WebNov 1, 1999 · Since photochromism in this class of compounds is attributed to geometrical isomerization, then must be sensitive to molecular environment. Indeed, a number of thermochromic anils investigated, lose this property and become photochromic in the environment of cyclodextrins (CDs) as it was shown by the absorption spectra of the … WebNov 24, 2014 · Aromatic anils, from which one can highlight N-salicylidene anilines and N-salicylidene aminopyridines, constitute a perfect example of a very versatile system with switching properties in solid state between thermo- and photochromism [1]. Due to the intramolecular hydrogen bond, these two properties are based essentially on the same …
Organic Photochromics SpringerLink
WebMar 11, 2024 · This review presents the results of research obtained mainly at the Photochemistry Center of the Russian Academy of Sciences, including those with the … WebPhotochromism is the process of light-induced reversible color changes in a medium or more generally of their absorption spectra . Photochromic compounds can exist in two different states, A and B, whose relative concentration depends on the wavelength of the incident light. ... Intramolecular hydrogen transfer is found in anils ... small paper bags with logo
Photochromism in Anils - A Review Semantic Scholar
WebNov 4, 2004 · This tutorial review describes in a brief historical perspective the most important organic compounds that exhibit photochromism in the crystalline state since its discovery in 1867 up to now and considers in detail Schiff bases of … WebPhotochromic property in 'Anils' is a characteristic of the molecule, but their chromo behaviour is not only influenced by the crystal structure of anils but also by the … WebPhotochromism can be described as a reversible conversion of a chemical species between two isomeric forms caused by the electromagnetic radiation absorption, resulting in a color change (Reis et al., 2024). Figure 1a shows the evolution of publications over the years considering the keyword photochromism in Scopus website. Based on the ... sonoran desert insects