Results 1 to 10 of about 10,562 (252)

Merocyanine dyes [PDF]

open access: yesPhysical Sciences Reviews, 2021
Abstract Merocyanine dyes belong to the class of neutral polymethine dyes, where one terminal component is typically found in cyanine dyes and the second obtained from an active methylene compound. The different electron acceptor/donator abilities of the two terminal components have a marked impact on the electronic structure of a ...
H. Mustroph
openaire   +2 more sources

Reversible Low-Light Induced Photoswitching of Crowned Spiropyran-DO3A Complexed with Gadolinium(III) Ions [PDF]

open access: yesMolecules, 2012
Photoswitchable spiropyran has been conjugated to the crowned ring system DO3A, which improves its solubility in dipolar and polar media and stabilizes the merocyanine isomer. Adding the lanthanide ion gadolinium(III) to the macrocyclic ring system leads
André Knoesen   +6 more
doaj   +6 more sources

A merocyanine-based conductive polymer [PDF]

open access: yesJournal of Materials Chemistry C, 2013
We report the first example of a conducting polymer with a merocyanine incorporated into the polymer backbone by electropolymerisation of a spiropyran moiety covalently linked between two alkoxythiophene units.
Byrne, Robert   +9 more
core   +6 more sources

Time-evolving photoreconfigurable self-assembly for integrated fluorochromic cellulosic emitter [PDF]

open access: yesCommunications Chemistry
Light-driven dissipative self-assembly has garnered substantial attention due to its precise spatiotemporal controllability. However, achieving synergistic integration of spatial manipulation fidelity, architectural programmability, and dynamic ...
Fengfan Zhu   +7 more
doaj   +2 more sources

Photochromism of pyridine-substituted merocyanine through reversible C-N bond formation [PDF]

open access: yesNature Communications
The reversible interconversion between spiropyran and merocyanine constitutes one of the most intensively investigated photochromic systems, enabling diverse applications in stimuli-responsive materials and optical imaging.
He Li   +9 more
doaj   +2 more sources

New Triphenylphosphonium Salts of Spiropyrans: Synthesis and Photochromic Properties [PDF]

open access: yesMolecules
The most important area of modern pharmacology is the targeted delivery of drugs, and one of the most promising classes of chemical compounds for creating drugs of this kind are the photochromic spiropyrans, capable of light-controlled biological ...
Artur A. Khuzin   +3 more
doaj   +2 more sources

Ultrafast signatures of merocyanine overcoming steric impedance in crystalline spiropyran [PDF]

open access: yesNature Communications
Isomerisation through stereochemical changes and modulation in bond order conjugation are processes that occur ubiquitously in diverse chemical systems and for photochromic spirocompounds, it imparts them their functionality as phototransformable ...
Khalid M. Siddiqui   +7 more
doaj   +2 more sources

Conformational Selectivity of Merocyanine on Nanostructured Silver Films: Surface Enhanced Resonance Raman Scattering (SERRS) and Density Functional Theoretical (DFT) Study

open access: yesFrontiers in Chemistry, 2022
In this study, detailed structural and vibrational analysis of merocyanine has been investigated using Raman, surface enhanced Raman scattering (SERS) and surface-enhanced resonance Raman scattering (SERRS).
Abhishek Das   +4 more
doaj   +1 more source

Polymethine Dyes Based on 2,2-Difluoro-1,3,2-dioxaborine: A Minireview

open access: yesЖурнал органічної та фармацевтичної хімії, 2022
Aim. To summarize and analyze literature data on the polymethine dyes containing the 2,2-difluoro-1,3,2-dioxaborine ring. Results and discussion. Boron difluoride complex of β-diketone (2,2-difluoro-1,3,2-dioxaborine, F2DB) is a unique structural motif ...
Vladyslav M. Polishchuk   +1 more
doaj   +1 more source

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