Aluminosiloxane compounds. Part II. Compounds of formula C8H24Al3X5O6Si4(X = Cl or Br): structure, and reaction with sodium acetylacetonate

Abstract

The synthesis of the compound of formula C₈H₂₄Al₃Br₅O₆Si₄(I) from the reaction of octamethylcyclotetrasiloxane with aluminium bromide or with Me₃Si·O·AlBr₂ has been studied. With the latter, polyaluminium-organosiloxanes of formula [C₂H₆AlBrO₂Si]_n are also formed. Information has been obtained about the structure of compound (I) and its chloro-analogue, C₈H₂₄Al₃Cl₅O₆Si₄, and about their reactions with sodium acetylacetonate.