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Resonant X-ray excitation of the nuclear clock isomer 45Sc

Resonant X-ray excitation of the nuclear clock isomer 45Sc
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Acta Crystallogr , Nuclear Data Sheets , National Laboratory , For Nuclear , Pm Nuclear , Argonne National Laboratory , Tw Nuclear , Nuclear Bragg , Rg Nuclear , Hyperfine Interact , Data Sheets , Free Electron Laser Conference , Europeanx Ray Free Electron Laser , Synchrotron Radiat , X Ray Bragg , Europeanx Ray Free Electron , Quantum Mechanics , Non Relativistic Theory ,

Geminal-atom catalysis for cross-coupling

Single-atom catalysts (SACs) have well-defined active sites, making them of potential interest for organic synthesis1–4. However, the architecture of these mononuclear metal species stabilized on solid supports may not be optimal for catalysing complex molecular transformations owing to restricted spatial environment and electronic quantum states5,6. Here we report a class of heterogeneous geminal-atom catalysts (GACs), which pair single-atom sites in specific coordination and spatial proximity. Regularly separated nitrogen anchoring groups with delocalized π-bonding nature in a polymeric carbon nitride (PCN) host7 permit the coordination of Cu geminal sites with a ground-state separation of about 4 Å at high metal density8. The adaptable coordination of individual Cu sites in GACs enables a cooperative bridge-coupling pathway through dynamic Cu–Cu bonding for diverse C–X (X = C, N, O, S) cross-couplings with a low activation barrier. In si ....

Faust Akl , Ra Van Bekkum , S Development , Gaussian Inc , International Organization For Standardization , Rg Development Of The Colle Salvetti , Organic Synthesis , Transition Metal Catalysts , Catalyzed Cross Coupling Reactions , Van Bekkum , Chemicals Through Heterogeneous Catalysis , Del Zotto , Infrared Spectroscopy , Synchrotron Radiat , Cycle Assess ,

Soft-Condensed Matter Science has a bright future via the Diamond-II upgrade


Mar 11 2021 Read 205 Times
Author: Robert P. Rambo on behalf
of Diamond Light Source Ltd
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In 2020, the most significant application of Soft-condensed matter (SCM) science was, undoubtedly, the development of the COVID vaccines by Pfizer-BioNTech and Moderna which are composed of a synthetic messenger RNA encapsulated within a lipid nanoparticle [1].  SCM science drives continued improvements to quality of life as SCM science is integral to a broad range of industrial sectors.  These sectors include food safety and waste, agriculture, polymers, coatings, additive manufacturing, lubricants and additives, personal care, electronics, energy storage, transportation, health and medicine.
SCM materials occur over a range of physical states that include liquid, semi-solid, waxes, glasses and aerosols. This necessitates a complementary and diverse suite of instrumentation and methodologies for understanding how molecular de ....

United Kingdom , Pept Lett , Journal Of The Physical Society Japan , Light Source , Soft Condensed Matter , Diffractedx Ray Tracking , X Ray Foot Printing Mass Spectrometry , Control Release , Grand Challenges , Soft Matter , Advanced Photon , Synchrotron Radiat , Protein Structure , Physical Society , Recent Advances , X Ray Hydroxyl Radical Footprinting , Advanced Light Source , Protein Pept Lett , ஒன்றுபட்டது கிஂக்டம் , இதழ் ஆஃப் தி உடல் சமூகம் ஜப்பான் , ஒளி மூல , மென்மையான அமுக்கப்பட்ட விஷயம் , எக்ஸ் ராய் கால் பிரிந்த்ிங் நிறை ஸ்பெக்ட்ரோமெட்ரி , கட்டுப்பாடு வெளியீடு , மாபெரும் சவால்கள் , மென்மையான விஷயம் ,