Results 51 to 60 of about 3,547 (232)
The first low‐oxidation (I/III) state chromium‐complex bearing a O‐chelating NHC ligand has been synthesized and structurally characterized by single‐crystal X‐ray analysis. The formation of the mixed‐valence species was further supported by SQUID magnetometry and high‐field electron paramagnetic resonance (EPR) spectroscopy.
Somnath Bhattacharya +4 more
wiley +1 more source
From Phosphinimines to Four‐Membered SiCPN Cations: Insights Into N–Si Bonding and Ring Strain
Sterically tuned N‐silyl phosphinimines enable four‐membered SiCPN cations. Hydride abstraction yields cyclic cations for Me and iPr substituents at silicon, while tBu gives a protonated intermediate. Multinuclear NMR spectroscopy, X‐ray crystallography, thermochemical density functional theory investigations, and natural bond orbital analyses reveal ...
Alexander Falk, Jonathan O. Bauer
wiley +1 more source
Elements of natural history in Sidereus Nuncius [PDF]
Scholars often saw 'Sidereus nuncius' as inaugurating a novel genre of scientific writing; one that mixes elements of astronomy and natural philosophy, mixed-mathematics and travel reports, cosmography and the conventions of baroque drawing, elements of ...
Jalobeanu, Dana
core
A Pd(0)‐catalyzed cyclotrimerization of benzoCOTynes to form tri(benzo[8]annulenes) was developed. Three distinct isomers were isolated and structurally characterized by single‐crystal X‐ray diffraction. Ligand modulation proved crucial for enhancing regioselectivity: P(4‐OMePh), and (S)‐tBu‐Phox promoted the formation of the symmetric isomers.
Jesús Bello‐García +2 more
wiley +1 more source
High‐performance heat‐resistant tactile sensor for intelligent sensing and safe operation
Abstract Tactile sensing in high‐temperature environments remains a critical challenge for robotic systems operating in industrial manufacturing, food processing, and other high‐temperature assembly operations. Herein, we report a heat‐resistant flexible tactile sensor with comprehensive high performance, featuring a hierarchical architecture ...
Yugang Chen +8 more
wiley +1 more source
A story about standardization for design of glass works [PDF]
This contribution attempts to give an overview of the European standardization framework which is related to the design and calculation of glass works in buildings.
Belis, Jan +3 more
core
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura +4 more
wiley +1 more source
The photophysical performance of gold‐doped copper‐rich nanoclusters can be tuned by surface functionalization. Subtle ligand modification enhances intermolecular interactions, thereby reducing nonradiative decay and markedly improving photoluminescence. Comparative photographs and quantum yield values (Φ = 55% vs.
Navya Indla +6 more
wiley +1 more source
Application of manufactured products [PDF]
A wide range of products can be manufactured from the following materials: (1) lunar regolith or basalt; (2) regolith or rock beneficiated to concentrate plagioclase or other minerals; (3) iron, extracted from lunar soil or rocks by various means; (4 ...
Duke, Michael B., Sastri, Sankar
core +1 more source
Captive pandas are at risk from environmental toxins [PDF]
Ex situ conservation efforts are the last resort for many critically endangered species, and captive breeding centers are thought to provide a safe environment for producing individuals for eventual re-introduction to the wild.
Abella +22 more
core +1 more source

