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合成了两种具有大π共轭性的二苯乙烯类衍生物 ,通过1 H NMR对它们进行了鉴定。单光子荧光光谱及双光子上转换荧光的测定发现它们存在一定的上转换荧光
Two stilbene derivatives with large π-conjugation were synthesized and identified by1H NMR. Single photon fluorescence spectroscopy and two-photon up-conversion fluorescence assay found that they have some upconversion fluorescence