Results 51 to 60 of about 346 (146)
Acidochromism of amino-substituted indolizine chromophores: Towards white light emission
Journal of Molecular Liquids, 2023 This work was supported by Spanish Ministerio de Ciencia e Innovación (project CTQ2017-88171-P), Generalitat Valenciana (projects AICO/2017/007 and APOTIP/2021/018), Vicerrectorado de Investigación–Universidad de Alicante (grant UAFPU20-02 for T.A.-C.), Instituto de Síntesis Orgánica (ISO)–Universidad de Alicante, Junta de Comunidades de Castilla-La ...
Anton-Canovas, Teresa +5 more
openaire +3 more sources
Hemiindigoids as Prominent Photoswitch Scaffolds
ChemPhotoChem, Volume 9, Issue 3, March 2025.This review explores the synthesis, photophysical properties, and diverse applications of hemiindigoid photoswitches, a class of chromophores derived from indigo. With unique visible‐light responsiveness, high thermal bistability, and rapid, reversible switching, hemiindigoids present promising advances in photopharmacology, molecular solar thermal ...
Aurélie Gernet +4 more
wiley +1 more source
Controlled Charge Transfer in Single Walled Carbon Nanotubes using Organic Molecules via Nondestructive Covalent Pre-Functionalization [PDF]
This thesis proposes a novel approach for controlling and optimizing the optoelectronic properties of single-walled carbon nanotubes (SWCNTs) through functional groups for covalent functionalization and, ultimately, building photonic devices at the ...
Fiebor, Alphonse
core +1 more source
Molecular aggregation, solvato- and acidochromic properties of symmetrical ketocyanines
Journal of Chemical Sciences, 2013 The absorption and fluorescence spectral characteristics of some symmetrical ketocyanine dyes have been investigated in different solvents of various polarities using steady-state absorption and emission spectroscopic techniques. The absorption spectral features are less sensitive to the solvent characteristics than the corresponding fluorescence ...
TAREK FAYED +2 more
openaire +2 more sources
Cationic thiazolothiazole derivatives – A new class of photosensitizing agents against Staphylococcus aureus [PDF]
The assessment of thiazolothiazoles (TzTz) as photosensitizers in photodynamic inactivation (PDI) experiments is reported for the first time. Mono and dicationic TzTz derivatives were synthesized, and their photosensitizing ability was assessed on ...
Cerqueira, Ana F.R. +6 more
core +2 more sources
Quantum Chemical Study of a Dihydroazulene‐Spiropyran Multi‐State Multi‐Functional Molecular Switch
ChemPhotoChem, Volume 8, Issue 9, September 2024.While its UV/vis absorption properties are straightforward to interpret, the DHA‐SP molecular switch turns out to present a complex behavior of its second‐order NLO responses along its successive transformations between its eight state, but TDDFT calculations and the Summation‐Over‐States formalism are efficient tools to explain these and reveal the ...
Noah Deveaux +4 more
wiley +1 more source
Tristriazolotriazines with Azobenzene Arms ‐ Acidochromic Dyes and Discotic Liquid Crystals
European Journal of Organic Chemistry, 2019 Tristriazolotriazines with azobenzene substitution and peripheral alkoxy‐ or alkylamino chains were prepared from the corresponding aryltetrazoles and cyanuric chloride. These star‐shaped dyes are highly acidochromic. Alkoxy‐substitution allows reversible trans‐cis photoswitching.
Marcel Sperner +2 more
openaire +2 more sources
Photo- and halochromism of spiropyran-based main-chain polymers [PDF]
Advanced functional polymeric materials based on spiropyrans (SPs) feature multi-stimuli responsive characteristics, such as a change in color with exposure to light (photochromism) or acids (halochromism).
Barner-Kowollik, Christopher +3 more
core +2 more sources
Small, Volume 20, Issue 28, July 11, 2024.A dual responsive (light and pH) spiropyran‐based smart sensor is fabricated by a simple layer‐by‐layer (LbL) assembly process from upcycled thermoplastic polyester elastomer (TPEE) materials derived from recycled polyethylene terephthalate (r‐PET). Positively charged chitosan solutions and negatively charged merocyanine‐COOH (MC‐COOH) solutions are ...
Chun‐Ting Chang +10 more
wiley +1 more source
One-pot, multicomponent reactions via indolium ion intermediates: synthesis of spiropyrans and pyrroloindolines [PDF]
, 2022 Nitrogen-containing heterocylces such as indoles, pyrroloindolines and spiropyrans are a common motif in a variety of diverse, natural products, which exhibit interesting physical and biological properties.
Hughes-Whiffing, C
core