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15 Nov 2024 • Journal Article • Chemical Science
Chemical Protein Synthesis Combined with Protein Cell Delivery Reveals New Insights on the Maturation Process of SUMO2
AbstractThe Small Ubiquitin-like Modifier (SUMO) is a crucial post-translational modifier of proteins, playing a key role in various cellular functions. All SUMOs are synthesized as precursor proteins that must be proteolytically processed. However, the maturation process of cleaving the extending C-terminal tail, preceding SUMOylation of substrates, remains poorly understood
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14 Nov 2024 • Journal Article • Chemistry – A European Journal
Triscyanocorrole, the Newest and Most Intriguing Member of the C1-Substituted Corrole Family
AbstractConsidering the potential advantages of minimally sized corroles for diverse applications, this study reports a facile access to cyano-substituted derivatives via a rare CF3/CN conversion. Investigation of the fully characterized gallium, phosphorus, and cobalt complexes discloses multiple effects of the meso-nitrile groups attached to the macrocycle. This corrole
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13 Nov 2024 • Journal Article • The Journal of Physical Chemistry Letters
Intrinsic Rashba Effect in Stable Configurations of Two-Dimensional (PEA)2PbI4
AbstractHalide perovskites (HPs) are crystalline solids that feature a unique softness, absent in conventional semiconducting materials. In recent years, this softness has been pivotal to many properties in these materials, in both static and dynamic regimes. Here, we focus on the two-dimensional (2D) (PEA)2PbI4 crystal. We employ extensive density functional theory calculations
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12 Nov 2024 • Journal Article • ACS Nano
Identifying Band Structure Changes of FePS3 across the Antiferromagnetic Phase Transition
AbstractMagnetic 2D materials enable interesting tuning options of magnetism. As an example, the van der Waals material FePS3, a zig-zag-type intralayer antiferromagnet, exhibits very strong magnetoelastic coupling due to the different bond lengths along different ferromagnetic and antiferromagnetic coupling directions enabling elastic tuning of magnetic properties. The likely
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7 Nov 2024 • Journal Article • Physical Review Research
Constraining P and T violating forces with chiral molecules
AbstractNew sources of parity and time-reversal violation are predicted by well motivated extensions of the Standard Model and can be effectively probed by precision spectroscopy of atoms and molecules. Chiral molecules have distinguished enantiomers which are related by parity transformation. Thus they are promising candidates to search for parity violation at molecular scales
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7 Nov 2024 • Preprint • arXiv
Nonlinear Broadband THz Generation from NV Centers in Bulk Diamond Crystals
AbstractDiamond single crystals could be an attractive nonlinear THz source due to the materials high damage threshold, high transparency and THz-NIR phase matching ability. However, the buildup of second order nonlinear fields is restricted due to the centrosymmetric structure of the crystal. Here, we demonstrate nonlinear broadband THz emission due to optical rectification
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7 Nov 2024 • Journal Article • Angewandte Chemie International Edition
Rhodium-Catalyzed Asymmetric Cyclopropanation of Indoles with N-Triftosylhydrazones
AbstractHerein we report a general rhodium-catalyzed asymmetric intermolecular dearomative cyclopropanation of indoles using trifluoromethyl N-triftosylhydrazones as carbene precursors. The reaction enables the rapid construction of diverse cyclopropane-fused indolines bearing a trifluoromethylated quaternary stereocenter with high enantioselectivity (up to 99 % ee). This mild
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5 Nov 2024 • Journal Article • Physical Review Letters
Weak-Field Coherent Control of Ultrafast Molecule Making
AbstractCoherent control of ultrafast molecule making from colliding reactants is crucial for realizing coherent control of binary photoreactions (CCBP). To handle diverse excitation scenarios, feasibility with both weak and strong fields is essential. We experimentally demonstrate here the weak-field feasibility, achieving it even under thermally hot conditions typical of
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4 Nov 2024 • Journal Article • Physical Review Research
Reflection parity and space-time parity photonic conservation laws in parametric nonlinear optics
AbstractConservation laws are some of the most generic and useful concepts in physics. In nonlinear optical parametric processes, conservation of photonic energy, momenta and parity often lead to selection rules, restricting the allowed polarization and frequencies of the emitted radiation. Here we present a scheme to derive conservation laws in optical parametric processes in
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Nov 2024 • Journal Article • Nature Reviews Physics
Emerging tailored light sources for studying chirality and symmetry
AbstractUltrashort laser pulses are unique tools to trigger and probe the fastest charge dynamics in matter, allowing the investigation of fundamental physical phenomena with unprecedented resolution in space, time and energy. One of the most fascinating opportunities that ultrashort pulses offer is the possibility of modulating and investigating symmetries by tailoring the
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