| 摘要 |
PROBLEM TO BE SOLVED: To provide a near-infrared absorbing triarylamine derivative having excellent light resistance, moisture/heat resistance and solubility. SOLUTION: The triarylamine derivative (a diimmonium compound) is prepared by reacting, for example, a bis(4-di(n-butyl)aminophenyl)-4-diethylaminophenylamine with a silver hexafluoroantimonate. COPYRIGHT: (C)2009,JPO&INPIT
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