Parameters Conditions Temperature 25 °C Pulse flip angle 45.0 ° Acquisition time 2.55 s Relaxation delay time 5.00 s     Number of scans 256 Sweep width 6410.3 Hz FT size 32768 points complex Carrier frequency 399.8372832 MHz Total scan time 32 min Solvent CDCl3 Reference TMS

Table 1: Conditions for 1H NMR measurements.