“…Additionally, to probe the role of sterics in achieving κ 5 -N,N,N,N,N-rather than κ 4 -N,N,N,N-PDI chelation, the amine substituents were varied to include either methyl or isopropyl groups. [20,21,23,24,26,29,31,33] After stirring for 24 hours, evacuation of the solvent followed by washing of the solid with pentane allowed isolation of ( iPr 2 NEt PDI)RhCl (1-Cl) and ( Me 2 NPr PDI)RhCl (2-Cl), respectively [Equation (2)]. of either N,N-diisopropyl-1,2-ethanediamine or N,N-dimethyl-1,3-propanediamine afforded 2,6-(((CH 3 ) 2 -CH) 2 NCH 2 CH 2 N=C(CH 3 )) 2 [20,21,23,24,26,29,31,33] this approach to metallation was chosen as an entry point for investigating the coordination preferences of the newly prepared chelates.…”