Abstract
An aqueous solution of 3-aminopropyltriethoxysilane reacts with suspensions of crystalline zinc(II) (1-hydroxyethylidene)diphosphonates H2ZnL·2H2O and manganese(II) H2MnL·3H2O to give heavy precipitates of amorphous bis(3-aminiumpropylsilsesquioxane)(1-hydroxyethylidene)zinc(II) diphosphonate tetrahydrate and bis(3-aminium propylsilsesquioxane)(1-hydroxyethylidene)manganese(II) diphosphonate trihydrate. Structure of the prepared compounds was studied by elemental, thermal, X-ray phase analysis, IR spectroscopy, and scanning electron microscopy. The specific surface areas of the initial xerogels and products of their thermal decomposition were measured.
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