Results 111 to 120 of about 115,311 (290)

Ultrastable Self‐Cross‐linkable Electro‐Optic Materials Based on a Bisanthracene Scaffold

Advanced Electronic Materials, EarlyView.
A novel bisanthracene‐based self‐cross‐linkable electro‐optic chromophore (TD2) is developed. TD2 exhibits a high r33 of 141 pm/V and a cross‐linked Tg up to 195 °C, retaining 99.75% of its initial EO response after 500 h at 85 °C, showing record‐high thermal stability for single‐molecule self‐cross‐linking EO materials.
Xingtao Wang, Zhifan Liu, Qinghua Yang, Jiayan Xu, Lin Li, Fenggang Liu, Shengyu Cong   +6 more
wiley   +1 more source

Syntheses and crystal structures of [IrIII{C(CHCO2Et)(dppm)2-κ4P,C,C′,P′}ClH]Cl·2.75CH2Cl2 and its derivatives, [IrIII{C(CHCO2Et)(dppm)2-κ4P,C,C′,P′}(CH2CO2Et)Cl]Cl·CH3OH·0.5H2O, [IrIII{C(CHCO2Et)(dppm)2-κ4P,C,C′,P′}Cl2]Cl·CH3OH·2H2O and [IrIII{C(CHCO2Et)(dppm)2-κ4P,C,C′,P′}(CH2CO2Et)(CO)]Cl2·2CH2Cl2·1.5H2O

Acta Crystallographica Section E: Crystallographic Communications, 2019
The common feature of the four iridium(III) salt complexes, (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}(ethoxyoxoethanylidene)methane-κ4P,C,C′,P′)chloridohydridoiridium(III) chloride methylene chloride 2.75-solvate (4), (bis ...
Inge Schlapp-Hackl, Christoph Falschlunger, Kathrin Zauner, Walter Schuh, Holger Kopacka, Klaus Wurst, Paul Peringer   +6 more
doaj   +1 more source

The Search for an Epoxide Precursor in Trimethylenemethane (TMM) Cycloaddition Reactions [PDF]

, 2012
Trimethylenemethane (TMM) cycloaddition is a Pd(0)-catalyzed process in which new carbon rings are formed, which can be potentially useful in synthetic organic processes.
Miko, Christopher
core   +2 more sources

Far-infrared vibrational properties of high-pressure-high-temperature C60 polymers and the C60 dimer [PDF]

, 2000
We report high-resolution far-infrared transmission measurements of the 2 + 2 cycloaddition C-60 dimer and two-dimensional rhombohedral and one-dimensional orthorhombic high-pressure high-temperature C60 polymers.
A.M. Rao, A.M. Rao, B. Burger, B. Burger, B. Chase, B. Ma, B. Renker, B. Sundqvist, D. Porezag, G. B. Adams, G. Oszlányi, G. Oszlányi, G.-W. Wang, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.B. Adams, G.M. Bendele, H. Kuzmany, H.J. Monkhorst, J. B. Page, J. L. Musfeldt, J. Menéndez, J. Menéndez, J. Onoe, J. Winter, J.R. Fox, K. Esfarjani, K. Kamarás, K. Kamarás, K. Kamarás, M. O’Keeffe, M. S. Dresselhaus, M.C. Martin, M.E. Kozlov, M.R. Pederson, O.F. Sankey, P. Launois, P.A. Persson, P.W. Stephens, R. Moret, S. Lebedkin, S. Pekker, T. Pusztai, V. C. Long, V.A. Davydov, V.A. Davydov, V.A. Davydov, V.C. Long, V.D. Blank, W. E. Mayo, W. Krätschmer, W.G. Fateley, Y. Iwasa, Y. Iwasa, Y. Iwasa   +58 more
core   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

Advanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park, Saeed Pourasad, Jinhong Mun, Arunkumar Chitteth Rajan, Tae Hyeon Park, Anand Rohit, Mohammad Zafari, Tan‐Lien Pham, Eunjae Jung, Bonseung Koo, Miran Ha, Gi Beom Sim, Hyun Gyu Park, Won Woong Choi, Kwanghyeon Jo, Soohaeng Yoo Willow, David ChangMo Yang, Chang Woo Myung, Geunsik Lee, Kwang S. Kim   +19 more
wiley   +1 more source

Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations

Angewandte Chemie, EarlyView.
Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera, Francesco Basoccu, Andrea Porcheddu   +2 more
wiley   +2 more sources

A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn²⁺ ions [PDF]

, 2016
A new pyrenyl appended hexahomotrioxacalix[3]arene L featuring 1,2,3-triazole linkers was synthesized as a fluorescent chemosensor for Zn²⁺ in mixed aqueous media. It exhibited high affinity toward Zn²⁺, and the monomer and excimer emission of the pyrene
Ikejiri, Yusuke, Jiang, Xue-Kai, Ni, Xin-Long, Redshaw, Carl, Wu, Chong, Yamato, Takehiko, Zeng, Xi, Zhao, Jiang-Lin   +7 more
core   +2 more sources

A Neutral “Masked” Diborene and Its Reactivity Toward Metal‐Free Pyridine Homocoupling

Angewandte Chemie, EarlyView.
An unprecedented neutral “masked” diborene, formed via intramolecular arene dearomatization of an N‐heterocyclic imine‐supported free diborene, can be photochemically released to regenerate the highly reactive triplet diborene intermediate. Computational analysis elucidates the bonding situation of the hitherto elusive free diborene species, and the ...
Ke Li, Arseni Kostenko, John A. Kelly, Tobias Weng, Shigeyoshi Inoue   +4 more
wiley   +2 more sources

Radical‐Based On‐Surface Transformation of Nonplanar Aromatics Into Nonbenzenoid Nanographenes

Angewandte Chemie, EarlyView.
Formation of radicals in nonplanar hydrocarbons through thermally induced dehydrogenation leads to molecular transformation via intramolecular radical‐based cyclization and dimerization, leading to formation of nonbenzenoid nanographenes. ABSTRACT On‐surface synthesis has emerged as a powerful tool for atomically precise C─C bond formation, enabling ...
Daniel Rothhardt, Ming‐Lun Pan, Michael Píro, Stefan Niklaus Heinen, Christian Wäckerlin, Hans Josef Hug, Yao‐Ting Wu, Karl‐Heinz Ernst, Miloš Baljozović   +8 more
wiley   +2 more sources

Synthesis of Anthraquinones by Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of a 1,2-Bis(propiolyl)benzene Derivative with Alkynes

Inorganics, 2019
[2 + 2 + 2] cycloaddition of a 1,2-bis(propiolyl)benzene derivative with terminal and internal alkynes takes place in the presence of [Ir(cod)Cl]2 (cod = 1,5-cyclooctadiene) combined with bis(diphenylphosphino)ethane (DPPE) to give anthraquinones in 42 ...
Takahiro Sawano, Yuko Toyoshima, Ryo Takeuchi   +2 more
doaj   +1 more source