The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Porphyrin–azobenzene triad E-2, having ester spacers between the chromophores, was synthesized and its photochemical and thermal isomerization properties were investigated. Triad E-2 showed little electronic communication among the chromophores according to a comparison of the steady-state absorption and fluorescence spectra of E-2 and their model compounds. E-2 showed photochemical E–Z isomerization...
The syntheses and reactions of photoresponsive dendrimers are described. Dendrimers with photoreversible stilbene cores undergo mutual cis-trans isomerization in organic solvents to give photostationary state mixtures of cis- and trans-isomers. Even stilbene dendrimers with molecular weights as high as 6500 underwent mutual cis-trans isomerization within the lifetime of the excited singlet state....
Water-soluble azobenzene-cored dendrimers 4–6 were synthesized as potential photoresponsive micelles to which the aggregation is triggered by photoirradiation. In the absorption spectra, the π–π∗ absorption band of the dendrimers largely blue-shifted with increasing the generation due to the shielding effect of surrounding dendron on the interaction between the core azobenzene and solvent water. Not...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.