Thermal Decomposition of Complexes of Aluminium Hydride With Trimethylamine and <i>N</i>-Heterocyclic Carbene
Thermal decomposition of aluminium hydride complexes with trimethylamine and N-heterocyclic carbene 1,3-bis-(2,6-diisopropylphenyl)-1,3-dihydro-2 H -imidazole-2-ylidene (IDipp) was studied using static tensimetry method with membrane null-manometer. Complex AlH3·NMe3 vaporizes in monomeric form and slowly decomposes in unsaturated vapor at 70-80°C into solid aluminium and gaseous trimethylamine and hydrogen. Decomposition is accompanied by the induction period, which lowers upon temperature increase. Complex AlH3·IDipp slowly decomposes at 170-200°С, the decomposition rate is independent from the temperature.