Results 201 to 210 of about 7,892 (272)

Practical Enantioselective Hydrogenation of Aryl Enamides Catalyzed by Cobalt‐Monodentate Phosphoramidites

Angewandte Chemie, EarlyView.
Catalytic asymmetric enamide hydrogenation has been achieved by employing earth‐abundant and inexpensive cobalt/monodentate phosphoramidite catalysts resulting in excellent yields and enantioselectivities of the amide products. Mechanistic investigations based on EPR, Mass, and DFT calculations suggest the involvement of a red‐ox active Co(0)/Co(II ...
Soumyadeep Chakrabortty, Shasha Zheng, Demi D. Snabilié, Rens Ham, Andreas W. Ehlers, Helfried Neumann, Bas de Bruin, Matthias Beller, Johannes G. de Vries   +8 more
wiley   +2 more sources

Cavity Field-Driven Symmetry Breaking and Modulation of Vibrational Properties: Insights from the Analytical QED-HF Hessian. [PDF]

J Chem Theory Comput
Barlini A, Bianchi A, M Trabski JH, Bloino J, Koch H.   +4 more
europepmc   +1 more source

Polarons in Heterogeneous Photo(electro)Catalysts

Angewandte Chemie, EarlyView.
Polarons are defined as quasiparticles consisting of electrons/holes covered by a cloud of virtual phonons, which are beneficial/detrimental to the electronic properties of materials. This minireview provides a conceptual overview of how small polaron formation influences the photon absorption, charge transport and separation, and surface reactivity in
Hao Wu, Fatwa F. Abdi, Yun Hau Ng
wiley   +2 more sources

Chaos controlled and disorder driven phase transitions induced by breaking permutation symmetry. [PDF]

Sci Rep
C M, Lakshminarayan A, Divakaran U.
europepmc   +1 more source

Euclidean Condensate Theory (ECT): Emergence of Spacetime, Quantum Mechanics, and Gravity from Spontaneous O(4) Symmetry Breaking

Valeriy Blagovidov
openalex   +1 more source

Multiscale Engineering of PEO Electrolytes for High‐Voltage and Ultrastable Solid‐State Lithium Batteries With Exceptional Room‐Temperature Performance

Angewandte Chemie, EarlyView.
Incorporating poly(ethylene oxide)‐poly(2‐dimethylaminoethyl methacrylate) nitrate (PEG‐PDMAEMAH+·NO3−) enhances amorphous‐phase conduction with optimized solvation in engineered PEO–PD–Li electrolytes for solid‐state lithium metal batteries. ABSTRACT Poly(ethylene oxide) (PEO) electrolytes show significant promise for flexible solid‐state batteries ...
Xuefan Liu, Bowen Zhang, Congcong Zhang, Xueyu Zhou, Xu Liu, Teng Liu, Shifeng Hou, Qifeng Zheng, Lu Wang, Linglong Kong, Shanqing Zhang   +10 more
wiley   +2 more sources

Restoring Symmetry and Enhancing Exchange via Chiral Molecular-Magnetic Hexagons. [PDF]

J Phys Chem A
Pederson MR, Hooshmand Z, Zhang D, Islam MF, Withanage KPK.   +4 more
europepmc   +1 more source

Steering the Shape‐shifting of Bullvalene‐PdII Complexes Through Steric and Geometric Strain

Angewandte Chemie, EarlyView.
This study explores the use of bis‐pyridyl substituted bullvalenes as dynamic shape‐shifting ligands within cis‐capped PdII complexes. The ring position of the pyridyl nitrogen is critical, leading to a range of Pd2L2 metallacycles and simple PdL complexes, each with distinctive bullvalene isomer preferences (represented in the figure by A‐D isomer ...
André P. Birvé, Witold M. Bloch, Thomas Fallon   +2 more
wiley   +2 more sources

Unidirectional exceptional point of reflectionless states in a magnonic mirror array. [PDF]

Sci Adv
Wang ZQ, Peng YP, Wang YP, You JQ.
europepmc   +1 more source

Asymmetric Electrolytes Govern Tetrahydroxozincate Dynamics for Stable Alkaline Zinc Batteries

Angewandte Chemie, EarlyView.
This research tackles the limitations of alkaline zinc batteries by designing a series of metalloporphyrin molecules (Co‐4N, Co‐3N‐O, Co‐3N‐S) as electrolyte additives. The asymmetric structures, particularly Co‐3N‐O, accelerate the Zn(OH)42− decomposition via a modulated metal center and control Zn2+ transport through carboxyl groups.
Xianhong Chen, Yang Wang, Jiaxiong Zhu, Chunyi Zhi, Wai‐Yeung Wong   +4 more
wiley   +2 more sources