Results 121 to 130 of about 599,586 (355)

Elucidating the Fe(III) Directed 15‐Step Domino Inter‐ and Intramolecular Progressive Coordinative Oligomerization of a Heterocycle Aggregate

open access: yesAggregate, EarlyView.
A domino reaction leading to the novel heterocyclic aggregate 2,9‐dihydrobenzo[b]cyclopenta[e][1,4]thiazine has been developed, with its mechanism elucidated by crystallography and ESI‐MS to reveal a 15‐step reaction sequence (the longest reported to date) involving intermolecular C‐C coupling and intramolecular expansion.
Kai‐Bin Chen   +9 more
wiley   +1 more source

Engineering a Meltable MOF to Tune Liquid Transition and Promote Coenzyme Regeneration

open access: yesAngewandte Chemie, EarlyView.
Through a liquid–liquid transition process, a bimetallic glassy MOF is fabricated. It has exceptional glass‐forming properties, evenly distributed bimetallic ions, and a markedly higher visible‐light‐driven photogeneration efficiency of enzymatically active NADH.
Wengang Huang   +15 more
wiley   +2 more sources

Adverse Cardiovascular Risk Profile and Increased Diurnal Salivary Cortisol in Girls With Turner Syndrome: An Exploratory Study

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Patients with Turner Syndrome (TS) and those exposed to high concentrations of glucocorticoids have a number of characteristics in common, including an increased risk of cardiovascular disease. Pediatric TS patients underwent studies of salivary cortisol (SC) and cortisone (SCn), body composition, continuous glucose monitoring, vascular ...
Lily Jones   +6 more
wiley   +1 more source

Structural Origin of Spin‐Orbit Splitting of 1P Orbitals of Icosahedral Au13 Superatom Protected by Ligands

open access: yesAngewandte Chemie, EarlyView.
The spin‐orbit (SO) splitting of the superatomic 1P orbitals in thiolate‐protected Au13 superatoms were investigated. Cryogenic anion photoelectron spectroscopy and fully relativistic calculation including SO coupling revealed the 1P orbitals of the Au13 and Au@Ag12 superatomic cores undergo SO splitting, while not in the Ag13 core.
Shun Ito   +2 more
wiley   +2 more sources

Deuterium exchange of α‐helices and β‐sheets as monitored by electrospray ionization mass spectrometry

open access: green, 1994
David S. Wagner   +4 more
openalex   +1 more source

Photo‐ and Electroluminescence of N,N‐Diphenylaminophenyl–Quinoxaline Donor–Acceptor‐Type Dyes: Electronic Impacts of Electron‐Withdrawing Ability of the Acceptor Unit

open access: yesAsian Journal of Organic Chemistry, EarlyView.
Compact N,N‐diphenylaminophenyl–quinoxaline donor–acceptor‐type dyes were synthesized, and the effects of substituents on the fluorescence properties were investigated. Introduction of electron‐withdrawing groups to the quinoxaline acceptor caused a red shift of the emission, and furthermore, thermally activated delayed fluorescence was facilitated by ...
Masaki Nagaoka   +6 more
wiley   +1 more source

Evidence for Methylaluminoxane (MAO) Molecular Structure and Reactivity from Ultrahigh Magnetic Field 27Al MAS NMR Spectroscopy Combined with DFT Calculations

open access: yesAngewandte Chemie, EarlyView.
The molecular structure of olefin polymerization activator methylaluminoxane (MAO) was probed using ultrahigh field solid‐state NMR backed with DFT calculations, revealing its key motifs and reactive centers. Abstract The structure and reactivity of methylaluminoxane (MAO), a reagent of major interest for olefin polymerization, both industrially and ...
Kai Szeto   +8 more
wiley   +2 more sources

High spatial resolution imaging of biological tissues using nanospray desorption electrospray ionization mass spectrometry

open access: yesNature Protocols, 2019
Ruichuan Yin   +4 more
semanticscholar   +1 more source

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