A methine-bridged trithiophene with a thienoquinoid core undergoes photoisomerization of both C═C bonds, affording three geometrical isomers in a ratio controlled by the irradiation wavelength. Despi....

Positional isomers of substituted pyrazines—important aroma compounds and pharmacophores—are notoriously difficult to distinguish because of their nearly identical physical properties, and hosts that ...

Achieving multi-site photoisomerization within a single π-conjugated scaffold while retaining luminescent functionality remains a formidable challenge, as electronic coupling between isomerizable units typically promotes intramolecular energy transfer ...

Lanthanum β-tetracyanoporphyrin double-decker complexes underwent unprecedented four-electron reduction, reaching their pentaanionic states. The cyano groups increased the reduction potentials by 1.3...

Porphyrin double-decker complexes undergo multiple redox processes that significantly alter their structural and electronic properties, although most studies have focused on oxidation processes. Studi...

Gallium porphyrins bearing chiral bi-2-naphtholato ligands are synthesized and characterized. Single-crystal X-ray diffraction and various spectroscopic analyses confirmed their structures. Circular ...

The stereochemistry of methine-bridged trichalcogenophenes was elucidated through comprehensive structural analyses. Trithiophene showed a strong preference for the ZZ configuration, whereas its trif...

The antiaromaticity of dithiadioxaisophlorins is controlled by the steric bulkiness of meso-substituents through their tilt angle relative to the macrocycle. Bulkier substituents maintain larger angl....

The synthesis and characterization of a novel air-stable Sn(IV) β-tetracyanoisophlorin complex is described. The complex was obtained by reducing the corresponding Sn(IV) β-tetracyanoporphyrin with h...

The unusual axial coordination on CuII and NiII ions in the cofacial cyclic porphyrin dimer was induced by its remarkably high structural rigidity without the assistance of electron-withdrawing subst...

The first stable antiaromatic trioxa[16]triphyrin(2.1.1) was synthesized and characterized using a core modification strategy. The synthesis involves a key intermediate, dihydrotrioxatriphyrin(2.1.1)...