when light shines evenly on a DSP crystal, the photoreaction propagates from edge to center, deviating from conventional photochemistry models. The group found that this phenomenon was caused by a surface effect and a cooperative effect, which make reactivity extremely high for molecules at the crystal’s edge and those adjacent to molecules that have already changed color.
16 May 2022
Researchers from the Osaka Metropolitan University Graduate School of Engineering have successfully developed a new technique allowing them to observe gas molecules packing into metal-organic frameworks (MOF) using infrared spectroscopy. Their innovation was to measure polarized light absorption of guest molecules in a MOF film to deduce molecule alignment using this common piece of lab equipment. This method is the first to show guest alignment and does so in real-time, while using an accessible and easily adoptable experimental setup. A short video (4 min) recreating their spectrometer modifications can be found in the Reference section.
01 Apr 2022
Soot as a surprising source of haze-building hydroxyl radicals
The newly developed catalyst in powder form (left) and under a transmission electron microscope (right)
27 Jul 2021
Adding lead and calcium to an industrial catalyst dramatically improves its ability to support propylene production at very high temperatures, making it stable and active for a month.
11 Jun 2021
A multi-institutional Japanese team has developed new magnetic design that has magic mirror-like properties. Based on organic-inorganic hybrid perovskite type compounds, the brightness of transmitted light changes depending on whether the material is viewed from the front or the back.
Ball-milling the mixture of polystyrene and pre-fluorescent radical reactants yielded luminescent polymers. Photos show the mixture before (left) and after (right) the reaction, under UV light.
11 Jun 2021
Hokkaido University researchers have developed a simple method that converts existing generic polymers into luminescent polymers using mechanical force.
18 Mar 2021
A design concept changes how materials separate gaseous mixtures.
01 Oct 2020
Scientists have found an ingredient that makes a vaccine more effective through an approach more often seen in materials science – testing molecules that self-assemble into larger structures.
01 Oct 2020
A Hokkaido University research group has successfully demonstrated that carbon-carbon (C-C) covalent bonds expand and contract flexibly in response to light and heat. This unexpected flexibility of C-C bonds could confer new properties to organic compounds.
13 Jul 2020
A hemispherical vanadium oxide cluster has a cavity that can accommodate a bromine molecule. It was found that a bromine molecule trapped in the cavity was polarized and that an alkane molecule like pentane, butane and propane could be brominated with the bromine molecule in the cavity with a selectivity differing from ordinary bromination. The present findings are expected to be useful for polarization of small molecules and design of highly functional catalysts.
10 Jun 2020
Metal-organic frameworks (MOFs) are sponge-like organic-inorganic hybrid materials and have a variety of uses due to their ultra-high “porosity,” or the ratio of pores or air pockets to the solid material. Through a technique called “post-synthetic modification,” Professor Jinhee Park and her research team were able to enhance and modify the function of these materials for specific purposes.
28 Feb 2020
Converting crystalline metal-organic frameworks into glass or liquid could give them unique properties and lead to the design of new materials.
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05 Dec 2014
Scientists in South Korea used the Zinc Finger protein to develop a new manufacturing technique for size-controllable magnetic Nanoparticle Clusters.

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