Results 81 to 90 of about 1,117,391 (197)

The synthesis and fluorescence properties of novel chromenone-crown ethers

, 2010
o-Dihyroxy-3-phenylchromenone derivatives, namely, 6,7-dihydroxy-3-(3',4'-dimethoxyphenyl)chromenone and 6,7-dimethoxy-3-(3',4'-dihydroxyphenyl)chromenone, were obtained from 2,4,5-trihydroxybenzaldehyde/3,4-dimethoxyphenylacetic acid
SALAN, ÜMİT
core   +2 more sources

Phosphate Monoester Hydrolysis by Supramolecular Phosphatases Functionalized with Lewis Acidic Moieties in Two-Phase Solvent Systems

Organics
Protein phosphorylation and dephosphorylation reactions of intracellular molecules catalyzed by enzymes such as kinases and phosphatases are essential reactions in a lot of cellular functions such as intracellular signal transduction in living systems ...
Hirokazu Okamoto, Ayane Nomoto, Dahiru Umar Liman, Akib Bin Rahman, Toshifumi Tojo, Shin Aoki   +5 more
doaj   +1 more source

Synthesis of functionalized crown ethers and cation complexation by crown ethers

, 1983
Several crown ethers with pendant ionizable groups such as carboxylic and phosphonic groups were synthesized from corresponding hydroxy crown ethers. Efficient and inexpensive synthetic methods were developed to produce diphenols directly from catechol ...
Heo, Gwi Suk
core  

Thiolate Salt Mediated Dynamic Silyl Ether Exchanges for Polymer Network Design and Deconstruction

Macromolecular Rapid Communications, EarlyView.
This work introduces thiolate salts as mediators for dynamic silyl ether exchange. This platform enables the synthesis of reprocessable covalent adaptable polymer networks (CANs) and allows for sterically controlled, and tunable deconstruction of silyl ether‐containing thermosets.
Pierce T. Bombard, Andrew D. Vargo, Henry P. Chesley‐Vogels, Georgios Tarasidis, Elise C. Desjarlais, Truman K. Sandy, Harry E. Touloukian, Dmytro Davydenko, Jennifer C. Vo, Bassil M. El‐Zaatari   +9 more
wiley   +1 more source

Conjugated Polymers Engineered for Flexible/Stretchable Electronics

Journal of Polymer Science, EarlyView.
This review highlights glass transition temperature (Tg) as the central parameter linking molecular structure to device performance in conjugated polymers. By tuning backbone rigidity, side‐chain architecture, and dynamic bonding, Tg governs the balance between π–π stacking–enabled charge transport and mechanical compliance.
Yunchong Yang, Josh Bass, Weijia Yan, Ashwath Anand, Chunka Zhou, Jingjing Qiu   +5 more
wiley   +1 more source

White light emitting molecular logic gates

Smart Molecules, EarlyView.
White light emitting smart molecules with Boolean logic computing ability are surveyed. Abstract White light emitting (WLE) materials are of considerable interest with commercial and societal applications in video displays and lighting devices. A characteristic property of WLE materials is the luminescence profile spanning from 380 to 700 nm.
Davide Benedetto Tiz, Massimo Catania, David C. Magri   +2 more
wiley   +1 more source

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Charge Transfer in Some Complexes of Crown Ether and of Thiacrown Ether with Dihalogens: DFT Study

Acta Chimica Slovenica, 2014
The present study was carried out by focusing on the interaction between molecular complexes crown and thiacrown ethers such as 15-crown-5 (15C5), thia-15-crown-5 (T15C5), dithia-15-crown-5 (DT15C5) with homogeneous and heterogeneous dihalogens (XY ...
Mohsen Oftadeh, Ali Kabiri
doaj  

Diaminocarbene complexes containing crown ether

, 2002
vn ÖZET TAÇ ETER İÇEREN DİAMİNAKARBEN KOMPLEKSLERİ OCAKOĞLU, Kasım Yüksek Lisans Tezi, Kimya Bölümü Tez Yöneticisi : Prof. Dr. Bekir ÇETÎNKAYA Eylül 2002, 69 sayfa Bu çaslışmada benzo-15-taç-5 den çıkılarak taç eter içeren iki yeni imidazolidin-2-iliden kompleksi sentezlenmiştir.
openaire   +2 more sources

Understanding the Dynamics of Mechanically Interlocked Molecular Systems via Metadynamics Simulations

The Chemical Record, EarlyView.
This Personal Account discusses how molecular simulations help uncover motion, shuttling mechanisms, and kinetics in mechanically interlocked molecules such as rotaxanes and catenanes. Mechanically interlocked molecules, such as rotaxanes and catenanes, display complex internal dynamics and reciprocal motions that are central to their use as artificial
Clara Sabrià, Luigi Leanza, Massimo Delle Piane, Max von Delius, Ferran Feixas, Xavi Ribas, Giovanni M. Pavan   +6 more
wiley   +1 more source