The 1H NMR spectra of methylmethoxyaluminium chloride and methylmethoxyaluminium iodide

Abstract It has been shown by means of 1 H NMR, IR and cryometrical measurements that, with oxygen bridges, Me(OMe)AlCl and Me(OMe)AII are trimers in solutions. Two isomers, cis and trans , are present, which are responsible for the multiple 1 H NMR spectra. The proton signals of MeAl and OMe groups are assigned in each isomer.