Furthermore, 1H NMR data were recorded using an AVANCE III 500 MHz spectrometer (Switzerland), operating at 500 MHz using a 5 mm broadband inverse Z-gradient probe in CDCl₃ as solvent, as shown in Table S2. FT-IR spectra illustrated in Table S3 are obtained on a Nicolet iN10 Fourier Transform Infrared Spectrometer (USA), which can be scanned 32 times in a scanning range of 400-4000 cm^-1.