Results 101 to 110 of about 52,437 (280)

Structural Dependence of Catenand Effect: Thermodynamic and Kinetic Modulation of Catenane Coordination Properties via Ring‐size and Exocyclic Substituent Variation

open access: yesAngewandte Chemie, EarlyView.
By modifying ring size and exocyclic substituents, effects of ligand interlocking on metal coordination features is explored. Through systematic analysis of CuI catenanes, relationship between structural parameters of the interlocked ligands and coordination properties like geometry, stability, and reactivity is established.
Yulin Deng   +8 more
wiley   +2 more sources

Synthesis, characterization and thermogravimetric study of Cu(II) adducts with 3- and 4-amino-1,2,4-triazole, 2-mercaptothiazoline and 2-mercaptopyridine [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The adducts CuCl2·(3amt), CuCl2·2(3amt)·2H2O, CuCl2·3(3amt), CuCl2·(4amt), CuCl2·2(4amt), CuCl2·3(4amt)·2H2O, CuCl2·(2mct)·H2O, CuCl2·2(2mct)·2.5H2O, CuCl2·3(2mct)·2H2O, CuCl2·(2mcp) and CuCl2·2(2mcp)·H2O, where 3-amino-1,2,4-triazole = 3amt, 4-amino-1,2,
MOAMEN S. REFAT, ROBSON F. DE FARIAS
doaj  

Advancements in Graphdiyne‐Based Multiscale Catalysts for Green Hydrogen Energy Conversion

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review systematically explores the fundamental characteristics of graphdiyne (GDY), cutting‐edge field of GDY‐based multiscale catalysts within sustainable energy conversion systems.Special emphasis is placed on the structure‒property relationships in different reactions.
Qian Xiao, Lu Qi, Siao Chen, Yurui Xue
wiley   +1 more source

Electrochemical ⍺‐C─H Functionalization of Nitramines for Accessing Bifunctional Energetic Heterocycles

open access: yesAngewandte Chemie, EarlyView.
An electrochemical α‐C─H functionalization of nitramines enables the synthesis of molecules containing bifunctional energetic heterocycles with promising properties. A telescoped, HNO3‐free sequence involving nitration and azolation steps offers a safer, modular, and scalable platform for the synthesis of energetic compounds.
Wan‐Chen Cindy Lee   +4 more
wiley   +2 more sources

Stereoselective Synthesis of Alkenyl Fluorides and Alkynes by Defluoro Coupling of Trifluoromethyl Arenes

open access: yesAngewandte Chemie, EarlyView.
A practical, stereoselective method for synthesizing tri‐ and tetra‐substituted 1,2‐fluoro‐borylalkenes and alkynes via defluorinative C–C coupling of CF3–arenes with organodiboron reagents is reported. Enabled by a Lewis base activator, products are formed in up to 94% yield and >98:2 Z/E selectivity.
José L. Rosario‐Collazo   +3 more
wiley   +2 more sources

Arene‐Ruthenium(II)‐Carboxylate für C–H‐Alkylierungen und Arylierungen bei Annährend Raumtemperatur

open access: yesAngewandte Chemie, EarlyView.
Es wurde vermutet, dass die Aktivität von Aren‐Ruthenium‐Katalysatoren bei der C–H‐Aktivierung von hohen Reaktionstemperaturen abhängt. Im Gegensatz dazu zeigen wir eine Aren‐Ruthenium‐katalysierte C–H‐Aktivierung bei annährender Raumtemperatur. Zusammenfassung Das langjährige Streben nach effizienteren Katalysatoren hat die Entwicklung von C–H ...
Xiaoyan Hou   +4 more
wiley   +1 more source

Spatial Assembly of Mechanically Planar Chiral Rotaxanes on Rationally Designed Cavitands

open access: yesAngewandte Chemie, EarlyView.
A spatial molecular assembly strategy enables the synthesis of enantioenriched mechanically planar chiral rotaxanes. Inherently chiral cavitands are rationally designed to encode and transmit the stereochemical information. Predictable stereochemical induction is achieved by controlling the spatial arrangement of molecular components through ...
Liwen Xia   +3 more
wiley   +2 more sources

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