π-Extended benzo[1,2:4,5]di[7]annulene bis(dicarboximide)s – a new class of non-alternant polycyclic aromatic dicarboximides

Chem. Sci., 2023, 14,10861-10866
DOI: 10.1039/D3SC04015A, Edge Article
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Jonas Spengler, Chongwei Zhu, Kazutaka Shoyama, Frank Würthner
A series of non-alternant aromatic dicarboximides was synthesized by manipulating the perylene bisimide framework through the introduction of heptagonal rings, which strongly alter their optoelectronic properties.
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A cell-active cyclic peptide targeting the Nrf2/Keap1 protein–protein interaction

Chem. Sci., 2023, 14,10800-10805
DOI: 10.1039/D3SC04083F, Edge Article
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Jessica Iegre, Sona Krajcovicova, Anders Gunnarsson, Lisa Wissler, Helena Käck, Anna Luchniak, Stefan Tångefjord, Frank Narjes, David R. Spring
Application of DVP stapling methodology to efficiently develop Nrf2 peptides with nM activity in enzymatic assays, submicromolar activity in cells and non-cytotoxicity, characterised by high resolution X-ray co-crystallography.
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High and fast: NMR protein–proton side-chain assignments at 160 kHz and 1.2 GHz

Chem. Sci., 2023, 14,10824-10834
DOI: 10.1039/D3SC03539E, Edge Article
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Morgane Callon, Dominique Luder, Alexander A. Malär, Thomas Wiegand, Václav Římal, Lauriane Lecoq, Anja Böckmann, Ago Samoson, Beat H. Meier
The combination of the fastest MAS and highest magnetic field allows to spectrally resolve the side-chain protons of proteins. It makes 1H-detected MAS NMR a key player in the study of protein interactions with other macromolecules or nucleic acids.
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Rare-earth hydroxide/MXene hybrid: a promising agent for near-infrared photothermy and magnetic resonance imaging

Chem. Sci., 2023, 14,10795-10799
DOI: 10.1039/D3SC02604C, Edge Article
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Mingjun Bai, Linawati Sutrisno, Junhong Duan, Hao Wan, Gen Chen, Xiaohe Liu, Renzhi Ma
A layered gadolinium hydroxide/Ti3C2 (GTC) hybrid exhibited enhanced near-infrared (NIR) light absorption properties, excellent photothermal performance and a T1-weighted magnetic resonance imaging (MRI) effect.
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Chemodivergence in Pd-catalyzed desymmetrization of allenes: enantioselective [4+3] cycloaddition, desymmetric allenylic substitution and enynylation

Chem. Sci., 2023, 14,10812-10823
DOI: 10.1039/D3SC04581A, Edge Article
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Pengfei Luo, Long Li, Xinfang Mao, Zheng Sun, Yingcheng Wang, Fangzhi Peng, Zhihui Shao
Pd-catalyzed enantioselective allenylic [4+3] cycloaddition, desymmetric allenylic substitution or tandem desymmetric allenylic substitution/β-vinylic hydrogen elimination (formal enynylation) can be realized chemodivergently by ligand control.
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A tunable family of CAAC-ruthenium olefin metathesis catalysts modularly derived from a large-scale produced ibuprofen intermediate

Chem. Sci., 2023, 14,10744-10755
DOI: 10.1039/D3SC03849A, Edge Article
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Adrian Sytniczuk, Filip Struzik, Karol Grela, Anna Kajetanowicz
A tunable family of ibuprofen intermediate-derived CAAC-base complexes for different applications, dependent from the size of the N-aryl substituent.
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Ru(II)/Os(II)-based carbonic anhydrase inhibitors as photodynamic therapy photosensitizers for the treatment of hypoxic tumours

Chem. Sci., 2023, Advance Article
DOI: 10.1039/D3SC03932C, Edge Article
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Youchao Wang, Pierre Mesdom, Kallol Purkait, Bruno Saubaméa, Pierre Burckel, Philippe Arnoux, Céline Frochot, Kevin Cariou, Thibaud Rossel, Gilles Gasser
Novel sulfonamide-based monopodal and dipodal ruthenium and osmium polypyridyl complexes capable of targeting carbonic anhydrases are a major target in cancer therapy are described as new photosensitizers for photodynamic therapy.
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PDI–trityl dyads as photogenerated molecular spin qubit candidates

Chem. Sci., 2023, 14,10727-10735
DOI: 10.1039/D3SC04375D, Edge Article
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Maximilian Mayländer, Kevin Kopp, Oliver Nolden, Michael Franz, Philipp Thielert, Andreas Vargas Jentzsch, Peter Gilch, Olav Schiemann, Sabine Richert
Quartet states, generated after photoexcitation of chromophore–radical dyads, are promising for applications in quantum sensing. We demonstrate the potential of trityl radicals for improving their coherence properties and spectral addressability.
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Ligand entry pathways control the chemical space recognized by GPR183

Chem. Sci., 2023, 14,10671-10683
DOI: 10.1039/D2SC05962B, Edge Article
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Viktoria Madeline Skovgaard Kjær, Tomasz Maciej Stępniewski, Brian Medel-Lacruz, Lisa Reinmuth, Marija Ciba, Elisabeth Rexen Ulven, Massimiliano Bonomi, Jana Selent, Mette Marie Rosenkilde
The G protein-coupled receptor GPR183 utilizes two ligand entry channels: one lateral between transmembrane helices 4 and 5 facing the membrane, and one facing the extracellular environment to recognize chemically diverse ligands.
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Structural distortion by alkali metal cations modulates the redox and electronic properties of Ce3+ imidophosphorane complexes

Chem. Sci., 2023, Advance Article
DOI: 10.1039/D3SC04262F, Edge Article
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Andrew C. Boggiano, Chad M. Studvick, Alexander Steiner, John Bacsa, Ivan A. Popov, Henry S. La Pierre
Structural distortion of the secondary coordination sphere driven by the incorporation of an alkali metal in Ce3+ imidophosphorane complexes tunes the Ce3+/4+ oxidation potential.
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