Results 41 to 50 of about 3,044 (143)
The Nonadiabatic Nature of the Substituent Effects in Azobenzene
Angewandte Chemie International Edition, Volume 65, Issue 14, 27 March 2026.Unified nonadiabatic switching: thermal Z→E isomerization of para‐substituted azobenzenes proceeds through a single nonadiabatic rotational pathway. The iconic bell‐shaped Hammett plot is a σp artifact, not a reflection of a mechanistic change, exposing the limits of single‐reference density functional theory (DFT) and establishing activation entropy ...
Jacob Jan van der Wal +4 more
wiley +1 more source
Redox-dependent conformational switching of diphenylacetylenes [PDF]
, 2014 Herein we describe the design and synthesis of a redox-dependent single-molecule switch. Appending a ferrocene unit to a diphenylacetylene scaffold gives a redox-sensitive handle, which undergoes reversible one-electron oxidation, as demonstrated by ...
Hamilton, Andrew D. +4 more
core +2 more sources
Chemistry – A European Journal, Volume 32, Issue 10, 9 March 2026.It is a challenge to improve the selectivity of high‐denticity ligands for Mg2+ over Ca2+. We show that in aryl‐alkynyl derivatives of APTRA, electron‐withdrawing substituents lower the binding affinity for Ca2+ more than Mg2+, making the ligand more selective for Mg2+.
Laura L. Duncan +2 more
wiley +1 more source
Micellar effects on aromatic esters hydrolysis [PDF]
, 2014 The alkaline hydrolysis of two aromatic esters, 2-naphthyl acetate (2NA) and phenyl acetate (PhA) has been tackled in this work. The reaction has been followed in water and in the presence of cationic surfactants with different chain lengths ...
Brandariz, Isabel, Iglesias, Emilia
core +2 more sources
European Journal of Organic Chemistry, Volume 29, Issue 9, 2 March 2026.The combination of Suzuki and Buchwald–Hartwig coupling in (pseudo‐)four‐component reactions paves an efficient one‐pot route to twisted, redox‐active triarylamine (TAA) emitters. Biaryl substitution patterns and para‐substituents serve as key levers for tuning redox potentials, as well as absorption and emission energies, complemented and, by time ...
Regina Kohlbecher +5 more
wiley +1 more source
Highly cytotoxic trithiophenolatodiruthenium complexes of the type [(η6- p -MeC6H4Pr i )2Ru2(SC6H4- p -X)3]+: synthesis, molecular structure, electrochemistry, cytotoxicity, and glutathione oxidation potential [PDF]
, 2018 A series of cationic dinuclear p-cymene ruthenium trithiophenolato complexes of the type [(η6-p-MeC6H4Pr i )2Ru2(SC6H4-p-X)3]+ (1 Xis H, 2 Xis Me, 3 Xis Ph, 4 Xis Br, 5 Xis OH, 6 Xis NO2, 7 Xis OMe, 8 Xis CF3, 9 Xis F, 10 Xis Pr i , 11 Xis Bu t ) have ...
Baquie, Mathurin +8 more
core
Kinetic and mechanistic studies of Pd-catalyzed amination of aryl halides
, 2009 The Pd-catalyzed amination of aryl halides (Buchwald-Hartwig amination) has become a versatile and widely used technology to synthesize and produce aromatic amines relevant in pharmaceutical and agrochemical industries.
Ferretti, Antonio, Ferretti, Antonio
core +1 more source
From 2,3-Diazabicyclo[2.2.2]oct-2-ene to Fluorazophore-L, a membrane-bound fluorescent probe for antioxidants [PDF]
, 2004 The aim of this work was to synthesize and to establish a new fluorescent membrane probe for antioxidants by exploiting the exceptional properties of the long-lived fluorophore 2,3-diazabicyclo[2.2.2]oct-2-ene (DBO) alias Fluorazophore-P.
Gramlich, Gabriela
core +1 more source
ChemistryEurope, Volume 4, Issue 3, March 2026.Twelve donor–aniline–thiophene–acceptor chromophores with varying acceptor moieties were synthesized via consecutive lithiation–borylation‐Suzuki‐coupling sequence as potential hybridized localized and charge transfer (HLCT) dyes. Cyclic voltammetry measurements reveal one or two reversible oxidation processes with thermodynamic stability of radical ...
Oliver M. Schützdeller‐Wittek +1 more
wiley +1 more source
T‐Shaped 8‐Aryl(ethynyl)‐Substituted Psoralens With Tunable Charge‐Transfer Absorption
European Journal of Organic Chemistry, Volume 29, Issue 8, 25 February 2026.Starting from 8‐methoxypsoralen, new 8‐arylated and 8‐alkynylated psoralen derivatives are accessible by cross‐coupling. These T‐shaped π‐expanded chromophores are luminescent and photophysics reveal a highly polar excited state with tunable charge‐transfer character.
Lena T. Leusch, Thomas J. J. Müller
wiley +1 more source