Harnessing Negative Photochromism in Styryl Cyanines for Light-Modulated Proton Transport. [PDF]
Angew Chem Int Ed EnglEfficient photoswitches capable of complete conversion to their metastable isomer are not so common, yet highly desirable for applications in smart materials and devices.
Pacella G +6 more
europepmc +5 more sources
Phenanthrothiophene-Triazine Star-Shaped Discotic Liquid Crystals: Synthesis, Self-Assembly, and Stimuli-Responsive Fluorescence Properties [PDF]
Chemistry – A European Journal, Volume 30, Issue 27, May 14, 2024.Lipophilic biphenylthiophene- and phenanthrothiophene-triazine compounds, BPTTn and CPTTn, respectively, were prepared by a tandem procedure involving successive Suzuki-Miyaura coupling and Scholl cyclodehydrogenation reactions.
Deng, Wen Jing +4 more
core +3 more sources
Noncommutative Switching of Double Spiropyrans. [PDF]
J Phys Chem A, 2020 The spiropyran family of photochromes are key components in molecular-based responsive materials and devices, e.g., as multiphotochromes, covalently coupled dyads, triads, etc.
Kortekaas L +4 more
europepmc +4 more sources
Bioaggregachromism of Asymmetric Monomethine Cyanine Dyes as Noncovalent Binders for Nucleic Acids. [PDF]
Biosensors (Basel)Two new asymmetric monomethine cyanine dyes, featuring dimethoxy quinoliniumor methyl quinolinium end groups and benzothiazole or methyl benzothiazole endgroups were synthesized.
Ilieva S +7 more
europepmc +2 more sources
Spiropyran‐Based Photoisomerizable α‐Amino Acid for Membrane‐Active Peptide Modification [PDF]
Chemistry – A European Journal, Volume 30, Issue 22, April 16, 2024.Photoisomerizable peptides are promising drug candidates in photopharmacology. While azobenzene- and diarylethene-containing photoisomerizable peptides have already demonstrated their potential in this regard, reports on the use of spiropyrans to ...
Afonin, Sergii +12 more
core +3 more sources
Optical Force Monitoring in Polymeric Materials with a Coumarin-Based Mechanophore. [PDF]
Angew Chem Int Ed EnglCoumarin dyes are reacted with acrylates to form a mechanophore via an accessible two‐step synthesis that exhibits exclusive responsivity to force. Mechanical deformation of polymeric materials functionalized with the mechanophore activates blue fluorescence visible to the naked eye, enabling the optical detection of force‐induced molecular damage in ...
Li Y, Clough JM.
europepmc +3 more sources
Excited-State Proton Transfer in Push-Pull N-Methyl Pyridium Reversible Super-Photoacids Ruled by Intramolecular Hydrogen-Bond-Like Interactions. [PDF]
ChemistryPush‐pull A+‐π‐D N‐methyl pyridinium derivatives were found to act as efficient reversible superphotoacids. Upon excitation, they undergo a fast ESPT but recombine with the released proton when the excitation is turned off. In the ortho isomers, intramolecular hydrogen‐bond‐like interactions between the hydroxyl group and the ethenic hydrogen are ...
Cesaretti A +8 more
europepmc +2 more sources
Fluorescent Carbazole-Derived Aza[5]Helicenes: Synthesis, Functionalization, and Characterization. [PDF]
ChemistryVariously substituted indolophenanthridines, indolocarbazoles, and cinnolinocarbazoles synthesized by ortho fusion from teraryl precursors show significant Stokes shifts, especially for the protonated states of indolophenanthridines and cinnolinocarbazole.
Marten I, Dilanas MEA, Podlech J.
europepmc +2 more sources
2,5-Bis((E)-2-ferrocenylvinyl)-N,N,N′,N′-tetrapropylbenzene-1,4-diamine
Molbank, 2022 The synthesis and spectroscopic investigation of an acidochromic phenylenevinylene dye with two ferrocene groups is presented.
Matthias Jochem +3 more
doaj +1 more source
Redox and pH-Induced Switching in Solution and on Surfaces:from spiropyrans to manganese oxidation catalysts [PDF]
, 2022 The study of fundamental properties of single layers of molecules on gold under various conditions, mainly the influence of pH and electrode potential, is the focus of this thesis. We have demonstrated the first instance of redox switching of spiropyrans,
Steen, Jorn D.
core +1 more source