Abstract
Phosphorescence spectra of the benzophenone capsulated into the inner space of mesoporous aluminosilicate molecular sieves of the MCM-41 type (the diameter of channels is about 4nm) have been analyzed at the 4.2–200K temperature range. For the comparison phosphorescence spectra of the bare MCM-41 matrix, pure benzophenone (at the same temperature region) and of the benzophenone incorporated to the porous glass with 54nm pore diameter at T=40K have been obtained. Some important conclusions about the phase state of encapsulated molecules have been made and a possible mechanism of the interaction between the filler and matrix active centers located on the pore inner surface (of the Si–OH type) has also been suggested using results of the NIR spectra investigation of the benzophenone included in the porous glass.
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