Results 171 to 180 of about 36,481 (241)

Engineering Atomically Precise Cu4I4 Nanoclusters With Integrated Adsorption and Hydrogenation Functions for Efficient Photocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, EarlyView.
Efficient photocatalytic nitrate‐to‐ammonia conversion is achieved over an atomically precise Cu4I4 motif through dual‐site cooperation. Lewis‐acidic Cu centers promote nitrate adsorption and activation, while adjacent I sites facilitate active hydrogen generation for stepwise hydrogenation.
Wanting Zhang, Yuehua Li, Junjie Jin, Chunwei Dong, Xi Cao, Xingchi Li, Xuanjun Wu, Jiaqi Wang, Atta Ullah, Gaspar Ferreyra Vaggione, Rodrigo A. Iglesias, Yun Chen, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

Pyridine C─N Transposition via Cycloaddition-Cycloreversion. [PDF]

Angew Chem Int Ed Engl
Conboy A, Greaney MF.
europepmc   +1 more source

Molecular Recognition by Halogen Bonding With Atomic Precision in a Covalent Organic Cage

Angewandte Chemie, EarlyView.
A covalent organic cage embedding a single inward‐facing halogen‐bond (XB) donor enables recognition of DMMP, a Sarin surrogate, with atomic precision through halogen bonding, while both the hydrogen bonding donor encaged analogue and the XB donor open model ‐lacking cavity‐ show no affinity.
Pierre‐Antoine Dupin, Jian Yang, Elise Antonetti, Bastien Chatelet, Xavier Bugaut, Jean‐Pierre Dutasta, Paola Nava, Anne‐Doriane Manick, David Bardelang, Alexandre Martinez   +9 more
wiley   +1 more source

Stabilizing Zinc Anodes via a Zeolite‐Induced Localized Supersaturated Electrolyte Interface

Angewandte Chemie, EarlyView.
A low‐Si/Al‐ratio ZSM‐5 (LZ5) interphase induces a localized supersaturated electrolyte interface on Zn, with a local Zn2+ concentration exceeding 10 M in a 1 M ZnSO4 bulk electrolyte. Continuous Zn2+ enrichment within the zeolite nanochannels creates an H2O‐deficient, anion‐enriched solvation environment, promoting rapid desolvation, uniform ...
Xiaoqi Liu, Yipu Xu, Linjiao Wei, Hongman Sun, Zhengxing Qin, Xizhi Zhang, Dahai Zhang, Xianguo Li, Han Hu, Wei Xing, Yu Zhang, Bin Luo, Zifeng Yan   +12 more
wiley   +1 more source

To Greater Twist: A Kinetically Biased π‐Radical Cascade

Angewandte Chemie, EarlyView.
π‐Radical cascades enable step‐economic construction of complex polycyclic aromatic frameworks. In this work, we show that a multifurcating pathway can be kinetically steered toward a single, more distorted product. This counterintuitive “falling‐upward” outcome arises from an intrinsic mechanistic bias, revealing a broader dimension of control in π ...
Yong Yang, Joshua C. Walsh, Li Sun, Kevin A. Quintanilla, Ignacio A. Rivas, Zheng Zhou, Juan Casado, Carlos M. Cruz, Michal Juríček   +8 more
wiley   +1 more source

Anion Engineering of Surface Frustrated Lewis Pairs for Light‐Assisted CO2 Hydrogenation to Methanol

Angewandte Chemie, EarlyView.
Anion engineering through nitrogen incorporation regulates the local coordination environment and promotes the formation of defect‐associated Ga–O/N frustrated Lewis pairs in non‐stoichiometric zinc gallium oxide. The engineered surface sites facilitate heterolytic H2 splitting, while the modified electronic structure enhances light utilization ...
Rui Song, Jiuli Guo, Chaoqian Ai, Xueqiu Wu, Andrew Wang, Yang‐Fan Xu, Chaoran Li, Zhijie Chen, Paul N. Duchesne, Emerson MacNeil, Zeshu Zhang, Jianheng Xu, Jingyan Zhang, Yahan Zhang, Xiaoliang Yan, Xingda An, Wenqiang Qu, Yiran Li, Guangming Cai, Zhihao Zhu, Jessica Ye, Athanasios A. Tountas, Wenzhe Zhou, Maochang Liu, Chandra Veer Singh, Le He, Dengwei Jing, Geoffrey A. Ozin   +27 more
wiley   +1 more source

Luminescence Vapochromism of a Cu(I)/Na Phosphane Iodide Assembly Based on a Secondary‐Sphere Sodium Response

Angewandte Chemie, EarlyView.
The luminescence of a heterometallic d‐s {Cu2I2Na2} phosphane‐phosphinate aggregate is regulated by an interplay of Na+–π/I– contacts and reversible coordination of oxygen‐containing organic molecules to Na ions. Structural variations caused by the incoming guest lead to a wide and selective variation of the emission color and illustrate a new approach
Henna Korhonen, Dorota Głosz, Mariia Beliaeva, Andrey Belyaev, Constance Lecourt, Adrien Schlachter, Karine Costuas, Guillaume Calvez, Robert Podgajny, Christophe Lescop, Igor O. Koshevoy   +10 more
wiley   +1 more source

Syntheses, X‐ray Crystal Structures, and Raman Spectra of Self‐Assembled XeO3 Chain and Network Complexes of Polytopic sp2‐ and sp3‐Nitrogen Bases

Angewandte Chemie, EarlyView.
Supramolecular 1‐D, 2‐D, and 3‐D networks comprised of ‐(‐O═Xe(O2)‐‐)‐∞ and ‐(‐Xe(O2)O‐‐‐HO(H)‐‐)‐∞ chains coordinated to polytopic N‐base ligands were synthesized and structurally characterized by X‐ray crystallography. Their Xe‐‐‐N and Xe‐‐‐O bonds are characteristic of σ–hole bonds in which the nucleophilic Lewis base sites of the N‐ligands, H2O ...
James T. Goettel, Hélène P. A. Mercier, Gary J. Schrobilgen   +2 more
wiley   +1 more source

Macrocyclization of ω‐Isocyano Aldehydes

Angewandte Chemie, EarlyView.
The ω‐isocyano aldehydes readily undergo cyclization to afford α‐acyloxy, α‐hydroxy, α‐acetamido, and α‐keto macrolactams, as well as tetrazole‐fused macrocycles, via C(sp3)─C(sp2) bond formation, providing access to diverse α‐functionalized medium‐sized lactams and macrolactams. ABSTRACT Medium‐sized rings and macrocycles constitute a privileged class
Baochao Yang, Teerawat Songsichan, Cyril Piemontesi, Qian Wang, Jieping Zhu   +4 more
wiley   +1 more source

Atroposelective Pd(0)‐Catalyzed Direct Intermolecular C─H Arylation of Thiazole N‐Oxides Provides Access to Heterobiaryls

Angewandte Chemie, EarlyView.
An enantioselective Pd(0)‐catalysed arylation at the C4‐position of thiazole N‐oxides directly forges the atropochiral heterobiaryl axis. A tailored point‐ and axially chiral monodentate phosphine ensures high reactivities along with a tight stereocontrol.
Vitalii Smal, Nicolai Cramer
wiley   +1 more source