《Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling》 was written by Wang, Tao; Hu, Zhubin; Nie, Xiancheng; Huang, Linkun; Hui, Miao; Sun, Xiang; Zhang, Guoqing. Application In Synthesis of 4-Cyanobenzyl bromideThis research focused ontriphenylamine phosphorescence aggregation induced emission. The article conveys some information:
Aggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting mol. motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theor. investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global min. from the lowest triplet excited state (T1). The reported mol. construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom mol. systems with complex excited-state dynamics. In the experimental materials used by the author, we found 4-Cyanobenzyl bromide(cas: 17201-43-3Application In Synthesis of 4-Cyanobenzyl bromide)
4-Cyanobenzyl bromide(cas: 17201-43-3) can reacts with 2H-tetrazole in the presence of KOH to yield 4-[(2H-tetra-zol-2-yl)methyl]benzonitrile. And it may be used in the synthesis of ligands containing a chelating pyrazolyl-pyridine group with a pendant aromatic nitrile.Application In Synthesis of 4-Cyanobenzyl bromide
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts