Synthesis and Purification of Sexiphenyl for Scintillator

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概要

• 論文の詳細を見る

• 1) Mononitration of <I>p</I>-terphenyl is satisfactorily effected at 100 to 110°C in glacial acetic acid containing about 10% acetic anhydride and a trace of sulfuric acid, and 4-nitro- (ca. 60%), 2′-nitro- (20 to 25%) and 2-nitroterphenyl (15 to 20%) are obtained.<BR>2) Sexiphenyl is formed in a fairly good yield (more than 40%) by the Ullmann condensation of 4-iodoterphenyl and copper.<BR>3) Sexiphenyl is satisfactorily purified by repeated zone refining and vacuum sublimation. The final product melts at 428∼429°C to form an apparent liquid crystalline state and becomes tranparent at 543°C (475°C in literature). It contains an appreciable amount of neither iodine nor copper and can be converted into a fairly large single crystal to be used as scintillator.

• 社団法人 日本化学会の論文

著者

• Harada Yuhei

  Institute for Nuclear Study The University of Tokyo

• Tamura Michiko

  Institute for Nuclear Study The University of Tokyo

• Nozaki T.

  The Electrical Communication Laboratory

• Saito Kazuo

  Institute for Nuclear Study The University of Tokyo

関連論文

• Synthesis and Purification of Sexiphenyl for Scintillator

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