Results 171 to 180 of about 50,898 (201)
Redshifting TADF Emission With a Bora‐Triptycene Lewis Acid
Angewandte Chemie, EarlyView.Bathochromic emission shifting of donor–acceptor and multi‐resonant TADF emitters is achieved by adduct formation with a thia‐bora‐triptycene Lewis acid. TADF properties are retained on adduct formation whilst delivering > 100 nm redshift of the emission.
Mathew J. Cross +4 more
wiley +2 more sources
Speed Control of Single Molecules on a Surface
Angewandte Chemie, EarlyView.The speed of a single molecule moving across a silver crystal surface is determined with the tip of a scanning tunneling microscope (STM). Travelling distances Δx and travelling times Δt, which are determined simultaneously with high precision, allow to directly measure time–distance relationships.
Donato Civita +5 more
wiley +1 more source
Angewandte Chemie, EarlyView.Merging silylium‐ion and palladium catalysis provides a mechanistically distinct route to allylsilanes by formal C–H/Si–H metathesis. Using allylsilanes as silicon proelectrophiles, various allylarenes undergo migrative silylation, selectively yielding (E)‐allylsilanes.
Longhui Duan +5 more
wiley +1 more source
Step‐Associated Cu‐Ceria Interfaces Enhance Catalytic Activity and Selectivity
Angewandte Chemie, EarlyView.The catalytic activity and selectivity of supported Cu nanoparticles depends on their interfacial environments, with Cu nanoparticles at step‐associated environments converting CO2 to methanol much faster than those on terrace facets, indicating that step sites create more active metal–oxide interfaces.
Shuxuan Feng +12 more
wiley +1 more source
1,2‐Bis(boronate) Arenes by Borylation Directed Borylation
Angewandte Chemie, EarlyView.Boron electrophiles derived from tetrabromo‐pyrazaboles and AlCl3 affect the regioselective vicinal double C–H borylation of a range of arenes and polycyclic aromatic hydrocarbons (PAHs). A subsequent pinacol installation step then affords the vicinal bis‐boronate ester‐substituted arene/PAH.
Anna V. Schellbach +4 more
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.By combining polarization‐resolved IRRAS with hybrid HSE06 DFT calculations, we establish site‐specific vibrational fingerprints, adsorption geometries, and binding energies for CO on wide‐band‐gap MgO surfaces. Low‐coordinated Mg4c2+ step‐edge sites, rather than terrace Schottky defects, are identified as the dominant binding and reactive sites, with ...
Wangtao Li +9 more
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.Under ambient conditions, the TiO2 surface becomes hydrated by adsorbed hydroxyl groups (OH) and water molecules. This surface hydration promotes methanol decomposition, rendering the first deprotonation step nearly barrierless compared with ideal UHV conditions.
Milad Salarinasab +12 more
wiley +1 more source