This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules
with a focus on structural diversity and synthetic methodology. The article covers literature …

Helicenes have attracted considerable attention due to their inherent helical chirality and
extended π-conjugation. Recently, rapid progress has been witnessed in the preparation of …

Conspectus Understanding and harnessing the properties of nanoscale molecular entities
are considered as new frontiers in basic chemistry. In this regard, synthetic nanographene …

Molecular conformation has an important role in chemistry and materials science. Molecular
nanoribbons can adopt chiral twisted helical conformations. However, the synthesis of single …

Herein, we report the synthesis, structural analysis, optical and chiroptical properties of a
novel quadruple helicene, which has two [6] and two [7] helicene moieties fused in a …

Herein, a nitrogen-embedded quintuple [7] helicene (N-Q7H) with an
azapentabenzocorannulene core, which can be considered to be a helicene …

This work reports the first double π‐extended undecabenzo [7] helicene 1, which is a large
chiral nanographene, composed of 65 fused rings and 186 conjugated carbon atoms. The …

The synthesis of three molecular nanoribbons with a twisted aromatic framework is
described. The largest one shows a 53 linearly fused rings backbone (12.9 nm) and 322 …

We designed a straightforward synthetic route towards a full‐fledged family of π‐extended
helicenes: superhelicenes. They have two hexa‐peri‐hexabenzocoronenes (HBCs) in …

Helicenes are attractive non-planar polycyclic aromatic hydrocarbons with unique optical
and electronic properties. In recent years, the chemistry of “multiple helicenes” with plural …