Budyka, Mikhail F. published the artcileProton-driven “one-way” photoisomerization due to energy transfer switching in styrylquinoline-merocyanine dyad, Related Products of iodides-buliding-blocks, the publication is Journal of Photochemistry and Photobiology, A: Chemistry (2014), 59-64, database is CAplus.
Photophys. and photochem. properties of the novel bichromophoric covalently linked dyad SQ3MC, where 2-styrylquinoline (SQ) and merocyanine (MC) chromophoric groups are connected by dioxytrimethylene bridge O-(CH2)3O, in comparison with model compounds 2-(4-methoxystyryl)quinoline MeSQ and 1-ethyl-2-(4-methoxystyryl)quinolinium perchlorate, which is O-methylated merocyanine MeMC, are investigated. In dyad SQ3MC, trans → cis photoisomerization of SQ moiety is quenched because of competing Forster resonance energy transfer (FRET) to MC fragment. However, reaction is switched on in protonated quasisym. dyad where pos. charged SQ fragment obtains the same chromophoric π-system as in MC chromophore. After deprotonation, photoisomerization of SQ fragment in trans → cis direction is again switched off but goes in cis → trans direction. Effect of “one-way” photoisomerization in the dyad SQ3MC is kinetic in nature and based on the difference in rates of competing processes in the excited state, in contrast to well-known one-way reactivity of diarylethylenes with large aryl substituents, where effect is thermodn. in nature and based on the difference in energies of the excited-state isomers and conformers.
Journal of Photochemistry and Photobiology, A: Chemistry published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C12H14IN, Related Products of iodides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com