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 …

Conspectus Aromaticity is one of the most important concepts in organic chemistry to
understand the electronic properties of cyclic π-conjugated molecules. Over a century …

In this review, the multifunctionality of dithieno [3, 2-b: 2′, 3′-d] thiophenes (DTTs) is
covered comprehensively. This is of interest because all involved research is very recent …

Several fully π-conjugated macrocycles with puckered or cage-type structures were recently
found to exhibit aromatic character according to both experiments and computations. We …

Recently, Baird (anti) aromaticity has been referred to as a description of excited-state (anti)
aromaticity. With the term of Baird's rule, recent studies have intensively verified that the …

Aromaticity can be defined by the ability of a molecule to sustain a ring current when placed
in a magnetic field. Hückel's rule states that molecular rings with [4 n+ 2] π-electrons are …

Singlet fission, the process of forming two triplet excitons from one singlet exciton, is a
characteristic reserved for only a handful of organic molecules due to the atypical energetic …

Aromaticity is a vital concept that governs the electronic properties of π-conjugated organic
molecules and has long been restricted to 2D systems. The aromaticity in 3D π-conjugated …

The non-innocent ligand nature of porphyrins was observed for compound I in enzymatic
cycles of cytochrome P450. Such porphyrin radicals were first regarded as reactive …

Photoacoustic imaging (PAI) relies on the use of contrast agents with high molar absorptivity
in the NIR-I/NIR-II region. Expanded porphyrins, synthetic analogues of natural tetrapyrrolic …