Highly Crystalline and Oriented Thin Films of Fully Conjugated 3D-Covalent Organic Frameworks. [PDF]
Angew Chem Int Ed EnglFully conjugated 3D covalent organic frameworks (COFs) are a newly emerged class of materials that expands reticular chemistry to extended electron delocalization for optoelectronic applications. To overcome the limitations of sp3‐connected 3D frameworks,
Munoz-Alonso I +9 more
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Tailoring the optical and dynamic properties of iminothioindoxyl photoswitches through acidochromism. [PDF]
Chem Sci, 2021 Multi-responsive functional molecules are key for obtaining user-defined control of the properties and functions of chemical and biological systems. In this respect, pH-responsive photochromes, whose switching can be directed with light and acid-base ...
Medved' M +9 more
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Beyond Photochromism: Alternative Stimuli to Trigger Diarylethenes Switching [PDF]
Advanced ScienceDiarylethenes (DAEs) are typical photochemically reversible type (P‐type) photochromic materials with excellent thermal stability and high fatigue resistance and are widely exploited as photo‐switches for various applications in molecular devices, data ...
Qi Ai +4 more
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Rewritable acidochromic papers based on oxazolidine for anticounterfeiting and photosensing of polarity and pH of aqueous media [PDF]
Scientific Reports, 2022 Oxazolidine is a new category of stimuli-chromic organic compounds with unique characteristics in response to polarity, pH changes, water, light, and metal ions that were well-known as solvatochromism, acidochromism, hydrochromism, photochromism, and ...
Bahareh Razavi +2 more
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Electrochemical Ring-Opening and -Closing of a Spiropyran. [PDF]
J Phys Chem A, 2021 The bistability of molecular switches is an essential characteristic in their use as functional components in molecular-based devices and machines. For photoswitches, light-driven switching between two stable states proceeds via short-lived changes of ...
Steen JD +6 more
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Single wavelength colour tuning of spiropyran and dithienylethene based photochromic coatings. [PDF]
Mater Adv, 2022 Controlling the transmission of thin films with external stimuli is an important goal in functional optical materials and devices. Tuning is especially challenging where both broad band (neutral density filtering) and spectrally varied (colour ...
Feringa R +4 more
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PET-Driven Fluorescence Modulation in Halochromic Styryl Hemicyanine Dyes Targeting DNA Minor Groove [PDF]
MoleculesA new series of styryl hemicyanine dyes featuring substituted N-phenylpiperazine end groups was synthesized using an environmentally friendly procedure.
Teodora Aleksandrova +5 more
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Synthesis and Acid-Responsiveness of an Insulated π-Conjugated Polymer Containing Spiropyrans in Its Backbone [PDF]
Molecules, 2019 A π-conjugated polymer containing spiropyrans (SPs), which could be almost completely converted to protonated merocyanines (MCH+) and back to the SP form by adding an acid and a base, respectively, was developed.
Hiromichi V. Miyagishi +3 more
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Spiropyran-based chromic hydrogels for CO2 absorption and detection [PDF]
Frontiers in Chemistry, 2023 By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO2 sensors are of relevance for a variety of fields.
Arnau Marco +3 more
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Proton-Stabilized Photochemically Reversible E/ Z Isomerization of Spiropyrans. [PDF]
J Phys Chem B, 2018 Spiropyrans undergo C-spiro-O bond breaking to their ring-open protonated E-merocyanine form upon protonation and irradiation via an intermediate protonated Z-merocyanine isomer.
Kortekaas L +3 more
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