Diffraction data for a new uranyl-containing metal–organic framework reveals a structure of interpenetrating 3D nets with large pores. The material is stable in aqueous media and due to the large void space (constituting 76% of the unit cell by volume) can sequester organic dyes, the uptake of which induces a visible change to the color of the material. Read more »
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Design and synthesis of high performance flexible and green supercapacitors made of manganese‐dioxide‐decorated alkali lignin
Researchers synthesized a plant‐based composite electrode for use in flexible supercapacitors and used synchrotron x‐ray microtomography to better understand the impact of microstructure and morphology on electrode porosity and electrical conductance. Read more »
Magneto-structural studies of an unusual [MnIIIMnIIGdIII(OR)4]4− partial cubane from 2,2′-bis-p–tBu-calix[4]arene
TBC[4] is a molecular framework that has proven to be a highly versatile ligand for the synthesis of a breadth of polymetallic transition metal, lanthanide metal, and 3d–4f complexes. We outline the synthesis, structure and magnetic behaviour of a new bis-TBC[4]-supported complex, together with theoretical magneto-structural studies examining the exchange interactions. Read more »
Controlling Magnetization Vector Depth Profiles of La0.7Sr0.3CoO3/La0.7Sr0.3MnO3 Exchange Spring Bilayers via Interface Reconstruction
Polarized neutron reflectometry was combined with soft x-ray magnetic spectroscopy to quantify the changes in the magnetic and chemical depth profiles in La0.7Sr0.3CoO3/La0.7Sr0.3MnO3 bilayers, confirming the formation of interfacial layers with distinct magnetization and chemical density. Read more »
Reversible Room-Temperature Fluoride-Ion Insertion in a Tunnel-Structured Transition Metal Oxide Host
Fluoride ions show promise as charge carriers in batteries but have limited cyclability. Here we show the reversible and homogeneous topochemical insertion/deinsertion and bulk diffusion of F ions within the one-dimensional tunnels of submicrometer-sized FeSb2O4 particles at room temperature. Read more »
Thermoinduced Crystallization-Driven Self-Assembly of Bioinspired Block Copolymers in Aqueous Solution
Thermoinduced crystallization-driven self-assembly of polypeptoid-based block copolymers results in delicate control over the nanostructure in aqueous solution. This provides a convenient platform for comparing cellular uptake efficiency of nanostructured assemblies with various morphologies that are otherwise similar. Read more »
Structural Features Mediating Zinc Binding and Transfer in the AztABCD Zinc Transporter System
Zinc homeostasis is critical for bacterial survival and virulence. Extracellular zinc-binding proteins play an important role in this process. This work assesses the role of several flexible or unstructured sequences in zinc binding and transfer from proteins AztD to AztC. The results provide insights into the dynamic nature of these processes and support a previously proposed structural model of transfer. Read more »
Time‐Dependent Cytotoxic Properties of Terpyridine‐Based Copper Complexes
The cover feature picture shows the progressive activation of terpyridine‐based copper(II) compounds that are not cytotoxic against various cell lines after 24 h of incubation but become highly efficient after 72 h of incubation, with IC50 values in the low‐micromolar to nanomolar range. Read more »
Energetics and Energy Loss in 2D Ruddlesden–Popper Perovskite Solar Cells
Qinye Bao and co‐workers systematically investigate the energetics and energy loss in 2D Ruddlesden‐Popper perovskite (RPP) solar cells. The crucial scenario found at the 2D RPP/electron transport layer interface is that the potential gradient across ligands promotes separation of the photogenerated carrier, with electrons transferring from the perovskite crystal to the electron transport layer. Read more »
Controlling antiferromagnetic domains in patterned La0.7Sr0.3FeO3 thin films
Antiferromagnetic spintronics have gained interest because they can be controlled at terahertz frequencies and are insensitive to external magnetic fields. Due to dimensional confinement as well as microstructuring by ion implantation, the spin axis of an antiferromagnetic oxide can be robustly controlled in a deterministic way up to room temperature. Read more »
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