Method for preparing hydroxygallium phthalocyanine crystals and

Details Method for preparing hydroxygallium phthalocyanine crystals and Method for preparing hydroxygallium phthalocyanine crystals and

1994-08-10

1996-08-13

Shah, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540140, 540141, C09B 4704

Patent

active

055457339

ABSTRACT:
A method for preparing hydroxygallium phthalocyanine crystals wherein hydroxygallium phthalocyanine crystals having distinct diffraction peaks at 7.0.degree., 13.4.degree., 16.6.degree., 26.0.degree. and 26.7.degree. of the Bragg angle (2.theta..+-.0.2.degree.) with respect to CuK.alpha. characteristics X-ray in the X-ray diffraction spectrum are crystal-transferred by solvent treatment. The crystals after crystal-transfer have distinct diffraction peaks at (i) 7.7.degree., 16.5.degree., 25.1.degree. and 26.6.degree., (ii) 7.9.degree., 16.5.degree., 24.4.degree. and 27.6.degree., (iii) 7.0.degree., 7.5.degree., 10.5.degree., 11.7.degree., 12.7.degree., 17.3.degree., 18.1.degree., 24.5.degree., 26.2.degree. and 27.1, (iv) 7.5.degree., 9.9.degree., 12.5.degree., 16.3.degree., 18.6.degree., 25.1.degree. and 28.8.degree. or (v) 6.8.degree., 12.8.degree., 15.8.degree. and 26.0.degree. of the Bragg angle (2.theta..+-.0.2.degree. C.) with respect to CuK.alpha. characteristics X-ray in the X-ray diffraction spectrum. An electrophotographic photoreceptor having a light-sensitive layer on a electroconductive substrate wherein the light-sensitive layer contains at least one of the hydroxygallium phthalocyanine crystals.

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"CHIMIE DES COMPLEXES--Sur quelques d eriv es de la phtalocyanine" (COLA ITIS), Acad emie de Sciences (1956), p. 1026.
"Studies of a series of Haloaluminum, -gallium, and -indium Phthalocyanines.sup.1 " John P. Linsky et al., Inorg.Chem. 1980, 19, pp. 3131-3135.
"No. 2-Etude de quelques derives de la phtalocyanine discussion des divers modes d'obtention, I.--Phtalocyanines de'elements de valence superieure a deux." Mme. D. Colaitis, Bull. Soc. Chim. France (1962) pp. 23-26.

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