Related Products of 16004-15-2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-(Bromomethyl)-4-iodobenzene, is researched, Molecular C7H6BrI, CAS is 16004-15-2, about Clustering-Triggered Ultralong Room-Temperature Phosphorescence of Organic Crystals through Halogen-Mediated Molecular Assembly. Author is Sun, Huili; Ding, Riqing; Lv, Shanling; Zhou, Shasha; Guo, Sidan; Qian, Zhaosheng; Feng, Hui.
To achieve efficient room-temperature phosphorescence of organic materials with ultralong lifetime, it is imperative to resolve the dilemma that the introduction of heavy atoms simultaneously improves emission efficiencies and shortens the emission lifetimes. Herein, we report a new mol. design approach for halogenated luminogens with a methylene bridge to avoid the lifetime shortening induced by heavy halogens and propose a general mol. engineering strategy to realize efficient and ultralong room-temperature phosphorescence via halogen-mediated mol. clustering. The halogenated N-benzylcarbazole derivatives show distinct photophys. behaviors depending on different phys. states, including single-mol. state and cluster state. Their crystals demonstrate the halogen-dependent emission duration of room-temperature phosphorescence upon excitation. Exptl. data and theor. anal. indicate that halogen-regulated mol. clustering in the crystal is responsible for the generation of efficient ultralong room-temperature phosphorescence, and halogen-dominated mol. engineering favors the promotion of the intersystem crossing process and the following triplet emissions.
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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics