Novel photochromic compounds, indolinospirobenzothiopyrans, were prepared and their properties in polymer films were examined. The absorption bands of the colored form lie around 100 nm deeper in the long-wave region of the spectrum than are the case with the common spiropyrans.
新型光变色化合物,
吲哚氮杂双噁烯,已制备并对其在聚合物薄膜中的性质进行了研究。其着色形式的吸收带在光谱的长波区域比常见的螺
吡喃低约100纳米。