We report the formation of monomeric and aggregated tetrakis(p-sulfonatophenyl)porphyrin encapsulated
within an aluminosilicate mesostructure, specifically MCM-41, under different pH conditions. It was necessary
to stabilize the synthesized MCM-41 through use of a silylation reagent, (aminopropyl)triethoxysilane, which
cross-links oxygen on the surface (thus rigidifying the walls of the mesoporous material) and functionalizes
the interface for proper guest−host interaction. XRD, UV−vis absorption, and fluorescence measurements
are used as spectroscopic tools to characterize the various products.
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