Water Solubilization and Guest Molecule‐Induced Fluorescence Changes of Porous Host Molecules via Complexing with Polysaccharide or Polypeptide

Abstract

To detect small aromatic molecules in water, we prepared functional host molecules based on water‐soluble N,N’‐bis(2‐aminobenzophenone)‐1,4,5,8‐naphthalenetetracarboxylic diimide (1) and a solubilizing agent using a high‐speed vibration milling apparatus. The fluorescence response of host 1‐solubilizing agent complexes before and after extraction of small aromatic guest molecules was large and the fluorescence maxima were dependent on the small aromatic guest molecules.

Role of Halobenzene Guest Molecules in Modulating Room Temperature Phosphorescence of Benzophenone–Naphthalene Diimide Inclusion Crystals

“…Our group has previously demonstrated the versatility of compound 1 in forming inclusion crystals with various aromatic compounds, leading to applications in multi- colored fluorescence, vapochromic, and piezochromic materials. [33][34][35][36][37] The exceptional guest inclusion ability of 1 is attributed to BP acting as a bulky substituent, providing nanospaces near NDI and thus facilitating the encapsulate ion of aromatic guest molecules. Herein, we focused on creating inclusion crystals using compound 1 and halobenzenes such as chlorobenzene, bromobenzene, and iodobenzene.…”