Two new 1,8-naphthalimides (NI), emitting yellow-green or blue fluorescence depending on the type of substituents at C-4 position, have been synthesized and characterized. Their basic photophysical characteristics investigated in organic solvents different polarities. ability to detect metal ions (Ag+, Cu2+, Zn2+ Ca2+, Mg2+, Ni2+, Fe3+) has studied DMF solution. The amino (NI1) alkoxy (NI2) fun...

Chemosensors are compounds that incorporate a receptor unit and a reporter unit in a single molecule. A chemosensor transforms the action of binding to a specific analyte into a readable signal. Chemosensors have enabled the study of molecular interactions in a range of different media and interfaces. This offers a non-invasive approach to observe living biological samples in real time without ...

We have previously reported that metal ion binding could restrict the excited state rotation of a biaryl chromophore, suppressing intersystem crossing and leading to increased emission. We have now applied the restriction of excited state dynamics to suppression of the other fundamental nonradiative decay pathway, internal conversion, in biarylacetylenes. This indicates that both nonradiative d...

The topochemical reactivity of diacetylene monomers has long been established and involves the 1,4-addition polymerization reaction. This reaction is governed by well-defined parameters that allow synthesis polymers. Polydiacetylenes are conjugated polymers display unique colorimetric fluorescent transitions when they exposed to a range stimuli, allowing them be easily exploited in biosensors, ...