this research is an attempt to measure the effect of alkyl tail on the visible spectra and order parameters s of some azo n-ester-1,8-naphthalimide(anen) disperse dyestuff. for the first time, the visible absorption spectra of two azo n-ester-1,8-naphthalimide(anen) dyes with identical molecular size and diverse alkyl tails were obtained in liquids and liquid crystalline solvent. ordinary organ...

A multi-stimuli responsive pseudo [3]rotaxane NI-DBC/RB-DBA was composed of a green-emissive (λem = 530 nm) naphthalimide-based macrocyclic host and turn-on red-emissive 595 rhodamine-based guest towards Fe3+ ion, which illustrated interesting photo-physical properties in dioxane/H2O (4:6, v/v) solutions. Due to the chelation-induced ring unfolded form rhodamine unit upon addition mono-fluoroph...

A new fluorescent sensor 1, based on the naphthalimide chromophore and thioether-rich crown receptor, exhibited dual signaling behaviors for Hg(2+) and Ag(+) in aqueous solution. Upon addition of Hg(2+), the fluorescence intensity enhanced in a linear fashion with a quantum yield increase of about 5-fold. Moreover, with the 1-Hg(2+) complex, Ag(+) was easily recognized by a marked fluorescence ...

A series of polymer chemosensors containing naphthalimide signal moiety and imide recognition moiety for the selective detection of fluoride ions (F(-) ) were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymer chemosensors display obvious absorption and fluorescence variations upon the addition of F(-) , which can be observed by both naked eyes an...

A series of π conjugated naphthalimide derivatives having an imide group as an acceptor conjugated with a methoxy arylethynyl or a methoxyphenyl triazole as a donor were prepared by Sonogashira coupling or "click" chemistry. Their photophysical properties were investigated by steady state and time resolved fluorescence spectroscopy and modelled by TD-DFT calculations. Compound Naphth-AlkyneOMe ...