Angewandte Chemie最新文献

Amphiphilic bottlebrush block copolymers with hydrophobic brush segments self-assemble into nanodiscs in water. Their size, pH-responsiveness, and drug loading capacity can be controlled. Different hydrolysis rates enable time-dependent degradation and drug release. In their Communication (e202424269), Markus MÃ1/4llner et al. show how the functional nanodisc core can switch from hydrophobic to hydrophilic, allowing loaded cargo to be released.

Macrocycles like the ones depicted in the rod-and-ball representation shown in the picture can enable powerful drugs but their exploration has been difficult. The build--pair--couple strategy reported by Felix Hausch et al. in their Research Article (e202418512) allows the rapid assembly of diversely decorated macrocycles, especially in the linker part (highlighted in orange).

Bifunctional complex design can enable selective activation of the strong C=O bonds in CO2. Much like a fiddler crab, the {Fe-H/Cp*-BCy2} complex employed by Marcus W. Drover and co-workers in their Research Article (e202421599), features two distinct "claws". This study highlights that cooperativity between the iron hydride and pendant Lewis acidic borane is integral to facilitate the reduction of CO2 to a C1 product.

N2 has long been considered as a stable reservoir in the atmosphere. However, in their Communication (e202421002), Deming Xia, Jingwen Chen, Joseph S. Francisco et al. proposed a novel reduction-then-oxidation pathway, through which N2 can be rapidly converted to N2O by O2 and O3 on water droplet surfaces.

An increasing need for the miniaturization of optoelectronic devices or machines has become evident as we are entering the post-Moore era. One bold conceit is that chemically synthesized nanoparticles (NP) can function as nanodevices or nanomachines. In their Research Article (e202420931), Zhikun Wu, Jun Yang, Nan Xia et al. demonstrate the feasibility by reporting a novel nanocluster with multileveled capacitor-like character, which is identified by a Cd(II) transport from the outershell to the innermost position after charged with NaBH4, as well as some other ways such as NPA charge distribution, voltammetry and electrocatalytic reduction of CO2 to CO. An intra-NP anti-galvanic reduction was found after the migrating of charge carrier.

In their Communication (e202418228), Hao Li and co-workers reveal an exciting contrast: the electric field response of the binding strength of *OCHO on Sn-N4-C and polyatomic Sn displays opposite behaviors. This response results in a fascinating, opposite pH-dependent volcano evolution for Sn-N4-C and polyatomic Sn. Most importantly, we propose that distinct strategies are necessary for designing catalysts using single-atom versus polyatomic metal catalysts.

A strategy for the biomimetic synthesis of polyhydroxyalkanoates (PHA) using C4 diol and air, catalyzed by a synergistic catalyst, was presented by Qiuquan Cai and co-workers in their Research Article (e202417660). The resulting PHA can reversibly convert back to a small-molecule monomer in the form of a five-membered ring, demonstrating excellent ecological sustainability. This study highlights the potential for large-scale synthesis of high-value PHAs from diverse non-grain-based diols.

The main bottleneck of rechargeable aqueous zinc batteries (AZBs) is their limited cycle lifespans stemming from the unhealthy electrolyte bulk and fragile interface. In their Research Article (e202418524), Jun Huang, Yiwang Chen et al. report a dynamic protective strategy to bridge electrolyte bulk and interfacial chemistry for ultra-long lifespan AZBs, which greatly unlocks the potential for an extended service lifespan for advanced AZBs.

Non-stoichiometric cocrystals of hydrogen-bonded organic framework were constructed from two tetracarboxylic acids, possessing naphthalene and benzothiadiazole cores. The single crystals showed versatile fluorescence, including not only homogeneous color such as purple, blue, green and white, but also heterogeneous bicolor such as blue-green and green-yellow depending on the component ratios and distributions. In their Research Article (e202419992), Ichiro Hisaki, Abderrazzak Douhal and co-workers revealed the relationship between crystal structures and fluorescent properties of single crystals.

Polymers with intrinsic microporosity have been pioneered by Huaqiang Zeng et al. in their Research Article (e202418304) as a compelling platform for constructing artificial lithium ion channels. These Li⁺ channels achieve exceptionally high Li⁺ transport rates coupled with exceptional selectivity. Remarkably, their transport properties can be precisely tuned by adjusting the synthesis temperature, presenting a versatile strategy for optimizing performance.