[Study on the spectral properties of gallium-phthalocyanine-chloride doped composite gel glass].

One of the focal topics in the field of phthalocyanine research is its materialization for practical use. The present paper reports the encapsulation of gallium phthalocyanine chloride (GaPcCl) into silica gel glass to make homogeneously doped composite by sol-gel technique. The spectral properties of the composite gel glass were carried out by IR, UV-Vis and fluorescence measurements. The results show that the introduction of GaPcCl doesn't make noteworthy changes in the IR spectra of silica gel glass matrix. The absorption of GaPcCl dimers increases compared with DMF solution. The fluorescence intensity of GaPcCl is greatly enhanced in the composite gel glass.

[Influence of tetrasulfo-substituents on the UV/Vis absorption spectra of phthalocyanine doped sol-gel hybrid].

Nickle phthalocyanine(NiPc) and Nickle tetrasulfo-phthalocyanine (NiTSPc) were introduced respectively into silica gel matrix by sol-gel technique. Composites were produced and their UV/Vis spectra were measured. The results show that the introduction of soluble tetrasulfo-substituents can greatly increase the solubility of phthalocyanine molecule, which is helpful for the steady co-existence of phthalocyanine in sol-gel hybrid and therefore beneficial to the production of homogeneous composite.