Results 51 to 60 of about 25,864 (264)

Dual Activation of H2 and CO2 by a Pincer‐Type Ni–Zn Heterobimetallic Complex

Angewandte Chemie, EarlyView.
A bimetallic Ni−Zn complex performs sequential activations of H2 (1 equiv) and CO2 (2 equiv). This bimetallic cooperativity is attributed to the weak Lewis acidic nature of Zn(II), which promotes fluxional ligand binding. Namely, an X‐type ligand at Ni, where X is hydride or formate, toggles between two different binding modes: bridging Zn(μ‐X)Ni and ...
Krishnendu Dey, Matthias Borowski, Gregor Schnakenburg, Connie C. Lu   +3 more
wiley   +2 more sources

Mechanochemical ligand-controlled regiodivergent hydroarylation of alkenes via iron-catalyzed C−H activation

Nature Communications
The iron-catalyzed hydroarylation of alkenes with indoles is a sustainable, effective synthetic transformation towards the construction of functionalized indoles - crucial motifs for various bioactive molecules and drug candidates.
Zi-Jing Zhang, Ziyue Liu, Xinran Chen, Lutz Ackermann   +3 more
doaj   +1 more source

N‑heterocyclic carbene complexes provide a platform for functional amphidynamic crystals

Communications Chemistry, 2021
Organizing molecular rotors in highly ordered crystals enables the use of molecular motion to control physical properties. Now, N‑heterocyclic carbene complexes form a basis for molecular gyroscopes in which solid-state emission is quenched by axle ...
Victoria Richards
doaj   +1 more source

Step‐Edge Functionalization by N‐Heterocyclic Carbenes Enhances Catalytic Activity in Electrochemical CO2 Reduction

Advanced Materials, EarlyView.
Atomically precise functionalization by N‐heterocyclic carbenes enhances the catalytic efficiency of macroscopically defined step edges toward electrochemical CO2${\rm CO}_2$ reduction. Sub‐molecular imaging reveals conformational differences between specific NHCs, which can be correlated with their catalytic performance. Photoelectron spectroscopy and
Philipp Wiesener, Ankita Das, Elena Kolodzeiski, Duong Tran, Ying Pan, Harald Fuchs, Nieves López‐Salas, Saeed Amirjalayer, Frank Glorius, Harry Mönig   +9 more
wiley   +1 more source

[3,3′-Dimesityl-1,1′-(4,5:16,17-dibenzo-3,6,9,12,15,18-hexaoxaeicosane-1,20-diyl)diimidazolin-2-ylidene]dithiocyanatopalladium(II)

Acta Crystallographica Section E, 2009
The coordination geometry of the Pd atom in the title compound, [Pd(SCN)2(C46H54N4O6)], is approximately square-planar. The N-heterocyclic carbene (NHC) metallacrown ether ligand binds to the Pd atom in a trans orientation through the carbene C atoms of ...
Mei-Ming Luo, Xiao-Qin Zhang
doaj   +1 more source

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source

A Stable N-Heterocyclic Carbene with a Diboron Backbone

, 2016
The synthesis of a novel five-membered inorganic ring, a stable N-heterocyclic carbene with a diboron backbone, is reported. A pentacarbonyltungsten complex containing the new carbene is also described.
Kelly E. Krahulic (2378107), Gary D. Enright (2268484), Masood Parvez (1569997), Roland Roesler (2373586)   +3 more
core   +4 more sources

Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis

Nature Communications, 2022
Desymmetrization of achiral building blocks is one of the most efficient ways to access enantiopure compounds of synthetic relevance. Here, the authors desymmetrize glutarimides with alcohols via an imide C–N bond cleavage under NHC organocatalysis.
Zhouli Hu, Chenlong Wei, Qianqian Shi, Xianfang Hong, Jinhua Liu, Xiangui Zhou, Jinna Han, Wei Cao, Ashis Kumar Gupta, Xiaoxiang Zhang, Donghui Wei, Zhenqian Fu, Wei Huang   +12 more
doaj   +1 more source

Metal (n+1)p‐nd Orbital Hybridization and Excited‐State Metal–Ligand π‐Interactions Enable d10 Carbene‐Metal‐Amide TADF OLEDs with High Efficiency and Long Operational Lifetime

Advanced Science, EarlyView.
We elucidate the key roles of metal p‐d orbital hybridization, excited‐state metal–ligand π‐interactions, and structural rotation in TADF of d10 CMA complexes. Introducing electron‐withdrawing or π‐extended ligand substituents weakens excited‐state metal‐ligand π‐interactions and improves kTADF, but may compromise emitter stability in device operation.
Shuo Xu, Rui Tang, Qingyun Wan, Gang Cheng, Jun Yang, Chi‐Ming Che   +5 more
wiley   +1 more source

Natureza da ligação Ru-NO em novos nitrosilo complexos de rutênio com ligantes quelantes CCC e CNC contendo carbenos [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Compostos capazes de liberar ou sequestrar óxido nítrico são promissores agentes ...
Coimbra, Daniel Fernando
core