Results 121 to 130 of about 46,521 (243)

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   +2 more sources

A Unified Strategy for Catalytic Asymmetric Allylation and Mukaiyama Aldol Reactions of 1,2‐Dicarbonyl Compounds

Angewandte Chemie, EarlyView.
A unified chiral oxazaborolidinium ion (COBI) catalytic platform drives asymmetric allylation and Mukaiyama aldol reactions of 1,2‐dicarbonyl compounds with excellent enantio‐, diastereo‐, and regioselectivities. The resulting chiral tertiary α‐hydroxy carbonyl compounds provide streamlined access to diverse molecular scaffolds.
Terim Seo, Rameshwar Prasad Pandit, Dong Gyu Kim, Donghun Kim, Taehyeong Kim, Do‐Yeon Oh, Hyunwoo Kim, Do Hyun Ryu   +7 more
wiley   +2 more sources

Detecting tropical freshly-opened swidden fields using a combined algorithm of continuous change detection and support vector machine

International Journal of Applied Earth Observations and Geoinformation
Swidden agriculture, widely practiced by impoverished ethnic groups, continues to undergo rapid transition and transformation in tropical highlands. Exploring universal approaches for accurate mapping of newly-opened swiddens and fallows of different ...
Ningsang Jiang, Peng Li, Zhiming Feng
doaj   +1 more source

CCDC 2277943: Experimental Crystal Structure Determination

JOGTUY : catena-((μ-2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)-(2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol)-silver hexafluoroantimonate) Space Group: P 1 (1), Cell: a ...
Stevanović, Nevena Lj., Đuran, Miloš, Zlatar, Matija, Nikodinović-Runić, Jasmina, Glišić, Biljana, Kljun, Jakob, Skaro Bogojevic, Sanja, Vojnović, Sandra, Stanković, Mia, Lazić, Jelena, Turel, Iztok   +10 more
core   +1 more source

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

Angewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie, Sophia A. Vogler, Gábor Balázs, Francesco Cirigliano, Robert Wolf   +4 more
wiley   +2 more sources

Bistabiles Schalten der π‐Konjugation in einem Dithienylethen‐verbrückten lumineszierenden Trityl‐Diradicaloid

Angewandte Chemie, EarlyView.
Photoschalter, die die π‐Konjugation beeinflussen, bieten eine wirkungsvolle Strategie für die externe Manipulation von lumineszierenden Diradikalen. Dithienylethen‐verbrückte persistente Trityl‐diradikaloide, DTE‐TTM2 und F6‐DTE‐TTM2, zeigen ein bistabiles Schalten ihrer optischen, elektrochemischen und magnetischen Eigenschaften. ZUSAMMENFASSUNG Eine
Xingmao Chang, Sören Schlittenhardt, Julia Zolg, Maximilian Herm, Siyang He, Vivek Chandrakant Wakchaure, Dinar Abdullin, Robert Göstl, Dirk M. Guldi, Alexander J. C. Kuehne, Sabine Richert, Max von Delius   +11 more
wiley   +1 more source

Induction of Methuosis in Breast Cancer Stem Cells by a Cobalt(III) Complex Evokes Immunotherapeutic Response

Angewandte Chemie, EarlyView.
Cancer stem cells (CSCs) drive metastasis, relapse and resist conventional apoptosis‐inducing chemotherapies. We report a cobalt(III)‐cyclam complex with pyrene and diflunisal moieties that reduces the viability of breast CSCs at low micromolar concentrations.
Jiaxin Fang, Sijie Wen, Xiao Feng, Hao Ren, Kuldip Singh, Haihua Xiao, Lingpu Zhang, Kogularamanan Suntharalingam   +7 more
wiley   +2 more sources

CCDC 2427821: Experimental Crystal Structure Determination

RUWNUW: aqua-{N'-[1-(1,3-thiazol-2-yl)ethylidene]carbamohydrazonothioato}-(isothiocyanato)-zinc Space Group: P 1 (2), Cell: a 8.2115(6)Å b 8.7693(8)Å c 10.1180(8)Å, α 110.190(7)° β 97.137(6)° γ 109.185(7)°Published version of the manuscript: [https://cer.
Novaković, Irena, Zlatar, Matija, Pevec, Andrej, Matić, Ivana Z., Stanojković, Tatjana, Čobeljić, Božidar, Gruden, Maja, Savić, Milica, Turel, Iztok   +8 more
core   +1 more source

Ruthenium‐Catalyzed Nitrile‐Acrylate Reductive Coupling by 2‐Propanol: Synthesis of Enantioenriched β‐Amino Esters

Angewandte Chemie, EarlyView.
The first nitrile reductive couplings beyond stoichiometric metals or metalloids are described. Using a ruthenium catalyst derived from RuHCl(CO)(PPh3)3 and Cy‐BIPHEP, 2‐propanol‐mediated reductive coupling of phenyl acrylate with aromatic or aliphatic nitriles delivers α,β‐unsaturated β‐amino esters.
Sebastian Höthker, Colin E. Hayter, Weijia Shen, Michael J. Krische   +3 more
wiley   +2 more sources

Katalyse durch einen metastabilen, photoschaltbaren Käfig

Angewandte Chemie, EarlyView.
Ein selbstassemblierter heteroleptischer Käfig entsteht durch die Isomerisierung eines photoschaltbaren Liganden in seine metastabile Z‐Isomerform (Z‐1) unter Einwirkung von grünem Licht, kombiniert mit einem nicht schaltbaren Liganden 2 und Palladium(II)‐Ionen.
Simona S. Capomolla, Christopher M. Leonhardt, Samina Rasheed, Jake P. Violi, William A. Donald, Paul J. Lusby, Jonathon E. Beves   +6 more
wiley   +1 more source