Water → HCID 136365464, compound

Participants

Reaction Steps

10 g of dimethoxysilicon phthalocyanine synthesized in Synthesis Example 2 was added to 5 g of water and 95 g of N-methylpyrrolidone (95% NMP aqueous solution) and reacted at 148° C. for 3 hours. The reaction product was thermally filtrated and washed with NMP and acetone in the order named. After the product was stirred in 100 ml of acetone at room temperature, crystals were separated by filtration and dried to obtain 8.0 g of dihydroxysilicon phthalocyanine. When structural analysis was carried out by mass spectral (negative measurement) and IR (KBr method) methods, the same spectrum as that of Example 1 was obtained. Therefore, it was confirmed that the product was dihydroxysilicon phthalocyanine. When the structural analysis of the obtained dihydroxysilicon phthalocyanine was carried out in accordance with the method of Itoh, it was found to be monoclinic and have lattice constants a=12.79Å, b=14.61Å, c=6.79Å and β=94.4°. According to the X-ray spectrum (FIG. 10), it is a dihydroxysilicon phthalocyanine having the crystal form of the present invention and a main peak at a 2 θ of 9.2° and other peaks at 12.2, 14.0, 15.3, 19.7, 23.4 and 27.1°, respectively.

Provenance & Evidence