Results 71 to 80 of about 62,479 (238)

Redox‐Active Tungsten Mono‐Oxo Bis(dithiolene) Complex: A Fast‐Rechargeable Anode for High‐Capacity Lithium‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
This study reports the first application of a W‐oxo bis(dithiolene) complex, (Et4N)2[WO(S2C2(C6H5)2)2], as a novel anode material for lithium‐ion batteries. This complex stores Li+ ions via multivalent W‐centered redox processes involving its oxo (WO) and dithiolene (S) sites.
Honggyu Seong   +5 more
wiley   +1 more source

New Discoveries in the Realm of Metal–Metal Multiple Bonds:[η5-(C5Me5)Co2], the First Organometallic Multiple-Bond Complex without Bridging Ligands [PDF]

open access: yes, 1991
Double bond, yes or no? That is the poignant question in the case of the complex [Cp*CoCoCp*] prepared by J.J. Schneider et al. The Co-Co distance and the number of electrons suggest a double bond, while the H-1-NMR spectrum and the poor reactivity ...
Wachter, Joachim
core   +1 more source

Cyano-functionalized polyethylenes from ethylene/acrylamide copolymerization

open access: yesNature Communications
Synthesizing functionalized polyethylenes via ethylene coordination copolymerization with fundamental low-cost vinyl polar monomers provides a very attractive approach.
Shu-Yang Yu   +10 more
doaj   +1 more source

In the Footsteps of Alfred Werner: The Institute of Inorganic Chemistry at the University of Zurich

open access: yesCHIMIA, 2008
Inorganic chemistry has a long-standing tradition at the University of Zurich starting with Carl Jacob Löwig, the first professor of chemistry.
Roger Alberto   +3 more
doaj   +1 more source

Paired electrolysis-enabled nickel-catalyzed enantioselective reductive cross-coupling between α-chloroesters and aryl bromides

open access: yesNature Communications, 2022
Precise matching of reaction rate and electric potential of electrodes in paired electrolysis is challenging. Here, the authors develop paired-electrolysis-enabled nickel-catalyzed enantioselective reductive cross-coupling of α-chloroesters and aryl ...
Dong Liu   +6 more
doaj   +1 more source

Substrate‐Affinitive P‐Type Azapolycyclic Photosensitizer for Chemoselective Nitrilization Under Mild Conditions

open access: yesAdvanced Science, EarlyView.
We developed a series of quinoxalinoquinoxaline (QQ) photosensitizers featuring high and tunable excited‐state reduction potentials (E(PC•+/PC*) = –1.76 to –2.05 V vs. SCE). Their hydrogen‐bonding interaction with carbonyl substrates enables selective single‐electron transfer events for selective nitrilization of 1° amides, offering a tunable ...
Seongwoo Bae, Dongwook Kim, Jinwoo Kim
wiley   +1 more source

Ring‐Opening Arylation of Cyclic Diaryliodoniums via Cyclic Triaryliodanes as Aryne Precursors and Dynamic Aryl Reservoirs

open access: yesAngewandte Chemie, EarlyView.
Cyclic diaryliodonium salts engage aryl Grignard reagents to trigger a self‐propagating aryne–arylation cycle. Transient cyclic triaryliodanes serve as aryne precursors and dynamic aryl reservoirs, delivering iodine‐capped teraryls with predominant meta‐selectivity. The preserved C─I bond enables outward π‐extension or inward recyclization.
Daichi Ikeshita   +2 more
wiley   +2 more sources

Sensitivity of the photo-physical properties of organometallic complexes to small chemical changes

open access: yes, 2010
We investigate an effective model Hamiltonian for organometallic complexes that are widely used in optoelectronic devices. The two most important parameters in the model are $J$, the effective exchange interaction between the $\pi$ and $\pi^*$ orbitals ...
Jacko, A. C.   +2 more
core   +1 more source

Solid Ethanol as a Renewable, Low‐Toxicity, Electron‐Beam Direct Write, and Biomedical Material

open access: yesAdvanced Science, EarlyView.
3D ice lithography (3DIL) enables the fabrication of intricate submicrometer objects using ethanol as a renewable starting material. This study combines process optimization, structural and material analysis, and biomedical applications, from cell culture scaffolds to the patterning of neurostimulation electrodes, demonstrating performance in both in ...
Bruno Perdigão   +16 more
wiley   +1 more source

Alcohol‐Directed Carboamination of Conjugated Enynes

open access: yesAngewandte Chemie, EarlyView.
The first general three‐component intermolecular Pd‐catalyzed carboamination of conjugated enynes enables the coupling of anilines and aryl triflates to produce functionalized allenic amines, utilizing a native alcohol directing group to control regioselectivity.
Helena Solé‐Àvila   +3 more
wiley   +2 more sources

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