Mallick, Debajani; Bag, Bamaprasad published the artcile< Altered metal ion selectivity in signalling with heterocyclic tripodal receptor appended rhodamine-B derivatives>, Formula: C30H36N4O2, the main research area is metal ion selectivity fluorescent sensor rhodamine B derivative.
The rhodamine derivatives (2-7) were shown to exhibit metal ion complexation induced photophys. ‘turn-on’ signalling responses, where the selectivity in signalling were driven by stereo-electronic environment of the receptor units that structurally differ as derivatization of different heterocyclic units. The chromogenic and fluorogenic spectral enhancements of two order higher in logarithmic scale were observed in these tripodal receptor incorporated amino-ethyl-rhodamine probes, where substitution of a 2-[2-[(thiophen-2-yl-methyl)-(2-pyridinylmethyl)-amino]-ethyl]- (as in 3) has shown selectivity for Hg(II) ion, a 2-[2-[(furan-2-yl-methyl)-(2-pyridinyl methyl)-amino]-ethyl]- (as in 5) for Al(III) ion and a 2-[2-[(phen-2-ylmethyl)-(2-pyridinylmethyl)-amino]-ethyl]- (as in 7) for Fe(III) ion resp. The higher order of association constants (log Ka > 9.0) of complexation, high sensitivity of detection(LOD < 2 nM) and higher rate of interaction between probe and metal ion (k ∼ 0.001 s-1) have showed potential of these probes in selective detection of corresponding metal ions. In general, the investigations on complexation induced photophys. signalling in these probes in terms of selectivity and sensitivity of detection, association constants of complex formation, reversibility in signalling, execution at different pH range, kinetics of spiro-ring opening and theor. structure elucidation have therefore put insights on their coordination mediated stereo-electronic environment to establish a rationality in structure-function correlation. Dyes and Pigments published new progress about Density functional theory. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Formula: C30H36N4O2.
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