Results 71 to 80 of about 46,950 (308)

Rhodium-Catalyzed Asymmetric Alcoholysis and Aminolysis of Oxabenzonorbornadiene:  A New Enantioselective Carbon−Heteroatom Bond Forming Process

, 2016
Rhodium-Catalyzed Asymmetric Alcoholysis and Aminolysis of Oxabenzonorbornadiene:  A New Enantioselective Carbon−Heteroatom Bond Forming ...
Mark Lautens (1391935), Tomislav Rovis (1308306), Keith Fagnou (2029873)   +2 more
core   +2 more sources

Rhodium-Catalyzed Isomerization and Alkyne Exchange Reactions of 1,4-Dithiins via the 1,2-Ethenedithiolato Rhodium Complex

, 2018
Rhodium-catalyzed isomerization and alkyne exchange reactions of 1,4-dithiines occurred by cleavage of two C–S bonds. The 2,5- and 2,6-disubstituted 1,4-dithiins underwent isomerization reactions in toluene at 110 °C, providing equilibrium mixtures of ...
Masahiko Yamaguchi (801411), Mieko Arisawa, Masahiko Yamaguchi, Mieko Arisawa (2032981), Takuya Ichikawa, Kyosuke Sawahata, Kyosuke Sawahata (4836003), Takuya Ichikawa (2032984)   +7 more
core   +1 more source

Facile Preparation of Carbon Membranes Derived from a Fluorenyl‐Containing Polyimine for Selective Hydrogen Separation

Advanced Functional Materials, EarlyView.
A fluorenyl‐containing polyimine is introduced as a simple, scalable precursor for high‐performance carbon membranes. The precursor's intrinsic kinked structure enables defect‐free membrane formation with enhanced hydrogen permeance and excellent ideal selectivities for key industrial gas pairs (H2/N2, H2/CH4, and H2/CO2), offering a practical route ...
Clara Coiana, Christos Pantazidis, Ankita Mandal, Maarten Bransen, Fausto Gallucci, Željko Tomović   +5 more
wiley   +1 more source

Rhodium-Catalyzed Tandem Isomerization–Allylation: From Diallyl Carbonates to α‑Quaternary Aldehydes

, 2019
We report a Rh-catalyzed tandem isomerization–allylation sequence for the generation of α-quaternary aldehydes, starting from unsymmetrical diallyl carbonates.
Jeanne Masson-Makdissi (3188688), Mark S. Taylor (611990), Mark Lautens (1391935), Liher Prieto (3757090), Young Jin Jang (8038301)   +4 more
core   +1 more source

Rhodium-Catalyzed Regioselective Double Annulation of Enaminones with Propargyl Alcohols: Rapid Access to Arylnapthalene Lignan Derivatives

, 2021
We present here a rhodium-catalyzed oxidative three-point double annulation of enaminones with propargylic alcohols via a C–H and a C–N bond activation to access arylnaphthalene-based lignan derivatives. The key step in the reaction is the regioselective
Maddi Sridhar Reddy, Ramesh Kotipalli (11886191), Jagadeesh Babu Nanubolu, Dattatri, Attunuri Nagireddy, Ramesh Kotipalli, Jagadeesh Babu Nanubolu (567973), Maddi Sridhar Reddy (1457059), Attunuri Nagireddy (8891462), Dattatri (11886188)   +9 more
core   +1 more source

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

Rhodium-Catalyzed Highly Regioselective and Stereoselective Intermolecular Hydrosilylation of Internal Ynamides under Mild Conditions

, 2018
A rhodium-catalyzed highly regio- and stereoselective intermolecular hydrosilylation of internal ynamides has been developed. With the neutral rhodium complex [Rh­(CO)2Cl]2 as a catalyst and the bulky silanes as reactants, various ynamides underwent ...
Lingyue Chen (5209187), Ming Li (91180), Yubin Zheng (5209184), Nan Zheng (181198), Wangze Song (1508695), Tiexin Zhang (2325250)   +5 more
core   +2 more sources

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

Comparison Of The MWCNTs-Rh And MWCNTs-Re Carbon-Metal Nanocomposites Obtained In High-Temperature

Archives of Metallurgy and Materials, 2015
Carbon-metal nanocomposites consisting of multiwalled carbon nanotubes coated with rhodium or rhenium nanoparticles by the high-temperature method were fabricated during the research undertaken.
Dobrzańska-Danikiewicz A.D., Łukowiec D., Cichocki D., Wolany W.   +3 more
doaj   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source