The unique open-shell electronic structure of neutral π-radicals has inspired research on
novel molecular materials for over a century. In recent years, rapid development in carbon …

“Kekulene” is a doughnut-like shaped polycyclic aromatic hydrocarbon consisting of
cyclically arrayed benzene rings. It has attracted a great deal of theoretical interest because …

Diradicaloid helicenes constructed formally by non‐benzenoid double π‐extension of
phenanthrene were synthesized by a common strategy involving double electrophilic …

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 …

We report the synthesis and optoelectronic properties of TIPS‐peri‐pentacenopentacene
(TIPS‐PPP), a vertical extension of TIPS‐pentacene (TIPS‐PEN) and a low‐band‐gap …

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

5, 14-Diaryldiindeno [2, 1-f: 1′, 2′-j] picene (DDP, 1), a thermally and chemically stable
helical arene, can be prepared from 1, 4-bis [2-(arylethynyl) phenyl] benzene in four …

The development of the chemistry of non‐alternant non‐benzenoid hydrocarbons is
reviewed in connection with the I nternational S ymposium on N ovel A romatic C ompounds …

Indeno [1, 2-b] fluorenes (IFs), while containing 4n π-electrons, are best described as two
aromatic benzene rings fused to a weakly paratropic s-indacene core. In this study, we find …

Diindeno‐fused bischrysene, a new diindeno‐based polycyclic hydrocarbon (PH), was
synthesized and characterized. It was elucidated in detailed experimental and theoretical …