New Near Infrared Absorbing Metal Complex Dyes: Synthesis and Metallochromic Properties of Two Isomeric Ligands, 2-(Dimethylamino)naphtho {[1,2-g] and [2, 1-g]} quinoline-7,12-diones
作者： Katsuhira Yoshida , Tetsunao Koujiri , Eriko Sakamoto , Yuji Kubo
DOI: 10.1246/BCSJ.63.1748
关键词:
摘要: The Diels–Alder reaction of 5,8-quinolinedione with p-(dimethylamino)styrenes gave new two kinds isomeric dyes, 2-(dimethylamino)naphtho[1,2-g]quinoline-7,12-diones and 2-(dimethylamino)naphtho[2,1-g]quinoline-7,12-diones, which showed quite different metallochromic behaviors. Upon addition metal salts, one the isomers drastic spectral changes to have an intense absorption band in near infrared region. color–structure relations were investigated.
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