| 摘要 |
Metal-containing or metalfree, monosubstituted or disubstituted phthalocyanines I which have one or two of the following radicals R as substituents on their benzene rings: R=bromine, cyano, C1-C3-alkyl, n-butyl, i-butyl, C5-C20-alkyl, C5-C10-cycloalkyl, fluorinated C1-C6-alkyl, C6-C20-aryl, XR1, where X is oxygen, sulfur, selenium, tellurium or imino (NH) and R1 is C1-C6-alkyl, fluorinated C1-C6-alkyl or C6-C20-aryl, or Si(R2)3, where R2 is C1-C6-alkyl, each and every substituted benzene ring being substituted by only one R radical, are useful in Laser-optical recording materials.
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