Results 91 to 100 of about 1,579 (190)

A fully conjugated meso-boron-substituted porphyrinoid combining Lewis acidity with redox-switchable aromaticity

Nature Communications
The structural motif of porphyrin is relevant for many essential biological processes and has emerged as a versatile component of functional materials. Here, we introduce a thiophene-based porphyrinogen having electron-deficient boron atoms in all four ...
Manuel Buckel, Jonas Klopf, Johannes S. Schneider, Artur Lik, Nicolas A. Riensch, Ivo Krummenacher, Holger Braunschweig, Bernd Engels, Holger Helten   +8 more
doaj   +1 more source

Ultra-photostable small-molecule dyes facilitate near-infrared biophotonics

Nature Communications
Long-wavelength, near-infrared small-molecule dyes are attractive in biophotonics. Conventionally, they rely on expanded aromatic structures for redshift, which comes at the cost of application performance such as photostability, cell permeability, and ...
Kui Yan, Zhubin Hu, Peng Yu, Zuyang He, Ying Chen, Jiajian Chen, Haitao Sun, Shangfeng Wang, Fan Zhang   +8 more
doaj   +1 more source

Effect of annulation pattern on the antiaromaticity of thioether‐ and sulfone‐substituted dinaphthopentalenes

As non-alternant hydrocarbons with antiaromatic character, diarenopentalenes are of significant interest. By varying the nature and attachment geometry of the annulated aromatic units, their antiaromaticity and optoelectronic properties can be influenced.
Battisti, Silas M. A., Esser, Birgit, Hermann, Mathias   +2 more
core   +1 more source

The apparent and hidden variables for optimizing and functionalizing non-alternant nanographenes: A comprehensive study

Nano Trends
Atomically precise non-alternant isomers of short armchair graphene nanoribbons (AGNRs) with A = 2 armchair and Z = 3, 4 zigzag rings have been recently synthesized by introducing Stone-Wales (SW) moieties, pursuing open shell magnetic states for ...
Aristides D. Zdetsis
doaj   +1 more source

Advances for Triangular and Sandwich-Shaped All-Metal Aromatics

Molecules
Much experimental work has been contributed to all-metal σ, π and δ-aromaticity among transition metals, semimetallics and other metals in the past two decades.
Miaomiao Wang, Yanlan Wang
doaj   +1 more source

Unsymmetrical Thienopentalenes: Synthesis, Optoelectronic Properties, and (Anti)aromaticity Analysis

ACS Omega, 2022
Tamás Gazdag, Péter J. Mayer, Péter Pál Kalapos, Tamás Holczbauer, Ouissam El Bakouri, Gábor London   +5 more
doaj   +1 more source

Triply N-Confused Hexaphyrins(1.1.1.1.1.0) Synthesized From N-Confused Hexaphyrin(2.1.1.1.1.1): Aromaticity Modulation, Metal Coordination, and Photothermal Conversion. [PDF]

Angew Chem Int Ed Engl
Zhu G, Ma Z, Zhou M, Wang H, Li S, Nasibullin R, Baryshnikov G, Li C, Ågren H, Song J, Jiang J, Li Q, Xie Y.   +12 more
europepmc   +1 more source

Antiaromaticity-Driven Enhancement of Single-Molecule Electrical Conductance by s-Indacene Molecular Bridges. [PDF]

Angew Chem Int Ed Engl
Chu CP, Hanamura Y, Ohto T, Maeda S, Yamada R, Yu SL, Cheng YJ, Tada H, Tobe Y.   +8 more
europepmc   +1 more source

Defying antiaromaticity - the curious case of pentalenopentalenes. [PDF]

Chem Sci
Gogoi A, Gershoni-Poranne R.
europepmc   +1 more source

π-Enlargement in Porphyrin Macrocycles at Interfaces. [PDF]

Angew Chem Int Ed Engl
Barragán A, Pérez-Elvira E, García-Frutos A, Vicent DJ, Mutombo P, Lauwaet K, Gallego JM, Miranda R, Urgel JI, Gallardo A, Martín N, Écija D.   +11 more
europepmc   +1 more source