Highly Twisted <i>N</i>,<i>N</i>-Dialkylamines as a Design Strategy to Tune Simple Aromatic Hydrocarbons as Steric Environment-Sensitive Fluorophores
作者:Shunsuke Sasaki、Satoshi Suzuki、W. M. C. Sameera、Kazunobu Igawa、Keiji Morokuma、Gen-ichi Konishi
DOI:10.1021/jacs.6b03749
日期:2016.7.6
intersection (MECI) between S1 and S0 states was found to have a Dewar-benzene like structure. Although this can be reached efficiently in liquid phase for fast internal conversion, a large amplitude motion is required to reach this MECI, which is prohibited in the solid state and caused efficient AIE. This strategy is used to find experimentally that naphthalene analogues are also efficient AIE luminogens
Synthesis and Structural Characterization of New Stiff Rod Oligomeric Domains by X-ray Crystallography and NMR
作者:Frederik C. Krebs、Mikkel Jørgensen
DOI:10.1021/jo025980f
日期:2002.10.1
4-diureidobenzenes ((Phe)K(3) and (Phe)K(9)) or 1,5-diureidonaphthalenes ((Nap)K(3) and (Nap)K(9)). A byproduct in the formation of (Phe)K(9) was a cyclic hexamer (Phe)K(6). NMR gave evidence of the structure in solution while X-ray crystallographic information was obtained for 5, 6, (Nap)K(3), and the cyclic (Phe)K(6).