Results 51 to 60 of about 894 (176)

Impacts of Fluorination at the Ortho‐Position of Carboxy Groups on Tetrakis(biphenyl)ethene‐Based Hydrogen‐Bonded Framework

Small, EarlyView.
This work provides new findings on the effect of fluorination on the substitution of TPE derivatives and the modulation of the structure and fluorescence properties of hydrogen‐bonded organic framework (HOF) of F‐CBPE. ABSTRACT Fluorination of building block molecules is one of the effective engineering approaches to modulate molecular assembly in ...
Takuto Fujii, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Ken‐ichi Otake, Kazuki Shiga, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki   +8 more
wiley   +1 more source

Effect of molecular perturbation on cocrystal formation: theophylline and its 8‐halo analogues with flavonoids

Acta Crystallographica Section C, Volume 82, Issue 8, Page 414-426, August 2026.
The tendency for alkaloid–flavonoid cocrystal formation is found to be markedly different for theophylline (Tph) compared to its 8‐halo analogues. Through screening with 13 common flavonoids, Tph is found to form cocrystals with six flavonoids, whereas 8‐Cl‐Tph and 8‐Br‐Tph each form cocrystals with just two, myricetin and kaempferol.
Weijian Ye, Herman H-Y. Sung, Ian D. Williams   +2 more
wiley   +1 more source

Supramolecular assemblies of copper(II) complexes: supramolecular synthon transferability and magnetic properties [PDF]

Acta Crystallographica Section A Foundations and Advances, 2019
In the pursuit of new technologies there is exigency for novel materials with desired physical and chemical properties. Despite the fact that metal-based crystalline solids provide an access to properties that are typically unavailable or difficult to achieve in metal-free settings (i.e. magnetic or optical).
Borovina, Mladen, Pajić, Damir, Đaković, Marijana, Penić, Nikolina   +3 more
openaire   +3 more sources

Safracin B as a Synthetic Linchpin: From Natural Product to Drug Intermediate and Beyond

European Journal of Organic Chemistry, Volume 29, Issue 27, 17 July 2026.
Safracin B is employed as a key precursor for the streamlined preparation of cyanosafracin B and safracin A. Careful tuning of the reaction parameters affords these derivatives in high efficiency, and full nuclear magnetic resonance signal assignments are established for the complex safracin frameworks.
Paolo Orlando, Simone Borsoi, Valerio Fasano, Andrea Citarella, Pietro Allegrini, Daniele Passarella   +5 more
wiley   +1 more source

Triggered formation of thixotropic hydrogels by balancing competitive supramolecular synthons [PDF]

Soft Matter, 2013
Two component hydrogels have been obtained by formation of 1:1 complexes of bis(pyridyl urea)s with a range of dicarboxylic acids. The gels are thixotropic and undergo an assembly process in which short segments can reversibly assemble into an interconnected fibrous network.
Liu, K., Steed, J. W.
openaire   +3 more sources

Total Synthesis of Sacrolide A and Cytotoxic Evaluation

European Journal of Organic Chemistry, Volume 29, Issue 27, 17 July 2026.
Isolated from the edible cyanobacterium Aphanothece sacrum, sacrolide A is a highly potent antimicrobial and cytotoxic metabolite. Its total synthesis via a convergent strategy enabled accurate assessment of its effects on liver and colon cells, offering new insights into its bioactivity and potential health risks.
Priyanka Kataria, Kamel Hadj‐Kaddour, Alexis Giraudon, Jawad Belkheir, Alexandre Guy, Thierry Durand, Magali Gary‐Bobo, Camille Oger   +7 more
wiley   +1 more source

Application of Halogen Bonding to Organocatalysis: A Theoretical Perspective

Molecules, 2020
The strong, specific, and directional halogen bond (XB) is an ideal supramolecular synthon in crystal engineering, as well as rational catalyst and drug design.
Hui Yang, Ming Wah Wong
doaj   +1 more source

Modulating the Charge Transfer Channels via Constructing Charge‐Assisted Hydrogen‐Bonded Organic Frameworks for Enhanced Photosynthesis of Hydrogen Peroxide

Advanced Science, Volume 13, Issue 37, 3 July 2026.
This work reports a strategy of engineering charge‐assisted hydrogen bonds to tailor charge transfer channels in HOFs, significantly improving their performance in photocatalytic H2O2 production. ABSTRACT The production of H2O2 via artificial photosynthesis is often limited by inefficient charge‐carrier separation, causing significant charge ...
Yajun Zhao, Xianzhi Lan, Tiantian Chen, Qijie Mo, Chao Peng, Jianbo Jia, Jiewei Liu, Cheng‐Yong Su   +7 more
wiley   +1 more source

A ROBUST EIGHT–MEMBERED RING MOTIF IN THE HYDROGEN-BONDED STRUCTURE OF -(PHENYLAMINO)PYRIDINIUM- DI(METHANESULFONYL)AMIDATE

Indonesian Journal of Chemistry, 2002
The compound was prepared by dissolving 2-(phenylamino)pyridine (0.52 g ; 3.0 mmol) and di(methanesulfonyl)amine (0.51 g; 3.0 mmol) in 5 mL methanol. Slow partial evaporation of the solvent at low tempertaure (-30 oC) gave a yield of 0.66 g (64%) and ...
Karna Wijaya, Iqmal Tahir, Armand Blaschette, Oliver Mours, Peter G Jones   +4 more
doaj   +1 more source

Mechanistic Insight into H2S‐Induced Fluorescence Quenching in a Robust Metal–Organic Framework

Small, Volume 22, Issue 39, 13 July 2026.
An ultramicroporous Zn‐based metal‐organic framework, MFM‐520, enables reversible hydrogen sulfide adsorption and selective fluorescence sensing. Confinement of H2S within the pores perturbs ligand‐centered excited states through weak host‐guest interactions, enhancing non‐radiative decay pathways.
Valeria B. López‐Cervantes, Juan L. Obeso, J. Gabriel Flores, Ricardo A. Peralta, José Antonio de los Reyes, Jiangnan Li, Sihai Yang, Elodie Strupiechonski, Andrés De Luna Bugallo, Aída Gutiérrez‐Alejandre, Yoarhy A. Amador‐Sánchez, Diego Solis‐Ibarra, Ilich A. Ibarra   +12 more
wiley   +1 more source