Aminoalkoxo-supported heteroleptic hexanuclear gallium(iii) wheel as a synthon for group 13 heterometallics: A rare sol-gel precursor for mixed Al-Ga oxide as support for gold catalysts

摘要

A new heteroleptic gallium(iii) complex, Ga_6Cl _6(mdea)_6 (1·2CHCl_3) (mdeaH_2 = N-methyl diethanolamine) was prepared in good yield by a chloro-aminoalkoxo exchange reaction and used as a synthon for the synthesis of a novel group 13 heterometallic derivative, Ga_2Al_4(O)_2(mdea) _2(OPr~i)_(10) (2·2CHCl_3), the latter acting as a facile single source precursor for the sol-gel preparation of the mixed Al-Ga oxide as a high surface area support for gold catalysts.