Results 11 to 20 of about 4,123 (167)
Angew Chem Int Ed EnglA strained macrocycle consisting solely of azulene subunits, named [6]cycloparaazulenylene ([6]CPA), is presented. The macrocycle exhibits a notably narrow HOMO–LUMO gap for a pristine azulene species, strain‐induced red‐shifted absorption, and an unusual tubular packing motif elucidated via single‐crystal XRD.
Douglas C +8 more
europepmc +2 more sources
Linearly Expanded Azulenes in the S 0 , T 1 , and Qu 1 States: A Unified View of Electronic Structure and Aromaticity. [PDF]
J Comput ChemLinear expansion of azulene leads to markedly different electronic behavior from that of the corresponding acenes, including an earlier emergence of open‐shell character. Simple resonance structures provide an intuitive framework for understanding these trends and their evolution with molecular size.
Sarkar P, Almog I, Gershoni-Poranne R.
europepmc +2 more sources
Magnetoelectric Coupling on the Fused Azulene Oligomers [PDF]
, 2021 The global magnetic phase diagram for fused azulene oligomers is obtained by using a fermionic Hubbard Hamiltonian, a intermediate model between the molecular (Pariser-Parr-Pople empiric Hamiltonian) and spin-1/2 antiferromagnetic Heisenberg approaches ...
Alexandra, Valentim +2 more
core +1 more source
, 2022 Azulene-based homopolymers are of great interest from the point view of chemistry and material science. Herein, by means of Friedel–Crafts acylation to introduce solubilizing chains on the 1-position of azulene, we designed and synthesized two examples ...
Jingtao Wang +19 more
core +2 more sources
, 2022 The 2,6-azulene unit is one of the most promising moieties for constructing organic conjugated materials. Herein, we reported the design and synthesis of 2,6-azulene-based conjugated copolymers P(AzIDT-C6), P(AzIDT-PhC6), and P(AzIDTT-PhC6) containing
Xiaodi Yang (469303) +9 more
core +2 more sources
Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
Small Science, 2023 Both naphthalene and azulene have the same number of carbon and hydrogen atoms, but the former is an alternant hydrocarbon and the latter is a nonalternant hydrocarbon. This leads to a large difference in their electronic and transport properties. Herein,
Jehan Alqahtani +2 more
doaj +1 more source
Zur Kenntnis der Azulene, III. Eine Einfache Synthese Substituierter Azulene [PDF]
, 2023 Aus Pyryliumsalzen (I) und Cyclopentadien-Metallverbindungen (II) lassen sich in einfacher Weise eine Reihe substituierter Azulene in guten Ausbeuten ...
Hafner, Klaus, Kaiser, Hans
core +2 more sources
Helical Graphene Nanostructures Embedded with an Azulene Cluster [PDF]
, 2020 An azulene cluster is a structural defect of graphenes, and it alters the electronic, magnetic, and structural properties of graphenes and graphene nanoribbons.
Yousuke, Yamaoka +4 more
core +1 more source
Azulene-Based BN-Heteroaromatics
, 2019 Azulene, a nonalternant bicyclic aromatic hydrocarbon, has unique chemical and physical properties and is considered to be a promising building block for constructing novel polycyclic aromatic hydrocarbons (PAHs) and heteroaromatics.
Xiaodi Yang (469303) +7 more
core +2 more sources
Molecules, 2023 Quinolone and quinoline derivatives are frequently found as substructures in pharmaceutically active compounds. In this paper, we describe a procedure for the synthesis of azuleno[2,1-b]quinolones and quinolines from 2-arylaminoazulene derivatives, which
Taku Shoji +6 more
doaj +1 more source