Modification of magnesium silicate with 15(2)-methyl ester of 13(1),17(3)-diamino-N,N′-bis(2-hydroxyethyl)-13(1),17(3)-dioxochlorin e6

Abstract

Magnesium silicates modified with 15(2)-methyl ester of 13(1),17(3)-diamino-N,N′-bis(2-hydroxyethyl)-13(1),17(3)-dioxochlorin e₆ have been synthesized by heat treatment in water containing small fraction of ethanol. X-ray phase analysis, differential scanning calorimetry, thermogravimetry, and UV-Vis spectroscopy studies have shown that the synthesized samples contain individual molecules of 15(2)-methyl ester of 13(1),17(3)-diamino-N,N′-bis(2-hydroxyethyl)-13(1),17(3)-dioxochlorin e₆ held on the inorganic substrate surface by electrostatic interaction and hydrogen bonding.