A novel series cyanide fluorescence sensors (F1-F4) containing phenylene-ethynylene as fluorogenic center and salicylaldehyde as CN- receptor were successfully synthesized by using Sonogashira coupling reaction as a key ...

Two new compounds, 25,27-N,N'-di-((2-ethoxy)benzyl)ethylenediamine-p-tert-butylcalix[4]arene (5a) and 25,27-di-(4-pyridylmethoxy)-p-tert-butylcalix[4]arene (6) have been synthesized. 1H-NMR titration experiments in ...

For preliminary analytical screening in the field test of toxic chemicals, it is desirable to have a sensing system which is inexpensive and convenient to use. Polydiacetylene is known to possess unique colorimetric sensing ...

Diacetylenes with β-alanine ethyl ester and di-β-alanine ethyl ester were synthesized by amide coupling method using EDC and HOBt as coupling reagents. The diacetylene were fabricated onto filter paper and polymerized by ...

Two novel macrocyclic heteroditopic receptors 14 and 15 which were comprised of calixarene scaffolds and bis-thiourea binding sites bearing two amide or ester moieties at the lower rim were synthesized. The proper synthetic ...

At present, energy crisis has been the world wide problem. There are many researches which aim at finding other alternative energy sources. Solar energy has been widespread interesting. Dye sensitized solar cells (DSSCs) ...