中文Mechanism of photochromism
It was mentioned earlier that there are two independent chromophores in fulgide molecules. Kurita et al. studied the excited state characteristics of phenyl-substituted fulgide, and found that when fulgide molecules were excited by ultraviolet light, only excited singlets were generated, and some fluorescence of fulgide could be observed at low temperature. The existence of (n, r ") excited singlet was further confirmed in nanosecond laser flash photolysis experiment, and no evidence of excited triplet was observed, and oxygen had...
