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 …

Modification of aromaticity is regarded as one of the most interesting and important research
topics in the field of physical organic chemistry. Particularly, porphyrins and their analogues …

For the concept of aromaticity, energetic quantification is crucial. However, this has been
elusive for excited-state (Baird) aromaticity. Here we report our serendipitous discovery of …

Conspectus Aromaticity, the special energetic stability derived from cyclic [4 n+ 2] π-
conjugated electronic structures, has been the topic of intense interest in chemistry because …

Classic formulations of aromaticity have long been associated with topologically planar
conjugated macrocyclic systems. The theoretical possibility of so-called bicycloaromaticity …

Aromaticity of photoexcited molecules is an important concept in organic chemistry. Its
theory, Baird's rule for triplet aromaticity since 1972 gives the rationale of photoinduced …

Expanded porphyrins are flexible enough to switch between different π-conjugation
topologies, namely Möbius, Hückel and twisted-Hückel, each with distinct electronic …

Aromaticity can be a useful concept for predicting the behavior of excited states. Here we
show that π-conjugated porphyrin nanorings exhibit size-dependent excited-state global …

Aromaticity is a fundamental chemical concept of ever-increasing diversity. According to
Hückel's and Baird's rules, cyclic conjugated species with 4 n+ 2 π-electrons are aromatic in …

In organometallic complexes containing π-conjugated macrocyclic chelate ligands,
conformational change significantly affects metal–ligand electronic interactions, hence …