On the Relationship between Two Types of Effects Caused by Color Adaptation: Changes in Color Appearance and Color Discriminability

Solvent Effects on the Thermal and Photo

Solvent Effects on the Thermal and Photochemical Reactions of 4′-Iodo-8-methoxyflavylium and Their Consequences on the Coloring Phenomena Caused by Anthocyanins in Plants

✍ Raquel Gomes; A. Jorge Parola; João C. Lima; Fernando Pina 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 182 KB

## Abstract The chemistry and photochemistry of the compound 4′‐iodo‐8‐methoxyflavylium tetrafluoroborate was studied in solvent mixtures of water and ethanol. The __trans__‐chalcone form (**Ct**) is always the most stable species at equilibrium. In particular, for the first time, **Ct** and not th