trimethylaluminum in toluene Kinetics; a soln. in toluene was heated for 16 h at 80°C (inert atm.); not sepd., detected by NMR spectra;

[methylaluminoxane]n in deuterated toluene Kinetics; a soln. in toluene-d8 was stirred for <24 h at 80°C (inert atm.); not sepd., detected by NMR spectra;