The association particle system of CTMAB-[AuI 4] - exhibits violet-red color. It has a new absorption peak at 520 nm.

• 当十六烷基三甲基溴化铵(CTMAB)与 [AuI4]-共存时体系呈红紫色 ,在 5 2 0nm处产生一新的吸收峰。