Results 191 to 200 of about 6,998 (264)

Copper(II/III) Redox Couple Enables C─H Methylation via a Radical Mechanism Analogous to SAM Enzymes

Angewandte Chemie, EarlyView.
Biological C–H methylation proceeds through radical pathways mediated by one‐electron redox cofactors, yet no synthetic model has reproduced this reactivity. Here, we report the first isolable Cu(II/III)–methyl complexes that mediate C–H methylation through hydrogen atom transfer and methyl radical rebound.
Emily N. Doss, Curtis E. Moore, Shiyu Zhang   +2 more
wiley   +1 more source

Nucleophilic Gallyl Anions Enable Ga─Au Bimetallic Ammonia Activation

Angewandte Chemie, EarlyView.
Unlocking gallyl nucleophiles: Counterion control enables formation of an unsupported gallyl─gold complex. Gold coordination induces a polarity switch at gallium, enabling cooperative activation of NH3 and related N─H/O─H substrates under mild conditions.
Hellen Videa, Keelan M. Byrne, Tobias Krämer, Antonio J. Martínez‐Martínez   +3 more
wiley   +1 more source

Longitudinal Associations Between Cultural Engagement and Mental and Social Well-Being: A Fixed-Effects Analysis of the English Longitudinal Study of Ageing. [PDF]

J Gerontol B Psychol Sci Soc Sci
Finn S, Bone JK, Fancourt D, Warran K, Mak HW.   +4 more
europepmc   +1 more source

CO2‐to‐CO Electrochemical Conversion With an Fe(I) Porphyrin Complex in Water

Angewandte Chemie, EarlyView.
Using in situ UV–vis/IR spectroelectrochemistry, we track CO2 reduction by a water‐soluble iron porphyrin. Rather than the usual [Fe0] intermediate in organic solvents, CO2 binds the electrogenerated [FeI] species and undergoes reductive C─O cleavage to stable [FeII‐CO]. This previously unexplored reaction pathway is facilitated by an aqueous H‐bonding
Andrew Howe, Aude Salamé, Ulysse Garnier, Marc Robert, Elodie Anxolabéhère‐Mallart, Mun Hon Cheah   +5 more
wiley   +1 more source

Embodied, Exploratory Listening in the Concert Hall. [PDF]

Behav Sci (Basel)
Haswell-Martin R, Upham F, Høffding S, Nielsen N.   +3 more
europepmc   +1 more source

Dyotropic Rearrangement of Hypervalent Iodine Species: Migrative Heterofunctionalization of Quaternary Carbons

Angewandte Chemie, EarlyView.
1,2‐Aryl migration involving in situ‐generated alkyl iodine(III) species proceeds through a previously unrecognized 1,2‐C/I(III) dyotropic rearrangement. Migratory aryl fluorination, acetoxylation, and alkoxylation of 2‐alkyl‐2‐aryl‐3‐iodopropanoates provide α‐heterofunctionalized products, accompanied by aryl migration from the α‐ to the β‐position ...
Chen‐Xu Liu, Qian Wang, Matthew D. Wodrich, Jieping Zhu   +3 more
wiley   +1 more source

Clinical and audiological profile of patients with sudden sensorineural hearing loss after exposure to recreational noise. [PDF]

Braz J Otorhinolaryngol
Soares LFB, de Almeida BL, Teixeira IAS, Maciel MLFL, Monteiro JVL, Martins LM, Scott MCP, Penido NO.   +7 more
europepmc   +1 more source

Chamber choir & concert choir concert

, 2011
Colorado State University. Chamber Choir, producers (managers), Colorado State University. Concert Choir, producers (managers)   +1 more
openaire   +4 more sources

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

Angewandte Chemie, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +1 more source

Hearing Loss in Young Adults: Risk Factors, Mechanisms and Prevention Models. [PDF]

Biomedicines
Fleser RC, Necula V, Ujvary LP, Osman A, Orasan A, Maniu AA.   +5 more
europepmc   +1 more source