Photochemical and photophysical properties of photochromic osmium terpyridine-dimethyldihydropyrene complexes
作者:Hiroya Sakurai、Margot Jacquet、Frédéric Lafolet、Frédérique Loiseau、Eric Saint-Aman、Guy Royal、Saioa Cobo
DOI:10.1016/j.dyepig.2018.07.047
日期:2019.1
A series of terpyridine osmium complexes linked to the dimethyldihydropyrene (DHP) photochromic unit have been synthetized and fully characterized by cyclic voltammetry, absorption, emission and transient spectroscopies. The complexation of the photochromic molecule by an osmium metal ion highly affects the emission properties of the molecules; i.e these compounds, in the closed-ring form, show unusually
与二甲基二氢py(DHP)光致变色单元连接的一系列三联吡啶配合物已被合成,并通过循环伏安法,吸收,发射和瞬态光谱学进行了全面表征。chrom金属离子对光致变色分子的络合作用极大地影响了分子的发射性能。也就是说,与ter联吡啶配合物相比,这些化合物为闭环形式,显示出异常低的发射量子产率。这些发射特性可以通过DHP核的光异构化状态进行控制。