Novel BODIPY-conjugated amino acids: Synthesis and spectral properties

Pyrene-BODIPY-substituted novel water-soluble cyclotriphosphazenes: synthesis, characterization, and photophysical properties

“…In the current study, 2 novel cyclotriphosphazene compounds (6 and 7) were synthesized using click reactions and characterized by FTIR, MS, 1 H, 13 C, and 31 P NMR spectroscopies and EA. The photophysical properties of these compounds (6 and 7) were investigated by UV-Vis and fluorescence spectroscopy and compared with their corresponding BODIPY (4 and 5) moieties.…”

“…Column chromatography was used for purification of the products. The synthesized compounds were characterized by EA, FTIR, MS, and 1 H, 13 C, and 31 P NMR spectroscopy. Mass spectra of compounds 6 and 7 are given in Figure 2.…”

“…On the other hand, a great deal of applications, such as fluorescence imaging and metal ion detection, are done in aqueous media and are frequently inhibited by the weak solubility of these dyes in water [7][8][9][10][11]. In general, there are 2 options to overcome this problem: one is linkage of water-soluble groups to the BODIPY core [12] and the other is linkage of the BODIPY dyes to a water-soluble compound [13,14].…”

“…were used to introduce fluorescent properties to the cyclotriphosphazene core and diethylene glycol methyl ether (DEGME) was used to make these compounds water-soluble. Novel cyclotriphosphazene compounds (6 and 7) (Figure 1) were defined using EA, FTIR, MS (Figure 2), and 1 H, 13 C, and 31 P NMR (Figure 3) spectroscopy. Photophysical properties of these cyclotriphosphazenes were investigated by UV-Vis and fluorescence spectroscopy and compared with their precursor BODIPYs in water and different water-miscible solvents.…”

“…A Bruker Daltonics Microflex mass spectrometer (Billerica, MA, USA) was used for recording mass spectra. The 1 H,13 C, and 31 P NMR spectra were recorded in CDCl 3 solution on a Varian 500 MHz spectrometer.…”