コバルトフタロシアニン窒素同構体 (コバルト-テトラ-2, 3-ピリジノポルフィラジンおよびコバルト-テトラ-3, 4-ピリジノポルフィラジン) について : アザ化合物に関する研究 (第32報)

概要

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The Wylers method for the synthesis of copper phthalocyanine was applied to quinolinic acid and cinchomeronic acid with cobalt salt to prepare cobalt-tetra-2, 3- pyridinoporphyrazine and cobalt-tetra-3, 4-pyridinoporphyrazine. Their optical absorption spectra of visible light and infra red light were measured and their properties as organic pigments and vat dyes investigated. The cobalt-phthalocyanine-N-isologs showed no change in crystal form when treated with aromatic solvents.