光致变色化合物螺萘并噁嗪的合成及光谱性能研究

合成了一种含萘并螺噁嗪的光致变色化合物N-乙基-3，3-二甲基-5-甲氧基螺吲哚啉-2，3’-3H]萘并2，1-b]1，4]噁嗪。通过^1H NMR，IR和元素分析表征了它的分子结构，利用紫外光谱和荧光光谱初步探索了目标产物的光致变色性能。吸收光谱结果表明，目标分子的氯仿溶液经紫外光照射后，其开环体在587nm处有较强的吸收而呈现蓝色，停止紫外光照射，溶液恢复为无色，显示了良好的光致变色性能；发光光谱结果显示，目标分子经紫外光激发后其开环体在435nm处有较强的蓝光发射。

Study on synthesis and spectrum properties of photochromic spironaphthoxazine

A compound, called as N-ethyl-3,3-dimethyl-5-methoxy -spiroindoline-2,3 ＇-3H]-naphtho 2,1-b] -1,4]oxazine, is synthesized which contains naphthalene ring. The chemical structure is characterized with ^1HNMR, IR and elementary analysis, and the photochromic properties are studied with UV and fluorescence spectrometers. The absorption spectrum experimental results indicated that the compound in trichloromethane solution has an intensive absorption at 587 nm and gave a blue color after UV radiation but back to the colorless when no radiation, which shows the good photochromic property. The fluorescence spectrum experimental results indicate that the compound display an intensive blue emission light at 435 nm.