Results 51 to 60 of about 61,221 (238)
Crystal structure of 2-cyano-1-methylpyridinium perchlorate
Acta Crystallographica Section E: Crystallographic Communications, 2015 The asymmetric unit of the title salt, C7H7N2+·ClO4−, comprises two independent formula units. The solid-state structure comprises corrugated layers of cations and of anions, approximately parallel to (010).
Vu D. Nguyen +3 more
doaj +1 more source
Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation
Advanced Optical Materials, EarlyView.A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu +10 more
wiley +1 more source
Amination of Phenols and Halophenols via Pyridinium–Iridium Dual Photocatalysis [PDF]
In this study, we present a photochemical method for the amination of phenols (C–H) and halophenols (SNAr), facilitated by dual catalytic pathways involving both Ir(III) photocatalysis and phenol–pyridinium EDA complexation. By incorporating a pyridinium
Marisa C., Kozlowski +3 more
core +2 more sources
Anion Influence on the Packing of 1,3-Bis(4-Ethynyl-3-Iodopyridinium)-Benzene Halogen Bond Receptors
Crystals, 2019 Rigid and directional arylethynyl scaffolds have been widely successful across diverse areas of chemistry. Utilizing this platform, we present three new structures of a dicationic 1,3-bis(4-ethynyl-3-iodopyridinium)-benzene halogen bonding receptor with ...
Daniel A. Decato +2 more
doaj +1 more source
Advanced Science, EarlyView.Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Pt1, an organometallic platinum‐based complex, act as a modulator of redox homeostasis in cnidarians, regulating cellular functions and life‐cycle dynamics. In Nematostella vectensis, it mitigates oxidative stress, strengthens detox systems and accelerates development.
Giuseppina Tommasini +13 more
wiley +2 more sources
Reversible Exfoliation‐Aggregation Dynamics in Ionic COFs for Tunable Interfacial Catalysis
Advanced Science, EarlyView.A unique ionic covalent organic framework (I‐4) exhibits unprecedented concentration‐dependent dynamic behavior in water, undergoing reversible transitions between aggregation and exfoliation. This enables fully controllable, bidirectional modulation of its particle size and surface micro‐environment.
Jilu Yang +8 more
wiley +1 more source
Pyridinium ylids in heterocyclic synthesis
, 2011 Pyridinium ylids are versatile tools in organic synthesis. The stability of pyridinium ylids and their generation is commented. This review gives an overview of the possible modes through which pyridinium ylids can react.
Jan Jacobs +7 more
core +1 more source
On the Chemical Stabilities of Ionic Liquids
Molecules, 2009 Ionic liquids are novel solvents of interest as greener alternatives to conventional organic solvents aimed at facilitating sustainable chemistry. As a consequence of their unusual physical properties, reusability, and eco-friendly nature, ionic liquids ...
Yen-Ho Chu +3 more
doaj +1 more source
Advanced Science, EarlyView.An environmentally responsive antenna assembled onto the algal cell membrane creates a biohybrid with a responsive interface that promotes photosynthesis under normal conditions and shifts to H2O2‐triggered stress reporting and modulation upon stress onset, boosting environmental sensing and adaptive response.
Bing Liu +6 more
wiley +1 more source