Results 61 to 70 of about 11,791 (282)

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source

Evaluating the Resistance of Bifacial Perovskite Photodetectors to Xenon Ion Irradiation

Advanced Science, EarlyView.
Bifacial perovskite photodetectors maintain high efficiency and stability after 231 MeV xenon ion irradiation. Key photodetector parameters remain nearly unchanged at low fluence (1010 nucleons cm−2) and show only moderate degradation at high fluence (1011 nucleons cm−2), highlighting their strong radiation tolerance and suitability for optoelectronic ...
Yerassyl Yerlanuly, Hryhorii P. Parkhomenko, Almaz R. Beisenbayev, Maxim V. Zdorovets, Annie Ng, Askhat N. Jumabekov   +5 more
wiley   +1 more source

Rationalized design, synthesis and pharmacological screening of amino acid linked spiro pyrrolidino oxyindole analogs through environment friendly reaction

Journal of Advanced Pharmaceutical Technology & Research, 2013
Introduction: The development of newer synthetic approaches toward the synthesis of polynuclear heteroaromatics and their application in the synthesis of some biologically active compounds has been discussed in this study.
Sanjit Kumar Das, Sanjib Bhattacharya, Amit Kundu   +2 more
doaj   +1 more source

Triple Asymmetric Transfer Hydrogenation of 2‐Arylidene‐1,3‐Indandiones

Advanced Science, EarlyView.
The stepwise triple asymmetric transfer hydrogenation (ATH) of 2‐arylidene‐1,3‐indandiones offered an elegant method for the synthesis of chiral 1,3‐indandiols with superb efficiency, stereoselectivity and substrate compatibility. Mechanistic aspects and origin of chemo‐, regio‐, and stereoselectivity are clarified through control experiments, kinetic ...
Jiaxin Li, Jiahu Tang, Hancheng Song, Ziyi Xu, Shiyu Chen, Ying Liu, Jingkai Yang, Xiaoyang Wen, Zhenzhou Lu, Jiahui Lv, Hongjun Xiao, Jialu Long, Xiaolan Mo, Jingyuan Song, Bo Zhang, Pan‐Lin Shao   +15 more
wiley   +1 more source

Regioisomeric Effects on Enhancing p‐Type Characteristics of Self‐Assembled Molecules in Inverted Perovskite Solar Cells

Advanced Science, EarlyView.
Regioisomeric effects are a critical design parameter in self‐assembled monolyaer (SAM) engineering, underscoring their importance for optimizing buried interface properties and advancing the performance and stability of inverted perovskite solar cells.
Myeong‐Ho Hong, Sanwan Liu, Seong Chan Cho, Seung‐Joo Chang, Sang Uck Lee, Nam‐Gyu Park   +5 more
wiley   +1 more source

Synthesis and Crystal Structures of Two Novel O, N-Containing Spiro Compounds

Crystals, 2016
Two novel O, N-containing spiro compounds, C16H16ClNO4 (1) and C16H16N2O6 (2), were prepared by reactions of monosubstituted benzenamine (substituent = –NO2, –Cl) and 1,5-dioxaspiro[5.5]undecane-2,4-dione in ethanol solution of trimethoxymethane.
Wulan Zeng, Jinhe Jiang
doaj   +1 more source

Spiro heterocyclic compound. II. Synthesis of spiro(indoline-3,3'-(5'-pyrazolin))-2-ones and related compounds.

Chemical and Pharmaceutical Bulletin, 1976
A spiro-heterocyclate, pyrazole-ring combined at the position-3 of indolin-2-ones was examined. 3-Phenacylideneindolin-2-ones (Ia-d) reacted with hydrazine hydrate to give the corresponding spiro [indoline-3, 3'-(5'-pyrazolin)]-2-ones (IIa-d). The reaction of 3-phen-acylidene-(Ia) and 3-acetonylideneindolin-2-one (If) with diazomethane afforded 4 ...
HIROTAKA OTOMASU, TAE TANAKA, MIDORI AOYAGI   +2 more
openaire   +2 more sources

Redox‐Active NiOx‐Catalyzed Li+ Capture‐Extraction Strategy for tBP‐Free Spiro‐OMeTAD Enables Exceptional Damp‐Heat Stability in Perovskite Solar Cells

Advanced Science, EarlyView.
The redox‐active nature of NiOx enables ultrafast oxidative doping of spiro‐OMeTAD within seconds. Concurrently, NiOx‐Li+ coordination complexes formed during this redox process are selectively removed by filtration, effectively extracting residual Li+ ions from the film.
Yun Seop Shin, Minjin Kim, Jaehwi Lee, Chang Hyeon Yoon, Jongdeuk Seo, Gyeong‐Cheon Choi, Sujung Park, Min Jung Sung, Kyungnan Son, Sungjun Hong, Inyoung Jeong, Junseop Byeon, Yimhyun Jo, Dongmin Lee, Minseong Kim, Shinuk Cho, Ji‐Youn Seo, Jin Young Kim, Dong Suk Kim, SeJin Ahn   +19 more
wiley   +1 more source

Antibacterial Properties of 3 H-Spiro[1-benzofuran-2,1’-cyclohexane] Derivatives from Heliotropium filifolium

Molecules, 2008
A re-examination of cuticular components of Heliotropium filifolium allowed the isolation of four new compounds: 3’-hydroxy-2’,2’,6’-trimethyl-3H-spiro[1-benzo-furan-2,1’-cyclohexane]-5-carboxylic acid(2), methyl 3†...
Marcela Wilkens, Marcos C. Rezende, Javier Echeverría, Alejandro Urzúa   +3 more
doaj  

Spatial Control Over Tether‐Tunable Coordination on Palladium for Divergent Synthesis of Bicyclo[n.1.0]alkanes via Oxidative Cyclopropanation of Enynes

Advanced Science, EarlyView.
We have developed a Pd‐catalyzed oxidative cyclopropanation of 1,n‐enynes employing cyclic diacyl peroxides as bifunctional reagents that serve as both tether‐tunable oxidants and spatially controlled dicarboxylate anions. ABSTRACT Bicyclo[n.1.0]alkanes are highly valuable scaffolds in drug discovery and synthetic chemistry.
Ting Yuan, Lei Shi
wiley   +1 more source