The electronic properties of finite-sized graphene fragments are strongly dependent on their
topological structures. The existence of two or more extended zigzag edges could lead to …

Conspectus Researchers have studied polycyclic aromatic hydrocarbons (PAHs) for more
than 100 years, and most PAHs in the neutral state reported so far have a closed-shell …

Organic radicals can potentially play important roles in functional materials owing to an
unpaired electron, but they are usually highly reactive and difficult to use. Therefore …

The synthesis and isolation of hydrocarbons with a triplet ground state in crystalline forms
have been sought in materials science. Triangulene is one of the most famous triplet-ground …

Higher order acenes (ie, acenes longer than pentacene) and extended zethrenes (ie,
zethrenes longer than zethrene) are theoretically predicted to have an open-shell singlet …

A novel class of dibenzo-fused 1, 9-diaza-9a-boraphenalenes featuring zigzag edges with a
nitrogen–boron–nitrogen bonding pattern named NBN-dibenzophenalenes (NBN-DBPs) …

High‐spin conjugated radicals have great potential in magnetic materials and organic
spintronics. However, to obtain high‐spin conjugated radicals is still quite challenging due to …

Triangulene, known as Clar's hydrocarbon, is a prototypical non-Kekulé diradical comprised
of six benzenoid rings fused in a triangular shape. We synthesized and characterized its …

By virtue of multitunable spin structures upon designing the π-electron topologies,
phenalenyl-based nanographenes are of substantial interest in fundamental science and for …

Open-shell singlet diradicaloids display unique electronic, nonlinear optical, and magnetic
activity and could become novel molecular materials for organic electronics, photonics, and …