Enhanced Room-Temperature Phosphorescence of an Organic Ligand in 3D Hybrid Materials Assisted by Adjacent Halogen Atom.,Inorganic Chemistry

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Enhanced Room-Temperature Phosphorescence of an Organic Ligand in 3D Hybrid Materials Assisted by Adjacent Halogen Atom.
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.inorgchem.9b03088
Ying Mu ₁ , Jun-Qing Wang ₁ , Song-De Han ₁ , Jie Pan ₁ , Jin-Hua Li ₁ , Guo-Ming Wang ₁

Affiliation

Room-temperature phosphorescence (RTP) materials have potential applications in anticounterfeiting, biochemistry, and optical recording. It is significant to develop a novel approach to enriching RTP materials. Here two new hybrid RTP solids were obtained by the introduction of organic 1,3,5-tris(1-imidazolyl)benzene and halogen atoms to simultaneously coordinate with inorganic moieties. Single-crystal X-ray analysis reveals that Br atoms are oriented toward the adjacent organic molecules that can play an important heavy-atom effect (HAE). Notably, such a HAE realized by orienting the Br atom to the location immediately adjacent to the triplets produced can efficiently facilitate intersystem crossing and results in RTP with intensity similar to that of the fluorescence in steady-state photoluminescence.

中文翻译：

相邻卤素原子辅助的3D杂化材料中有机配体的增强的室温磷光。

室温磷光（RTP）材料在防伪，生物化学和光学记录中具有潜在的应用。开发一种丰富RTP材料的新颖方法具有重要意义。在这里，通过引入有机1,3,5-三（1-咪唑基）苯和卤素原子与无机部分同时配位，获得了两种新的杂化RTP固体。X射线单晶分析表明，Br原子朝向相邻的有机分子，这些分子可以发挥重要的重原子效应（HAE）。值得注意的是，通过将Br原子定向到紧邻所产生的三联体的位置而实现的这种HAE可以有效地促进系统间交叉，并导致RTP具有与稳态光致发光中的荧光强度相似的强度。

更新日期：2020-01-10

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