Mehta, Ruhi; Luxami, Vijay published the artcile< A Novel ′On-Off′ Rhodamine Based Sensor for Colorimetric Detection of CN- and Its Application as Encoder-Decoder and Molecular Keypad Lock>, Reference of 950846-89-6, the main research area is rhodamine based sensor colorimetric detection mol keypad lock.
A novel rhodamine-phenalenedicarbonitrile based “”on-off”” sensor (Rho-Pdc) has been synthesized which is characterized by 1H NMR, 13C NMR and mass spectrometry. The photophys. studies of the dyad suggest its existence in spirolactam ring open form of rhodamine. ICT (Intramol. Charge Transfer) active sensor displays an absorption band at 577 nm with a shoulder at 520 nm and fluorescence band at 593 nm. The treatment of dyad Rho-Pdc with different anions shows its sensitivity and selectivity towards CN- ions in aqueous methanolic solution with lowest detection limit of 0.13 μM and the binding constant was determined to be 1.17 × 104 M-1 by applying Benesi-Hildebrand equation. The presence of CN- ions hinder the ICT process of dyad Rho-Pdc and shows a blue shift in absorption band of dyad Rho-Pdc with formation of new band at 488 nm as well as decrease in the intensity of emission band. Rho-Pdc has also been used for the colorimetric detection of CN- ions among different anions and concentrations The reversibility of Rho-Pdc.CN-complex has been achieved with Fe3+ ions which formed the basis for the construction of multiple mol. logic circuits.
ChemistrySelect published new progress about Absorption. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Reference of 950846-89-6.
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles