1346946-98-2Relevant academic research and scientific papers
Photochromism and metal complexation of a macrocyclic styryl naphthopyran
Tulyakova, Elena V.,Fedorova, Olga A.,Micheau, Jean-Claude,Paramonov, Sergey V.,Lokshin, Vladimir,Vermeersch, Gaston,Delbaere, Stephanie
, p. 1294 - 1301 (2011)
A macrocyclic benzo-15-crown-5 ether unit tethered to a photochromic naphthopyran by a styryl spacer (MEN) is shown to form a 1:1 complex with magnesium(II). The structure and dynamics of the specific host-metal interactions were investigated by PFG-NMR analysis. A combination of UV/Vis and variable temperature multi-dimensional 1H NMR photokinetic analysis of the crown-containing styryl naphthopyran and its metal complex was used to probe the effect of metal complexation on the photochromism. Now you see it...: The behavior of the hybrid biphotochromic system based on a thermally reversible naphthopyran and an alkaline-earth cation binding benzo-15-crown-5 macrocycle linked by a photochemically bistable stilbene moiety is discussed (see picture). Copyright
