Results 11 to 20 of about 34,037 (255)

BN-Embedded Perylenes

open access: yesMolecules, 2021
Transition metal catalyzed coupling reaction strategy has been utilized in the synthesis of two novel BN-perylenes starting from halogenated BN-naphthalene derivatives.
Xiangdong Fang
doaj   +3 more sources

Phosphorescent perylene imides [PDF]

open access: yesChemical Communications, 2012
Asymmetrically substituted perylene imide derivatives PIa and PIx display phosphorescence in glassy matrices at 77 K. The lifetime is 49.0 ms for PIa and 13.5 ms for PIx. The triplet energy is 1.79 eV for PIa and 1.68 eV for PIx as confirmed by sensitization experiments of the C(60) triplet.
Ventura   +7 more
openaire   +5 more sources

A High Crystalline Perylene-Based Hydrogen-Bonded Organic Framework for Enhanced Photocatalytic H2O2 Evolution

open access: yesMolecules, 2023
Hydrogen-bonded organic frameworks (HOFs) are a kind of crystalline porous material that have shown great potential for photocatalysis on account of their mild synthesis conditions and high crystallinity.
Mengke Hu   +3 more
doaj   +1 more source

Light-Harvesting Metal-Organic Frameworks (MOFs) La-PTC for Photocatalytic Dyes Degradation

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2021
A novel porous metal organic framework, La-PTC was synthesized by solvothermal method using a perylene-3,4,9,10-tetracarboxylate ligand and lanthanum metal ion. The FTIR analysis showed that La-PTC has a different structure with PTCDA and Na4PTC.
Agustino Zulys   +3 more
doaj   +1 more source

Panchromatic Light-Absorbing [70]Fullerene-Perylene-BODIPY Triad with Cascade of Energy Transfer as an Efficient Singlet Oxygen Sensitizer

open access: yesMolecules, 2023
A panchromatic light-absorbing [70]fullerene-perylene-BODIPY triad (C70-P-B) was synthesized and applied as a heavy atom-free organic triplet photosensitizer for photooxidation. The photophysical processes were comprehensively investigated by the methods
Lifeng Dou   +9 more
doaj   +1 more source

The Relation between Packing Effects and Solid State Fluorescence of Dyes [PDF]

open access: yes, 1991
The solid state fluorescence of diketopyrrolopyrrole dyes and perylene-3,4:9,10- tetracarboxylic bisimides with alkyl substituents are investigated and compared with noncovalent interactions.
Aubert   +25 more
core   +1 more source

Leichtlösliche, lichtechte Perylen‐Fluoreszenzfarbstoffe [PDF]

open access: yesChemische Berichte, 1988
AbstractDie Synthese von Perylenfarbstoffen 2 mit terminalen Alkylgruppen wird beschrieben. Langkettige n‐Alkylgruppen führen nicht zu einer Erhöhung der Löslichkeit, sondern zu einer Erniedrigung. Cycloalkyl‐Reste bewirken ein Minimum an Löslichkeit im Bereich der mittleren Ringe und ein Maximum beim Cyclotetradecyl‐Rest (2p).
Demmig, Stefan, Langhals, Heinz
openaire   +2 more sources

Diels–Alder Cycloaddition to the Bay Region of Perylene and Its Derivatives as an Attractive Strategy for PAH Core Expansion: Theoretical and Practical Aspects

open access: yesMolecules, 2020
PAHs (polycyclic aromatics hydrocarbons), the compound group that contains perylene and its derivatives, including functionalized ones, have attracted a great deal of interest in many fields of science and modern technology.
Aneta Kurpanik   +5 more
doaj   +1 more source

Panchromatic Absorbers Tethered for Bioconjugation or Surface Attachment

open access: yesMolecules, 2022
The syntheses of two triads are reported. Each triad is composed of two perylene-monoimides linked to a porphyrin via an ethyne unit, which bridges the perylene 9-position and a porphyrin 5- or 15-position.
Rui Liu   +6 more
doaj   +1 more source

Photophysics, Molecular Reorientation in Solution and X-Ray Structure of a New Fluorescent Probe 1,7-Diazaperylene [PDF]

open access: yes, 1993
A new fluorescent molecule 1,7-diazaperylene (DP) has been investigated by means of time-resolved and steady-state polarized fluorescence spectroscopy, as well as X-ray spectroscopy.
Barkely   +32 more
core   +1 more source

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