Results 51 to 60 of about 2,183 (174)

Unimolecular Solvolyses in Ionic Liquid: Alcohol Dual Solvent Systems

Molecules, 2016
A study was undertaken of the solvolysis of pivaloyl triflate in a variety of ionic liquid:alcohol solvent mixtures. The solvolysis is a kΔ process (i.e., a process in which ionization occurs with rearrangement), and the resulting rearranged carbocation ...
Elizabeth D. Kochly, Nicole Jean Lemon, Anne Marie Deh-Lee   +2 more
doaj   +1 more source

Counter‐ion modulation: A facile approach toward quenching‐resistant multi‐resonance emitters for efficient narrowband electroluminescence

FlexMat, EarlyView.
Quenching‐resistant carbocation‐based multi‐resonance emitters are developed via a facile counter‐ion modulation strategy, giving much narrowed emission bands under high doping concentrations, and greatly improved device efficiency for solution‐processed narrowband OLEDs by simply increasing the size of counter ions.
Tao Li, Guimin Zhao, Yuanyuan Li, Zhihua Ma, Zhicai Chen, Fangfang Huang, Ronghao Yang, Wei Jiang, Xin Ai, Shiyang Shao   +9 more
wiley   +1 more source

Recent advances and prospects for high‐efficiency blue hot exciton organic light‐emitting diodes

FlexMat, EarlyView.
Blue organic light‐emitting diodes (OLEDs) face great challenges in achieving the balance between color purity, device efficiency, and stability. Hot exciton materials offer a solution by rapidly converting non‐emissive triplet excitons into singlet ones through a high‐lying reverse intersystem crossing process.
Xiaoen Shi, Shuyuan Ge, Futong Liu, Ping Lu   +3 more
wiley   +1 more source

Tailoring hot‐exciton emitter via an accelerated reverse intersystem crossing process for deep‐blue organic light‐emitting diodes with an external quantum efficiency approaching 16% at 1000 cd m−2 and a CIEy of 0.027

FlexMat, EarlyView.
A tailor‐made deep‐blue emitter with an accelerated process with a rate of 4.4 × 109 s−1 achieves a deep‐blue organic light‐emitting diodes with external quantum efficiency of 15.7% at a practical brightness of 1000 cd m−2 with an extremely small CIEy coordinate of 0.027. Abstract Achieving high‐efficiency, saturated‐color, and stable deep‐blue organic
Jingli Lou, Baoxi Li, Yichao Chen, Han Zhang, Dezhi Yang, Ben Zhong Tang, Zhiming Wang   +6 more
wiley   +1 more source

Conjugation‐Length Dependent Interplay Between Charge Transfer and Locally Excited States in Sequence‐Defined Donor–Acceptor Substituted Oligo(Phenylene Ethynylene)s

Macromolecular Rapid Communications, EarlyView.
Iterative synthesis gives access to sequence‐defined oligo(para‐phenylene ethynylene)s, bridging donor and acceptor units through stepwise extension of the conjugated backbone. Accurate length control enables systematic structure‐property relationship investigations across absorption, emission, and excited‐state dynamics.
Qianyu Cai, Till Paha, Marianne Armbruster, André Jung, Eli Zysman‐Colman, Andreas‐Neil Unterreiner, Michael A. R. Meier   +6 more
wiley   +1 more source

Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane

Journal of Polymer Science, EarlyView.
Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello, Lucas Repecka Alves, Guilherme Manassés Pegoraro, Henrique Solowej Medeiros Lopes, Amanda Stefanie Jabur de Assis, Thaís de Agrella Janolla, David Rodrigues Gomes, Diego Aleixo da Silva, Beatriz Merillas, Fabiana Aparecida Lobo, Fabio Minoru Yamaji, Maira de Lourdes Rezende, Aparecido Junior de Menezes, Giovanni Pimenta Mambrini   +13 more
wiley   +1 more source

A Serum‐Resistant Plasma Membrane Probe for Real‐Time Visualization of Pathogen‐Induced Epithelial Barrier Dysfunction

Small, EarlyView.
PM580 selectively activates at the plasma membrane while remaining minimally responsive to serum albumin, enabling serum‐compatible, surface‐confined imaging for 24 h, unlike conventional probes that rapidly internalize and lose membrane contrast.
Yujeong Choi, Sunhwa Jung, Dong Min Kang, Lizaveta Gotina, Minji Kim, Eunmi Ha, Sungsu Lim, Ae Nim Pae, Jaeson Jang, Evgeni Ponimaskin, Ja‐Hyun Baik, Sun‐Joon Min, Yun Kyung Kim   +12 more
wiley   +1 more source

Facile one‐step synthesis of efficient hybridized local and charge transfer emitter for ultraviolet electroluminescence with low roll‐off

Smart Molecules, EarlyView.
An effective hybridized local and charge‐transfer emitter D3CZ4F featuring multiple C–H⋯F locking interactions was developed, achieving an outstanding EQE of 8.97%, a small roll‐off, an emission peak at 388 nm, and color coordinates of (0.165, 0.025), respectively.
Shengnan Wang, Jixiang Wang, Danyu Xie, Ling Peng, Yuchao Liu, Junjie Wang, Shian Ying, Dongge Ma, Shouke Yan   +8 more
wiley   +1 more source

Exploring solvatochromism: a comprehensive analysis of research data of the solvent -solute interactions of 4-nitro-2-cyano-azo benzene-meta toluidine

BMC Chemistry
This study investigates the solvatochromic behavior of a new D1 disperse dye, focusing on the 4-nitro-2-cyano-azo-Benzene-metaToluidine type. Using UV-visible spectroscopy, we analyze the dye’s performance in single solvents and binary mixtures.
Mahdi Shirali, Shohre Rouhani, Kamaladin Gharanjig, Fatemeh Mirhashemi   +3 more
doaj   +1 more source

Modelling the Preferential Solvation of Ferulic Acid in {2-Propanol (1) + Water (2)} Mixtures at 298.15 K

Pharmaceutical Sciences, 2017
Background: Recently Haq et al. reported the equilibrium solubility in {2-propanol (1) + water (2)} mixtures at several temperatures with some numerical correlation analysis.
Abolghasem Jouyban 1,2, Fleming Martínez 3 *
doaj   +1 more source