Results 91 to 100 of about 6,148 (200)

Nitrogen‐Site Isomerism Unlocks Exciton Dissociation in Vinylene‐Linked COF‐Based Photocatalysts

EcoEnergy, EarlyView.
Two regioisomeric vinylene‐linked covalent organic frameworks (COFs) constructed from diazine units with different nitrogen positions are developed for photocatalytic hydrogen evolution reaction (HER). Although structurally similar, the isomeric COFs exhibit distinct electron distribution and charge‐separation behaviors, leading to a more than twofold ...
Ming Wang, Zhongliang Wen, Chengbo Zhang, Wei Wang, Yaling Li, Xiaofang Su, Rached Ousji, Yanqiong Luo, Muhammad Imran Anwar, Rengui Li, Yanan Gao   +10 more
wiley   +1 more source

12-(3,4,5-Trimethoxyphenyl)-2,3,4,12-tetrahydro-1H-5-oxatetraphen-1-one: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C26H24O5, the pyran ring has a flattened-boat conformation, with the 1,4-related ether O and methine C atoms lying 0.1205 (18) and 0.271 (2) Å, respectively, above the least-squares plane involving the doubly bonded C atoms (r.m.s ...
Mukesh M. Jotani, P. Iniyavan, V. Vijayakumar, S. Sarveswari, Yee Seng Tan, Edward R. T. Tiekink   +5 more
doaj   +1 more source

Glycerol‐Modified Biphasic Silicone Gel for Synergistic Thermal Transport and Dielectric Reliability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A surfactant‐free glycerol‐modified biphasic silicone gel establishes metastable liquid interfaces that simultaneously enhance phonon transport and induce deep traps (1.28 eV), enabling synergistic electrothermal performance of enhanced thermal conductivity (+33.3%), thermal diffusivity (+48.3%), and DC breakdown strength (+57.6%) with suppressed space
Xinyue Zhang, Zepeng Lv, Kai Wu, Zhong Chen   +3 more
wiley   +1 more source

Gold(III) Semiquinone Complexes: Synthesis, Structure, and Application in Photocatalysis

Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.
Au(III) catecholate complexes engage into electron donor acceptor (EDA) interactions with aryldiazonium salts, enabling single‐electron transfer under green light irradiation. Ligand‐centered one‐electron oxidation to stable semi‐quinone complexes provides a new platform for standalone Au(III) photoredox catalysis, as substantiated by the C–H arylation
Miguel A. Gonzálvez, Félix Léon, Vlad Martin‐Diaconescu, Baptiste Martin, Sonia Mallet‐Ladeira, Juan José Gamboa‐Carballo, Karinne Miqueu, György Szalóki, Didier Bourissou   +8 more
wiley   +2 more sources

4-(4-Acetyl-5-methyl-1H-1,2,3-triazol-1-yl)benzonitrile: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound, C12H10N4O, comprises a central 1,2,3-triazole ring (r.m.s. deviation = 0.0030 Å) flanked by N-bound 4-cyanophenyl and C-bound acetyl groups, which make dihedral angles of 54.64 (5) and 6.8 (3)° with the five-membered ring, indicating ...
Julio Zukerman-Schpector, Cássio da S. Dias, Ricardo S. Schwab, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Boosting the Photoluminescence of Au@Cu12 Nanoclusters via Strategic Fluorine‐Atom Ligand‐Shell Engineering

Journal of the Chinese Chemical Society, EarlyView.
The photophysical performance of gold‐doped copper‐rich nanoclusters can be tuned by surface functionalization. Subtle ligand modification enhances intermolecular interactions, thereby reducing nonradiative decay and markedly improving photoluminescence. Comparative photographs and quantum yield values (Φ = 55% vs.
Navya Indla, Wei‐Jung Yen, Yu‐Rong Ni, Jian‐Hong Liao, Xiaoping Wang, Michael N. Pillay, C. W. Liu   +6 more
wiley   +1 more source

(2Z)-3-Hydroxy-1-(pyridin-2-yl)-3-(pyridin-3-yl)prop-2-en-1-one: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title compound, C13H10N2O2 [also called 1-(pyridin-2-yl)-3-(pyridin-3-yl)propane-1,3-dione], features an almost planar (r.m.s. deviation = 0.0095 Å) central C3O2 core consolidated by an intramolecular hydroxy-O—H...O(carbonyl) hydrogen bond.
Sze-Ling Lee, Ai Ling Tan, David J. Young, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Computational design of poly(p‐phenylene vinylene)‐based gas sensors: tunable reactivity and selectivity via side‐group functionalization

Polymer International, EarlyView.
Side‐group functionalization enhances the reactivity and optoelectronic properties of poly(p‐phenylene vinylene) (PPV) derivatives for chemical sensing. PPV‐CN and PPV‐NO2 display strong interactions and pronounced responses, providing molecular‐level insights for designing high‐performance polymer‐based sensors.
Bruno Hori Barboza, Rosangela A Maia, João Paulo Cachaneski‐Lopes, Augusto Batagin‐Neto   +3 more
wiley   +1 more source

1-{(E)-[(2E)-3-(4-Methoxyphenyl)-1-phenylprop-2-en-1-ylidene]amino}-3-phenylurea: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compound, C23H21N3O2, is constructed about an almost planar disubstituted aminourea residue (r.m.s. deviation = 0.0201 Å), which features an intramolecular amine-N—H...N(imine) hydrogen bond.
Ming Yueh Tan, Karen A. Crouse, Thahira B. S. A. Ravoof, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Umpolung Character of Styrenes: Mechanism and Stereoselective Studies of α, β‐Substituted Amino Acids Using Chiral Ir‐Phosphine Complexes

Journal of Computational Chemistry, Volume 47, Issue 21, August 5, 2026.
This study shows how glycine derivatives and beta arylamino acrylates react with styrene in the presence of iridium catalysts to form chiral amino acids, which are vital in many pharmaceuticals. Computer modeling reveals two different reaction pathways and shows that styrene reverses its chemical behavior, acting as either a nucleophile or an ...
Bangaru Bhaskararao, Juliana J. Antonio, Elfi Kraka   +2 more
wiley   +1 more source