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应用光致变色有机化合物作为光信息贮存的材料,虽经国际上的深入研究,但至今仍难满意地实现愿望。这主要由于已知的光致变色有机物对热不稳定以及存在着不可逆的副反应,从而影响其使用性能。如果光致变色作用与分子中键的均裂或异裂所产生的淤离基,离子或偶极中间体有关,则很难使有色体保持热稳定性或避免不可逆副反应。近年来H.G.海勒等在俘精酸酐类光致变色化合物的研究中有了新的进展。他们证明了这个体系的有色体1,8a-二氢萘衍生物是由相应的俘精酸酐按伍
The use of photochromic organic compounds as optical information storage materials, although studied in depth in the world, is still difficult to satisfy the desire. This is mainly due to the known photochromic organic matter is unstable to heat and irreversible side reactions, which affect its performance. If photochromism is caused by silt, ionic or dipolar intermediates generated by the cleavage or cleavage of the bonds in the molecule, it is difficult to maintain the color body thermostable or to avoid irreversible side reactions. In recent years H.G. Heller et al. Have made new progress in the study of fulgide photochromic compounds. They demonstrate that the chromogenic 1,8a-dihydronaphthalene derivatives of this system are made up of the corresponding fulgides