Polycyclic Hydrocarbons from [4n]Annulenes: Correlation versus Hybridization Forces in the Formation of Diradicaloids

S Moles Quintero, MM Haley… - Angewandte Chemie …, 2022 - Wiley Online Library
The conceptual connections between [4n] Hückel antiaromaticity, disjoint orbitals,
correlation energy, pro‐aromaticity and diradical character for a variety of extended π …

Azulene‐Fused Acenes

A Ong, T Tao, Q Jiang, Y Han, Y Ou… - Angewandte …, 2022 - Wiley Online Library
Non‐alternant non‐benzenoid π‐conjugated polycyclic hydrocarbons (PHs) are expected to
exhibit very different electronic properties from the all‐benzenoid PHs. Herein, we report the …

The road to bis‐periazulene (cyclohepta[def]fluorene): Realizing one of the long‐standing dreams in nonalternant hydrocarbons

A Konishi, K Horii, M Yasuda - Journal of Physical Organic …, 2023 - Wiley Online Library
The chemistry of nonalternant hydrocarbons has recently experienced a considerable
resurgence. As the relationship between naphthalene and azulene shows, an important …

A highly efficient open-shell singlet luminescent diradical with strong magnetoluminescence properties

A Abdurahman, L Shen, J Wang, M Niu, P Li… - Light: Science & …, 2023 - nature.com
Developing open-shell singlet (OS) diradicals with high luminescent properties and
exceptional single-molecule magnetoluminescence (ML) performance is extremely …

Tetra‐tert‐butyl‐s‐indacene is a Bond‐Localized C2h Structure and a Challenge for Computational Chemistry

LJ Karas, S Jalife, RV Viesser… - Angewandte Chemie …, 2023 - Wiley Online Library
Whether tetra‐tert‐butyl‐s‐indacene is a symmetric D2h structure or a bond‐alternating C2h
structure remains a standing puzzle. Close agreement between experimental and computed …

A highly stable organic luminescent diradical

A Abdurahman, J Wang, Y Zhao, P Li… - Angewandte Chemie …, 2023 - Wiley Online Library
It is very challenging to obtain stable room‐temperature luminescent open‐shell singlet
diradicals. Herein we report the first stable Müller's hydrocarbon TTM‐PhTTM with …

Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet–triplet gaps

MH Garner, JT Blaskovits, C Corminboeuf - Chemical Science, 2023 - pubs.rsc.org
Molecules where the first excited singlet state is lower in energy than the first excited triplet
state have the potential to revolutionize OLEDs. This inverted singlet–triplet gap violates …

Stair-like narrow N-doped nanographene with unusual diradical character at the topological interface

Z Li, Y Tang, J Guo, J Zhang, M Deng, W Xiao, F Li… - Chem, 2023 - cell.com
The π-magnetism of finite-sized nanoribbons occurring on the topological molecular
interfaces remains largely unexplored due to limited experimental examples. Herein, we …

Fused Indacene Dimers

T Xu, X Hou, Y Han, H Wei, Z Li, C Chi - Angewandte Chemie, 2023 - Wiley Online Library
Polycyclic hydrocarbons consisting of two or more directly fused antiaromatic subunits are
rare due to their high reactivity. However, it is important to understand how the interactions …

Red Emissive Double Aza [7] helicenes with Antiaromaticity/Aromaticity Switching via the Redox‐Induced Radical Cation and Dication Species

C Li, C Zhang, P Li, Y Jia, J Duan, M Liu… - Angewandte Chemie …, 2023 - Wiley Online Library
We herein present the synthetic approach to a new antiaromatic double aza [7] helicene C
that features NN‐embedded polycyclic aromatic hydrocarbons (PAHs). This heteroatom …