Generierung einer kleinen HOMO‐LUMO‐Lücke und intramolekulare C‐H‐Borylierung durch Diboren‐Anthracen‐Orbitalinterkalation

Wang, Sunewang R.; Arrowsmith, Merle; Böhnke, Julian; Braunschweig, Holger; Dellermann, Theresa; Dewhurst, Rian D.; Kelch, Hauke; Krummenacher, Ivo; Mattock, James D.; Müssig, Jonas H.; Thiess, Torsten; Vargas, Alfredo; Zhang, Jiji

doi:10.1002/ange.201704063

Cited by 23 publications

(2 citation statements)

References 48 publications

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“…Such supramolecular assembling is favorable according to analysis based on frontier molecular orbital theory. [54,55] The energy gap between the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO) of PA is 4.319 eV, and that of NH is 3.543 eV. In contrast, the gap of PA-NH assembly is 2.178 eV (Figure 2f We further conducted spectroscopic investigations on PA-NH assembly.…”

Section: Resultsmentioning

confidence: 99%

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Yang

Zheng

et al. 2023

Advanced Materials

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Information encryption technologies are very important for security, health, commodity, and communications, etc. Novel information encryption mechanisms and materials are desired to achieve multi‐mode and re‐programmable encryption. Here, we demonstrate a supramolecular strategy to achieve multi‐modal, erasable, reprogrammable, and reusable information encryption by reversibly modulating fluorescence. A butyl‐naphthalimide with flexible ethylenediamine functionalized β‐cyclodextrin (N‐CD) is utilized as fluorescent responsive ink for printing or patterning information on polymer brushes with dangling adamantane group grafted on responsive hydrogels. The photoluminescent naphthalimide moiety is bonded to β‐CD and entrapped in the cavity. Its fluorescence is highly weakened in β‐CD cavity and recovers after being expelled from the cavity by a competing guest molecule to emit bright green photoluminescence under UV. Experiments and theoretical calculations suggest π‐π stacking and ICT as the primary mechanism for the naphthalimides assembly and fluorescence, which can be quenched through insertion of conjugated molecules and recover by removing the insert. Such reversible quenching and recovering are used to achieve repeated writing, erasing, and re‐writing of information. We further combine supramolecular recognition and hydrogel shape memory to achieve reversible dual‐encryption. This study provides a novel strategy to develop smart materials with improved information security for broad applications.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Yang

Zheng

et al. 2023

Advanced Materials

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“…This twisted conformation allows the intercalation of the relatively high π (B = B) orbital and the low π * orbital of the anthill rest without significant conjugation, resulting in a small HOMO-LUMO space and finally a CH borylation of the anthryl unit . [8] On the other hand, two approaches are studied: a) wave function theory (WFT), and b) density functional theory (DFT) are the two most popular solutions to the problems of theelectronic structure of atoms and molecules. The results provide convincing evidence suggesting that WFT and DFT are complementary to each other, to understand the properties of electronic structure and molecular reactivity from different perspectives.…”

Section: Introductionmentioning

confidence: 99%

Quantum Theory of the Electron Transfer Coefficient

González-Pérez¹

2017

IJAEMS

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Triaminotriborane(3): A Homocatenated Boron Chain Connected by B−B Multiple Bonds

et al. 2017

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A triaminotriborane(3) was isolated as purple crystals through the reduction of (TMP)BCl2 (TMP=2,2,6,6‐tetramethylpiperidino) by sodium naphthalenide. Single‐crystal X‐ray diffraction and computational studies of the obtained triaminotriborane(3) revealed a bent structure of the [B(NR2)]3 chain. The bond lengths between the central and terminal boron atoms were similar to those observed in neutral diborene species. The multiple‐bonding character may be best described by a three‐center two‐electron π‐bond along the B3 chain. The distance between the two terminal boron atoms (2.177 Å) in the solid‐state structure implies a weak interaction between them. When an excess amount of Li was used as the reducing agent, the reaction yielded an unusual dianionic species. The isolation and characterization of these two reduction products are reported herein.

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Generierung einer kleinen HOMO‐LUMO‐Lücke und intramolekulare C‐H‐Borylierung durch Diboren‐Anthracen‐Orbitalinterkalation

Cited by 23 publications

References 48 publications

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Quantum Theory of the Electron Transfer Coefficient

Triaminotriborane(3): A Homocatenated Boron Chain Connected by B−B Multiple Bonds

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