A spirobenzothiapyran derivative bearing a monoaza-12-crown-4 moiety affords significant thermal stability enhancement in the UV light induced colored merocyanine form of its photochromic moiety by metal-ion complexation of its crown ether moiety, although the complexation hardly induces the isomerization without photoirradiation.
通过
冠醚分子的
金属离子络合,一种具有单aza-
12-冠-4分子的螺苯并
噻喃衍
生物在紫外光诱导下的光致变色美拉德菁形式的热稳定性显著增强,尽管这种络合在没有光辐射的情况下很难诱导异构化。