Fig. 4. The experimental CPA/imine 1JHN coupling constants are shown for E- and Z-imines of 3, 4 and 5. The following trend is observed for the E-imines: 1JHN TRIP < 1JHN TIPSY < 1JHN TRIM < 1JHN TRIFP. For Z-complexes slightly different trend was found: 1JHN TIPSY < 1JHN TRIP < 1JHN TRIM < 1JHN TRIFP. Due to overlap the 1JHN of TRIP/4Z was determined from HN-HMBC spectra (marked by an asterisk; for all values see ESI† Chapter 3.3).
