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研究了逆向光致变色化合物1＇-十八烷基－3＇；3＇-二甲基-6，8二硝基螺［2H－1－苯并吡喃-2，2＇-吲哚啉］的可见光消色机理．通过吸收光谱测定其在不同溶剂及含不同添加剂时，可见光照射后有色体［MC］关环的光量子产率·结果表明O2、三苯基胺等三线态猝灭剂对关环反应光量子产率几乎没有影响．据此提出关环反应主要是通过单线态的途径进行的结论．
The reversible photochromic compound 1’-octadecyl-3 ’; 3’-dimethyl-6,8 dinitrospiro [2H-1-benzopyran-2,2’-indoline ] Visible light achromatic mechanism. The photoluminescent yield of the ring-closure photochromic [MC] was measured by absorption spectroscopy in different solvents and with different additives. The results showed that the quantum yield of ring-closing reaction photoluminescence Almost no effect. It is concluded that the ring closure reaction is mainly through the singlet state.