Borylated Arylamine-Benzothiadiazole Donor-Acceptor Materials as Low-LUMO, Low-Band-Gap Chromophores
Borylated Arylamine-Benzothiadiazole Donor-Acceptor Materials as Low-LUMO, Low-Band-Gap Chromophores
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DOI：
10.1021/acs.organomet.7b00188
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发表时间：
2017-07-24
期刊：
影响因子：
2.8
通讯作者：
Ingleson, Michael J.
中科院分区：
文献类型：
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作者：
Crossley, Daniel L.;Goh, Rosanne;Ingleson, Michael J.
通过直接亲电的C- h硼化反应合成了熔融和阶梯型苯并噻二唑-芳胺供体-受体C， n螯合硼配合物。硼化材料的前沿分子轨道能级可以通过与不同的二芳基锌试剂发生金属转化改变外环硼取代基来调节。硼化材料具有较低的带隙和较低的LUMO能级，许多例子在> 700nm处也显示出显著的吸光度；然而，所有这些硼化化合物的光致发光量子产率都很低。
Fused and ladder-type benzothiadiazole-arylamine donor-acceptor C,N-chelated boron complexes were synthesized through direct electrophilic C-H borylation. The frontier molecular orbital energy levels of the borylated materials then could be modulated through variation of the exocyclic boron substituents by transmetalation with different diarylzinc reagents. The borylated materials possessed low band gaps and low LUMO energy levels with a number of examples also showing significant absorbance at > 700 nm; however, low photoluminescence quantum yields were found for all these borylated compounds.