- Process for preparing titanyl phthalocyanine
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A process for preparing titanyl phthalocyanines in one reaction reactor includes the reaction of titanium tetrachloride or titanium trichloride and o-phthalodinitrile in an organic solvent such as 1-chloronaphthalene in the presence of a molecular sieve as a promoter followed by hydrolysis resulting in titanyl phthalocyanines. The prepared titanyl phthalocyanines is usable as a high-quality charge generating material and can be used as a charge generating layer in an organic photoconductor drum.
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Page/Page column 3-5
(2008/06/13)
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- m-OXO CROSSLINKED DISSIMILAR METAL PHTHALOCYANINE COMPOUND AND PROCESS FOR SELECTIVELY PRODUCING THE SAME
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An object of the present invention is to provide a novel μ-oxo bridged heterometal phthalocyanine compound, and a production method such that the μ-oxo bridged heterometal phthalocyanine compound is obtained simply, selectively and with high yield. The μ-oxo bridged heterometal phthalocyanine compound has a structure in which the central metal atom (M1) in a metal phthalocyanine including M1 as central metal thereof is oxo-bridged with the central metal M2 in a metal phthalocyanine including M2 as central metal thereof.
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Page/Page column 6
(2008/06/13)
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- Mu-oxo bridged heterometal compound and selective production method thereof
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An object of the present invention is to provide a new μ-oxo bridged heterometal compound, which can make the photo-functional materials to have diversified properties, and a production method such that the μ-oxo bridged heterometal compound is obtained simply, selectively and with high yield. The present invention provides μ-oxo bridged heterometal compounds, NcM1-O-M2Nc, PcM1-O-M2Nc and NcM1-O-M2Pc wherein Nc represents naphthalocyanine, Pc represents phthalocyanine, M1 represents a metal atom which is able to have a valence of up to three, and M2 represents a metal atom which is able to have a valence of four or five.
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- Synthesis of dichloro phthalocyaninato complexes of titanium, zirconium, and hafnium
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A new approach to the synthesis of dichloro phthalocyaninato complexes of titanium, zirconium, and hafnium was developed. The hydrolytic stability of the compounds synthesized was studied. All complexes were characterized by elemental analyses and IR and electronic absorption spectra.
- Tomachynski,Chernii,Volkov
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p. 208 - 211
(2008/10/08)
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- Solvent Effects on Electronic States of Phthalocyanines
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The absorption spectra of a ?-?* transition (the Q band) of titanium(IV) oxide phthalocyaninate (TiOpc) and phthalocyanine (H2pc) were measured in various organic solvents.It has been shown that the wavelength of the ?-?* transition is dependent on 1) the permanent dipole moment of the solvent, 2) the coordination of the solvent, and 3) the dispersion force and induced dipole moment of the solvent.A single ?-?* peak and its significant red-shift in the absorption spectrum of H2pc in trifluoroacetic acid (TFA) suggested a protonation of the inner nitrogen atoms, leading to H4pc2+.TiOpc in TFA was cleaved, followed by the release of H2pc.The overall reaction was proposed to be as follows; TiOpc + 4CF3COOH Ti(CF3COO)4 + H2O + H2pc.
- Harazono, Toshie,Takagishi, Iwao
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p. 1016 - 1023
(2007/10/02)
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- Synthesis, reactivity, and X-ray crystal structure of dichloro(phthalocyaninato)titanium(IV)
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A new synthesis of dichloro(phthalocyaninato)titanium(IV), [C32H16N8Cl2Ti] (PcTiCl2), has been performed from phthalodinitrile and titanium tetrachloride in α-chloronaphthalene. Substitution reactions of the chloride ions in PcTiCl2 lead to the formation of complexes of formula PcTiX, where X = catecholate (C6H4O22-), oxalate (C2O42-), and peroxide (O22-) groups. These compounds have also been obtained by using PcTiO as starting material. Interconversion of all these species has been examined and their structure discussed on the basis of their chemical and physical behavior. Single crystals of the title compound were obtained under controlled conditions, and its X-ray crystal structure has been solved. Crystals of PcTiCl2 are triclinic (P1) with a = 8.744 (9) A?, b = 12.244 (4) A?, c = 12.835 (4) A?, α = 79.73 (3)°, β = 95.32 (6)°, γ = 103.27 (6)°, and Z = 2. The two chlorine atoms are bound to the titanium atom in a cis position (Cl-Ti-Cl angle 82.4°) with respect to the plane of the phthalocyanine molecule, with the metal considerably displaced out of the plane of the N4 chromophore (CtN4-Ti distance 0.84 A?) toward the two chlorine atoms (average Ti-Cl and Ti-N bond distances 2.087 and 2.317 A?, respectively). The Cl-Ti-Cl moiety appears to choose an intermediate position between the eclipsed and the staggered conformation relative to the Ti-N4 bond system. The structural conformation of PcTiCl2 is discussed in relation to the structure of similar species already known from the literature.
- Goedken,Dessy,Ercolani,Fares,Gastaldi
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p. 991 - 995
(2008/10/08)
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