Distance Matters: Biasing Mechanism, Transfer of Asymmetry, and Stereomutation in N-Annulated Perylene Bisimide Supramolecular Polymers. [PDF]
The synthesis of two series of N-annulated perylene bisimides (PBIs), compounds 1 and 2, is reported, and their self-assembling features are thoroughly investigated by a complete set of spectroscopic measurements and theoretical calculations.
Martínez MA +8 more
europepmc +2 more sources
By the application of simultaneous target analysis of multiple femtosecond transient absorption data sets we have identified two loss channels within multi-chromophoric light harvesting arrays.
Ivo H.M. van Stokkum +3 more
doaj +2 more sources
In Silico Ultrafast Nonlinear Spectroscopy Meets Experiments: The Case of Perylene Bisimide Dye. [PDF]
Spectroscopy simulations are of paramount importance for the interpretation of experimental electronic spectra, the disentangling of overlapping spectral features, and the tracing of the microscopic origin of the observed signals.
Segatta F +13 more
europepmc +2 more sources
Antifungal Activity of Amphiphilic Perylene Bisimides
Perylene-based compounds, either naturally occurring or synthetic, have shown interesting biological activities. In this study, we report on the broad-spectrum antifungal properties of two lead amphiphilic perylene bisimides, compounds 4 and 5, which ...
Vicky C. Roa-Linares +3 more
doaj +5 more sources
Self-assembled Helical Tetramer Stack of Terrylene Bisimide in Solution and Crystalline State. [PDF]
A TBI with sterically demanding imide substituents self‐assembles in solution into a defined helical tetramer π‐stack. Both the monomer and the tetramer can form complexes with polycyclic aromatic guest molecules, resulting in the formation of tri‐ or hexalayer in solution and in the crystalline solid state.
Soldner S +3 more
europepmc +3 more sources
Ultrafast coherent exciton dynamics in size-controlled perylene bisimide aggregates [PDF]
For H-aggregates of perylene bisimide (PBI), it has been reported that upon photoexcitation, an initially delocalized Frenkel exciton is localized by excimer formation.
Seongsoo Kang +6 more
doaj +2 more sources
Nanostructured polyurethane perylene bisimide ester assemblies with tuneable morphology and enhanced stability [PDF]
Size control has been successfully achieved in inorganic materials, but it remains a challenge in polymer nanomaterials due to their polydispersity. Here, we report a facile approach to tailor the diameters of polyurethane (PU) nanoparticles (490 nm, 820
Xiaoxiao Zhang +3 more
doaj +2 more sources
Silanediol-Bay-Bridge Rigidified Axially Chiral Perylene Bisimide [PDF]
Chiral organic molecules with a complementing π-structure are highly desired to obtain materials with good semiconducting properties and pronounced chirality effects in the visible region. Herein, we introduce a novel design strategy to achieve an axially chiral and rigid perylene bisimide (PBI) dye by attaching the chirality-inducing 2,2'-biphenoxy ...
Oliver Nagler +2 more
openaire +3 more sources
Optical gating with organic building blocks. A quantitative model for the fluorescence modulation of photochromic perylene bisimide dithienylcyclopentene triads. [PDF]
We investigated the capability of molecular triads, consisting of two strong fluorophores that were covalently linked to a photochromic molecule, for optical gating.
Pärs M +5 more
europepmc +2 more sources
Coronene Bisimide as a Visible-Light-Mediated Triplet-Triplet Energy Transfer Catalyst. [PDF]
Coronene bisimide (CBI) with its efficient intersystem crossing was used as a visible‐light‐absorbing photosensitizer. Different reactions, including cycloadditions and oxidations, were demonstrated via triplet‐energy transfer from CBI. Abstract Photosensitization has emerged as a versatile tool to facilitate access to excited states under mild ...
Sukumaran DP, Würthner F.
europepmc +2 more sources

