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螺(口恶)嗪是一类重要的光致变色化合物,与研究最多的螺吡喃化合物相比,其主要优点是热稳定性高、抗疲劳性强。做为光致变色光存贮材料,它是一类值得重视的化合物,但关于此类化合物的研究却还很少。限制此类化合物在光致变色光存贮材料中应用的最大困难是它们的最大吸收(一般在650nm左右)与现有半导体激光器的光源波长(一般大于750nm)不相适应。
Spiroxazine is an important class of photochromic compounds. Compared with the most studied spiropyran compounds, its main advantages are high thermal stability and good fatigue resistance. As a photochromic optical storage material, it is a class of compounds worthy of attention, but few studies on such compounds. The biggest limitation that limits the use of such compounds in photochromic optical storage materials is that their maximum absorption (typically around 650 nm) is not compatible with the wavelength of the light sources of existing semiconductor lasers (typically greater than 750 nm).