Photochromic properties of composite films of thermally irreversible diarylethenes and fulgimides in polytetrafluoroethylene matrix

Photochromic polymeric thin films have been prepared by vacuum codeposition of polytetrafluoroethylene (PTFE) and thermally irreversible photochromic compounds: the cyclopentene derivative of diarylethene and fulgimide. Their photochromic properties were studied using the spectral-kinetic method as compared with polymethyl methacrylate (PMMA) films filled with the same photochromic compounds prepared using the spin coating method. The films prepared using codeposition in vacuum are characterized by photochromic properties acceptable for recording media for 3D optical memor

Quantitative study of photochromic transformations of diarylethene derivatives with either perhydrocyclopentene or oxazolone or lactone units

International audienc

Novel azacrown ether-containing spiro[indoline-2,3′-naphth-oxazines]: Design, synthesis and cation-dependent photochromism

Novel spironaphthoxazine compounds with an aza-15-crown-5 ether fragment at position 5′ or 9′ of the naphthalene ring were synthesized. Spectrokinetic measurements showed the occurrence of two competing formation processes for complexation with alkaline earth or rare earth metal cations. A comparative study of the prepared compounds demonstrated the role of molecular design and the metal cation nature in the cation-dependent photoinduced transformation of spiro[indoline-naphthoxazines].SCOPUS: ar.jinfo:eu-repo/semantics/publishe