Results 31 to 40 of about 11,491 (189)

Dissipative Regenerative Chemiluminescence in Water: A Perylene‐Based Out‐of‐Equilibrium Light‐Emitting System

open access: yesAngewandte Chemie, EarlyView.
Driven by sodium dithionite and hydrogen peroxide under mild aqueous conditions, a water‐soluble perylene bisimide undergoes reversible electron‐transfer cycles that generate its emissive excited state without dye decomposition. We define this out‐of‐equilibrium system as chemically fueled regenerative chemiluminescence (CFRCL), opening new avenues for
Luca Morgan   +5 more
wiley   +2 more sources

Perylene Bisimide Cyclophanes: Structure–Property Relationships upon Variation of the Cavity Size

open access: yesOrganic Materials, 2020
Five cyclophanes composed of two perylene bisimide (PBI) dyes and various CH2–arylene–CH2 linker units were synthesized. PM6-D3H4 geometry-optimized structures and a single crystal for one of these cyclophanes reveal well-defined distances between the ...
Jessica Rühe   +4 more
doaj   +1 more source

Fused‐ring induced end‐on orientation in conjugated molecular dyads toward efficient single‐component organic solar cells

open access: yesAggregate, 2023
The molecular orientations of conjugated materials on the substrate mainly include edge‐on, face‐on, and end‐on. Edge‐on and face‐on orientations have been widely observed, while end‐on orientation has been rarely reported.
Dongdong Xia   +8 more
doaj   +1 more source

Pi‐Stacking Enhances Stability, Scalability of Formation, Control over Flexibility, and Circulation Time of Polymeric Filamentous Nanocarriers

open access: yesAdvanced NanoBiomed Research, 2021
Self‐assembling filomicelles (FMs) are of great interest to nanomedicine due to their structural flexibility, extensive systemic circulation time, and amenability to unique “cylinder‐to‐sphere” morphological transitions.
Sophia Li   +5 more
doaj   +1 more source

Self‐Assembly of Bowl‐Shaped Naphthalimide‐Annulated Corannulene

open access: yesChemistryOpen, 2020
The self‐assembly of a bowl‐shaped naphthalimide‐annulated corannulene of high solubility has been studied in a variety of solvents by NMR and UV/Vis spectroscopy.
Rebecca Renner   +2 more
doaj   +1 more source

Bending‐Induced Vibrational Landscape Reorganization Governs Energy Dissipation in Perylene Bisimides

open access: yesAngewandte Chemie, Volume 138, Issue 35, 24 August 2026.
Gradually bent perylene bisimides (PBIs) isolate structural distortion as the sole variable and exhibit negligible intersystem crossing, uncovering rapid vibrational dephasing as the dominant driver of internal conversion through excited‐state vibrational landscape reorganization.
Wei Zhang   +8 more
wiley   +2 more sources

1,6- and 1,7-Regioisomers of Asymmetric and Symmetric Perylene Bisimides: Synthesis, Characterization and Optical Properties

open access: yesMolecules, 2013
The 1,6- and 1,7-regioisomers of dinitro- (1,6-A and 1,7-A) and diamino-substituted perylene bisimides (1,6-B and 1,7-B), and 1-amino-6-nitro- and 1-amino-7-nitroperylene bisimides (1,6-C and 1,7-C) were synthesized. The 1,6-A and 1,7-A regioisomers were
Hsing-Yang Tsai   +2 more
doaj   +1 more source

Liquid Crystalline Perylene Bisimide Derivatives Bearing Oligosiloxane Moieties

open access: yesChemistry
Perylene bisimide derivatives are typical n-type semiconductors as well as redox-active materials. However, it has been difficult to produce thin films by solution processes because of their low solubilities in organic solvents.
Masahiro Funahashi, Shinobu Uemura
doaj   +1 more source

Size-dependent exciton dynamics in one-dimensional perylene bisimide aggregates

open access: yesNew Journal of Physics, 2012
The size-dependent exciton dynamics of one-dimensional aggregates of substituted perylene bisimides are studied by ultrafast transient absorption spectroscopy and kinetic Monte-Carlo simulations as a function of the excitation density and the temperature
Steffen Wolter   +6 more
doaj   +1 more source

Switching or blinking? – The switching behaviour of single photochromic triads

open access: yesEPJ Web of Conferences, 2018
Photochromic molecules can be interconverted between two bistable conformations by light [1–3]. Irie and coworkers described a strategy to achieve superior fluorescence characteristics and outstanding switching characteristics of a photochromic unit by ...
Maier Johannes   +4 more
doaj   +1 more source

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