Gas chromatogram of the C10 alkenes (black, bottom trace) obtained by fractional distillation from the reaction of 1/MMAO/ethylene/1-hexene; the products appear at 36.98, 37.19, 37.38, 37.75, 37.86, 38.07 min. The C10 olefin standards are shown directly above (from top to bottom, RT = retention time in min): cis-5-decene (H, light blue; 38.08), cis-4-decene (I, brown; 38.07), 1-decene (J, pink; 37.84), trans-4-decene (K, purple; 37.86), trans-5-decene (L, blue; 37.90), 2-butyl-1-hexene (M, green; 37.76), 5-methyl-1-nonene (N, yellow; 37.44), 4-ethyl-1-octene (O, orange; 37.22), 3-propyl-1-heptene (P, red; 37.02). The peak marked with an asterisk (*) is the trans-4-decene impurity present in the 3-propyl-1-heptene standard (see SI).