Journal of The Society of Photographic Science and Technology of Japan
Online ISSN : 1884-5932
Print ISSN : 0369-5662
ISSN-L : 0369-5662
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Volume 57, Issue 3
Displaying 1-4 of 4 articles from this issue
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  • The Study on Photolysis of Benzyl Compounds
    Photolysis of Phenylacetonitrile
    Kazuo OTA, Teiji HABU
    1994 Volume 57 Issue 3 Pages 139-145
    Published: June 25, 1994
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.57.139
    JOURNAL FREE ACCESS
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    Photolysis of phenylacetonitrile (PAN) dissolved in cyclohexane was studied in oxygen or in nitrogen atmosphere. The mixtures of photochemical products were separated by TLC. From the products in oxygen atmosphere, cyclohexylphenylketone and o-tolunitrile were found. From the products in nitrogen atmosphere, only o-tolunitrile was found.
    Gas liquid chromatography (GLC) analysis was carried out to study the formation mechanism of cyclohexylphenylketone (addition product of solvent). In GLC analysis, other three cyclohexyl compounds, such as bicyclohexyl, cyclohexanol and cyclohexanone were found. From the result, we proposed that those products were formed via cyclohexylperoxy radical.
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  • Study on new cyan dye forming compounds
    Pyrazoloimidazopyridine derivatives
    Yutaka KANEKO, Satoru IKESU, Keiko YAMADA
    1994 Volume 57 Issue 3 Pages 146-151
    Published: June 25, 1994
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.57.146
    JOURNAL FREE ACCESS
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    Two kinds of 1 H-pyrazoloimidazopyridine (PIP) derivatives consisting of 5-5-6 ring condensed heteroaromatic systems, that is, 1 H-pyrazolo [5', 1': 2, 3] imidazo [4, 5-b] pyridine (PIP-A) and 1 Hpyrazolo [1', 5': 1, 2] imidazo [4, 5-c] pyridine (PIP-B), are very interesting skeletons from theviewpoint of dye formation, because they possess an active methylene at 3-position in their ring systems. These two PIP derivatives were synthesized and their coupling reactivity with quinonediimine (QDI) was investigated. It was revealed that they were able to couple with QDI to form azomethine cyan dyes (PIP-A-Dye and PIP-B-Dye respectively).
    We measured absorption spectra and reduction potentials of these dyes and it was found that, (i) the spectral absorption characteristics and the reduction potential of PIP-A-Dye were very similar to those of PIP-B-Dye, (ii) both these dyes were hypsochromically shifted in hue, compared with the dye of conventional phenolic cyan coupler (PHE-Dye), (iii) both these dyes had more desirable spectral absorption characteristics than PHE-Dye, (iv) both these dyes had more negative reduction potentials than PHEDye, which would be favorable for prevention of heat-induced cyandye fading.
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  • Cyanine Dye and its related to Japanise Photographic Industries
    Seiichi OOBA
    1994 Volume 57 Issue 3 Pages 152-160
    Published: June 25, 1994
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.57.152
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1994 Volume 57 Issue 3 Pages 161-194
    Published: June 25, 1994
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.57.161
    JOURNAL FREE ACCESS
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