42485-26-7Relevant academic research and scientific papers
Pyrimidine based highly sensitive fluorescent receptor for Al3+ showing dual signalling mechanism
Upadhyay,Kumar, Ajit
experimental part, p. 4892 - 4897 (2010/11/24)
A new fluorescent probe (5-[(4-diethylamino-2-hydroxy-benzylidene)-amino]- 1H-pyrimidine-2, 4-dione) (Receptor1) has been synthesized by the Schiff base condensation of 5-aminouracil with 4-(diethylamino)salicylaldehyde. The receptor 1 exhibits high selectively for Al3+ in DMSO as well as in aqueous solution even in the presence of biologically relevant cations such as Na +, K+, Ca2+, Mg2+, Pb2+ and several transition metal ions. The lowest detection limit for the receptor 1 was found to be 1.62 × 10-10 M with its linear response towards Al3+ in the concentration range of 1.75 × 10 -9 to 3.3 × 10-8 M in DMSO. Receptor 1 is the first ever example where a single molecular probe is able to show imine (CN) isomerization inhibition along with twisted intramolecular charge transfer (TICT) in combinatorial fashion.
