Jiang, Daoyong; Xue, Xingying; Zhang, Guoning; Wang, Yucheng; Zhang, Han; Feng, Chao; Wang, Zhifei; Zhao, Hong published the artcile< Simple and efficient rhodamine-derived VO2+ and Cu2+-responsive colorimetric and reversible fluorescent chemosensors toward the design of multifunctional materials>, Application of C30H36N4O2, the main research area is rhodamine derivative copper vanadyl sensing colorimetric reversible fluorescent sensor.
A rhodamine-based derivative, (Z)-2-((3,5-dibromo-2-hydroxybenzylidene)amino)-3′,6′-bis(diethylamino)spiro-[isoindoline-1,9′-xanthen]-3-one (RhDBS), was chosen as a representative dual chemosensor for VO2+ and Cu2+ among twenty-five Schiff-base receptors. It was synthesized by Schiff-base condensation and characterized by standard techniques including single crystal x-ray crystallog. RhDBS can hypersensitively detect VO2+via fluorescence off-on type switching with a high quantum yield. Meanwhile, the chemosensor exhibits Cu2+-selective chromogenic behavior and Cu2+ ions can be detected by the naked-eye. The detection limits for VO2+ and Cu2+ are 3.65 nM and 0.84 μM, resp., which are much lower than the allowable maxima set by the WHO, demonstrating the reliability and high efficiency of this chemosensor. Job’s plot and mass spectral anal. show 1 : 1 stoichiometry between RhDBS and metal ions. RhDBS also showed distinct responses to VO2+ through electrochem. (CV) signals. Addnl., the RhDBS·Cu2+ and RhDBS·VO2+ adducts can act as two secondary colorimetric and fluorescent sensors for pyrophosphate (PPi) anions. Advanced mol. memory devices were constructed through these properties and interpreted. Notably, the anal. applicability of RhDBS can be further achieved by using test paper strips and silica gel plates. More excitingly, RhDBS can be resoundingly employed to trace intracellular VO2+ ions in living cells and it is the 1st reported smart chemosensor capable of detecting VO2+in vitro. In the solid state, RhDBS displays distinguished VO2+ and Cu2+ responsiveness along with obvious color changes and different emission wavelengths which lead to large red shifts of the CIE-diagram. More importantly, some meaningful regular patterns are discovered for the 1st time through theor. and exptl. studies toward the design of multifunctional materials.
Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about Colorimetry. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Application of 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