Results 231 to 240 of about 241,984 (318)

Concordant Mode Approach (CMA): Vibrational Analysis of New and Upgraded Intermolecular Benchmarks for Noncovalent Bonding. [PDF]

J Phys Chem A
Dornshuld LNO, Lahm ME, Kitzmiller NL, Allen WD, Schaefer HF.   +4 more
europepmc   +1 more source

Catalyst Hide‐and‐Seek Beneath Porous Support Surfaces: Pinpointing Active Site Distribution Through Resonance Energy Transfer

Angewandte Chemie, EarlyView.
Like a shark playing hide‐and‐seek in a coral reef, energy transfer (ET) finds hidden “fish” catalysts in the porous support “reef.” ET allows catalytic species to be precisely mapped, revealing whether they reside near the surface, deep in the pores, or are uniformly distributed. This approach ensures controlled catalyst distribution, highlighting how
Buddhima K. P. Maldeni Kankanamalage, William J. Thompson, Danielle N. Smith, Grace C. Thaggard, Namodhi Wijerathne, Isabella Incognito, Jeffery A. Byers, Jia Niu, Natalia B. Shustova   +8 more
wiley   +1 more source

Substituent-induced oxidation-reduction molecular organic junction for interfacial hydrogen peroxide photosynthesis. [PDF]

Nat Commun
Li Z, An L, Guan L, Yang J, Yin R, Jin S, Zhu M, Qin J.   +7 more
europepmc   +1 more source

Selective Nitrate Transmembrane Transport Through Adaptive Weak C─H Bonding Cyanostilbene Water Channels

Angewandte Chemie, EarlyView.
Here we demonstrate that weak HB CH donor cyanostilbenes promote water/ion transport through their ability to form less‐ordered transient water channels within the lipid bilayer with increased water permeability and NO3−/ Cl− selectivity. ABSTRACT Transmembrane water transport strongly depends on how dynamic, translocating water clusters are stabilized
Ioan Stroia, Dan‐Dan Su, Yuhao Li, Niculina Hadade, Ion Grosu, Arie van der Lee, Mihail Barboiu   +6 more
wiley   +1 more source

Pyridine C─N Transposition via Cycloaddition–Cycloreversion

Angewandte Chemie, EarlyView.
Transposition of pyridine nitrogen from the 4‐ to the 3‐position is described using two open and shut sequences: a nucleophile addition ring‐open ring‐closure, followed by a nitrile Diels–Alder cycloaddition cycloreversion. The nitrogen swap is particularly effective for tertiary alkyl substituents, transforming easily accessible para‐alkylated ...
Aífe Conboy, Michael F. Greaney
wiley   +1 more source

Associations between ambient exposure to styrene, benzene, toluene, ethylbenzene, and xylenes and hospitalizations in the US Gulf region. [PDF]

Environ Res
Choi Y, Wang CT, Warren JL, Woo JH, Engel LS, Baek BH, Bell ML.   +6 more
europepmc   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +1 more source

Indoor and outdoor air pollutants concentrations at preschools in Melusi informal settlement, Pretoria, South Africa. [PDF]

Discov Public Health
Bhuda M, Malatji KD, Nchabeleng MS, Shirinde J.   +3 more
europepmc   +1 more source

Isolation of a Highly Reactive CBNC Heterocumulene via Azidoborylene Photolysis: Facile Access to a Crystalline Dioxaborirane

Angewandte Chemie, EarlyView.
Azidoborylene photolysis results in the isolation of a reactive C═B═N═C heterocumulene bearing an ambiphilic boron centre. Addition of 3O2 to this species results in the clean conversion to a unique example of a dioxaborirane. ABSTRACT Oxidation of the formal boron(0) complex MeCAAC2B in the presence of tetrabutylammonium azide leads to the formation ...
Hayley King, Vignesh Pattathil, William Kennedy, Robert K. Szilagyi, Conor Pranckevicius   +4 more
wiley   +1 more source

Determination of Eight Benzene Homologs in Ambient Air and Indoor Air in Residential Areas by Secondary Thermal Desorption-Gas Chromatography. [PDF]

Int J Anal Chem
Liu T, Yuan X, Yang T, Yang C, Zhao H, Jiang J, Feng J.   +6 more
europepmc   +1 more source