So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Oezcan, Emrah; Dedeoglu, Burcu; Chumakov, Yuri; Guerek, Ayse Guel; Zorlu, Yunus; Cosut, Buenyemin; Menaf Ayhan, Mehmet researched the compound: 2,4-Dimethyl-1H-pyrrole( cas:625-82-1 ).COA of Formula: C6H9N.They published the article 《Halogen-Bonded BODIPY Frameworks with Tunable Optical Features**》 about this compound( cas:625-82-1 ) in Chemistry – A European Journal. Keywords: halogen bonded BODIPY preparation crystal structure fluorescence; optical band gap DFT halogen bonded BODIPY; BODIPY; fluorescence enhancement; halogen bonding; solid-state assemblies; tunable optical features. We’ll tell you more about this compound (cas:625-82-1).
The ability to tune the optical features of BODIPY materials in the solid state is essential for their photorelated application and requires efficient control of the crystal packing. Such control of BODIPY supramol. assemblies was achieved by deliberate design and synthesis of a BODIPY containing a strong halogen-bond (XB) acceptor (-NO2) and donor (I, Br) to mediate XB interactions. The di-halogenated structures formed isostructural monocoordinate motif B3, B4 (1D tubular structure) and sym. bifurcated motif B4-II (1D zigzag chains structure) through N-O···I, Br XB interactions. These XB interactions promote singlet-to-triplet intersystem crossing and triplet-to-singlet reverse intersystem crossing due to partial delocalization of oxygen electrons onto Br and I, which leads to unexpected fluorescence enhancement of B4-II. Finally, the indirect optical band gaps of B3, B4 and B4-II were amenable to tuning at 1.85-2.50 eV by XB-driven crystal packings.
《Halogen-Bonded BODIPY Frameworks with Tunable Optical Features**》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2,4-Dimethyl-1H-pyrrole)COA of Formula: C6H9N.