6-氯-8-溴螺(吲哚啉-2,2′[2H]苯并[b]吡喃)的合成及光致变色性能研究  

Synthesis and Properties of Photochromic 6-Chloro-8-bromo-spiro (indoline-2,2′[2H]benzopyran) Compounds

作　　者：谈廷风[1] 韩杰[1] 庞美丽[1] 高用彬[1] 孟继本[1] 

机构地区：[1]南开大学化学系

出　　处：《高等学校化学学报》2007年第3期472-475,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20372039;20490210)资助

摘　　要：合成了一系列新型的6-氯-8-溴-螺吡喃光致变色化合物,并用核磁共振氢谱、红外光谱、质谱和元素分析对目标化合物进行了表征,利用X射线单晶衍射仪测定了1′,5′-甲基取代化合物的晶体结构.通过UV-Vis光谱对化合物在不同溶剂中的光致变色性能进行了研究,讨论了溶剂和结构对光致变色性能的影响.在极性较大的溶剂中,光致变色现象明显;给电子能力较强的基团和强极性溶剂使最大吸收波长蓝移.A series of novel 6-chloro-8-bromo-spiropyrans were designed and synthesized. The structures of all the compounds were characterized by ^1H NMR, IR, MS, and elemental analysis. Single crystals of 1′,3′, 3′, 5′-tetramethyl 6-Cl-8-Br-spiro （ indoline-2,2′- [ 2H] -benzopyran） were determined by X-ray single diffraction. Combined with UV-Vis tion spectra, the photochromic properties of these compounds were studied intensively in different solvents. Moreover, the relationship between the structure, solvent polarity and photochromism were analyzed. The results show that and the compound takes on excellent photochromism in the strong polarity solvents, electron-donor groups in indoline moiety and solvents with a strong polarity made the maximum absorption wavelength to hypochromic shift.

关 键 词：螺吡喃 光致变色 紫外吸收光谱 合成 

分 类 号：O626[理学—有机化学]