Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Inside Cover: “Conformational” Solvatochromism: Spatial Discrimination of Nonpolar Solvents by Using a Supramolecular Box of a π-Conjugated Zinc Bisporphyrin Rotamer (Angew. Chem. Int. Ed. 28/2008)
Conformational solvatochromism has been used to discriminate nonpolar solvents by using a self-assembled chromophoric molecule. A. Tsuda, T. Aida, and co-workers describe in their Communication on page 5153 ff. the self-assembly of a bis(zinc pyridylporphyrin) rotamer with a π-conjugated linker to give a mixture of supramolecular boxes composed of planar and perpendicular conformers. The ratio of the two boxes changes depending on the solvent, and leads to a solvatochromic response.