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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A 'flexible' carborane-cored luminogen: variable emission behaviours in aggregates
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A 'flexible' carborane-cored luminogen: variable emission behaviours in aggregates

机译:“柔性”碳碳粘附的光荧光剂:聚集体中可变排放行为

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摘要

The performance of tunable emissions in aggregates is highly desirable but challenging owing to the restricted molecular conformations of luminogens. Herein, we designed and synthesized a new "flexible" luminogen, a carborane-cored compound NAPH, which exhibits variable photophysical behaviours in aggregates, such as aggregation-induced emission, crystallization-induced emission, polymorph-dependent emission, and mechanochromic luminescence. Moreover, the two polymorphs with different emission colors show opposite mechano-responsive luminescence, which is rarely observed for single-component luminescent materials. Both theoretical calculations and photophysical experiments reveal that the carborane-cored luminogen could afford variable conformations. This endows the whole molecule with multiple conformations in aggregates, thus leading to variable emission behaviours. Therefore, the present work provides new access to the construction of multifunctional single-component solid-state luminescent materials.
机译:聚集体中可调谐发射的性能非常理想,但由于发光体的分子构象受到限制,因此具有挑战性。在此,我们设计并合成了一种新的“柔性”发光剂,一种碳硼烷核化合物NAPH,它在聚集体中表现出不同的光物理行为,如聚集诱导发射、结晶诱导发射、多晶型依赖发射和机械致变色发光。此外,两种发射颜色不同的多晶型显示出相反的机械响应发光,这在单组分发光材料中很少观察到。理论计算和光物理实验均表明,碳硼烷为芯的发光剂具有可变构象。这使得整个分子在聚集体中具有多种构象,从而导致可变的发射行为。因此,本研究为多功能单组分固态发光材料的构建提供了新的途径。

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    Nanjing Univ Sch Chem &

    Chem Engn Jiangsu Key Lab Adv Organ Mat State Key Lab Coordinat Chem Nanjing 210023 Peoples R China;

    Nanjing Univ Sch Chem &

    Chem Engn Jiangsu Key Lab Adv Organ Mat State Key Lab Coordinat Chem Nanjing 210023 Peoples R China;

    Guangxi Normal Univ Coll Phys Educ &

    Hlth Sports Biochem Lab Guilin 541006 Peoples R China;

    Nanjing Univ Sch Chem &

    Chem Engn Jiangsu Key Lab Adv Organ Mat State Key Lab Coordinat Chem Nanjing 210023 Peoples R China;

    Nanjing Univ Sch Chem &

    Chem Engn Jiangsu Key Lab Adv Organ Mat State Key Lab Coordinat Chem Nanjing 210023 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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