Rational synthesis of atomically precise graphene nanoribbons directly on metal oxide surfaces

M Kolmer, AK Steiner, I Izydorczyk, W Ko, M Engelund… - Science, 2020 - science.org
Atomically precise graphene nanoribbons (GNRs) attract great interest because of their
highly tunable electronic, optical, and transport properties. However, on-surface synthesis of …

Alkyne benzannulations in the preparation of contorted nanographenes

KM Magiera, V Aryal, WA Chalifoux - Organic & Biomolecular …, 2020 - pubs.rsc.org
Nanographenes are a popular area of research due to their promising properties for
electronics. Over the last twenty years there has been a significant increase in interest in the …

Twenty Years of Graphene: From Pristine to Chemically Engineered Nano-Sized Flakes

P Izquierdo-García… - Journal of the …, 2024 - ACS Publications
It is a celebratory moment for graphene! This year marks the 20th anniversary of the
discovery of this amazing material by Geim and Novoselov. Curiously, it coincides with the …

Perylene‐Based Linear Nonalternant Nanoribbons with Bright Emission and Ambipolar Redox Behavior

Y Wang, Y Huang, T Huang, J Zhang… - Angewandte Chemie …, 2022 - Wiley Online Library
Here we report stepwise solution‐synthesis of linear nonalternant nanoribbons (NNRs),
featuring pentagonal rings peri‐fused onto the repeating perylene unit. The X‐ray single …

Alumina-mediated π-activation of alkynes

V Akhmetov, M Feofanov, DI Sharapa… - Journal of the …, 2021 - ACS Publications
The ability to induce powerful atom-economic transformation of alkynes is the key feature of
carbophilic π-Lewis acids such as gold-and platinum-based catalysts. The unique catalytic …

Single Crystal Growth of Cyclopenta-Fused Polycyclic Aromatic Hydrocarbon by the Naphthalene Flux Method: 2D Ambipolar Charge Transport Properties and NIR …

H Tanoguchi, T Yuki, S Yokokura… - ACS Applied …, 2023 - ACS Publications
Compared to simple p-and n-type organic field-effect transistors, it is very difficult to achieve
high performance in ambipolar transistors because both HOMO–HOMO and LUMO–LUMO …

Cycl [2, 2, 4] azine-embedded non-alternant nanographenes containing fused antiaromatic azepine ring

L Ruan, W Luo, H Zhang, P Liu, Y Shi, P An - Chemical Science, 2024 - pubs.rsc.org
The development of non-alternant nanographenes has attracted considerable attention due
to their unique photophysical properties. Herein, we reported a novel aza-doped, non …

2,7,11,16‐Tetra‐tert‐Butyl Tetraindenopyrene Revisited by an “Inverse” Synthetic Approach

SM Elbert, A Haidisch, T Kirschbaum… - … A European Journal, 2020 - Wiley Online Library
A new synthetic route to tetraindenopyrene (TIP)—a bowl‐shaped cut‐out structure of C70—
is reported. The key step in this approach is a fourfold palladium‐catalyzed C− H activation …

Pitched π-Stacking Crystal Structure and Two-Dimensional Electronic Structure of Acenaphtho [1, 2-k] fluoranthene Analogues with Various Substituents

T Yuki, S Yokokura, M **, H Waizumi… - Crystal Growth & …, 2024 - ACS Publications
Electronic properties of organic semiconductors are governed by their crystal structures.
Rubrene, a high-mobility organic semiconductor, forms a pitched π-stacking structure. We …

Acenaphthenoannulation Induced by the Dual Lewis Acidity of Alumina

V Akhmetov, M Feofanov… - … A European Journal, 2022 - Wiley Online Library
We have discovered a dual (ie, soft and hard) Lewis acidity of alumina that enables rapid
one‐pot π‐extension through the activation of terminal alkynes followed by C− F activation …