Inclusion Crystal Growth and Optical Properties of Organic Charge-transfer Complexes Built from Small Aromatic Guest Molecules and Naphthalenediimide Derivatives
simple naphthalenediimide derivative with toluene, 4-fluorotoluene, and p-xylene by the aid of cooperative intermolecular interactions, such as charge-transfer interactions and inclusion phenomena. The crystals showed intense guest-dependent solid-state emission based on ground state CT complexes between naphthalenediimide and small aromatic guests.
Inclusion crystals as vapochromic chemosensors: fabrication of a mini-sensor array for discrimination of small aromatic molecules based on side-chain engineering of naphthalenediimide derivatives
fluorogenic detection of small aromaticmolecules in the vapor phase. Among the studied compounds, NDI with a 2-benzophenone unit in its structure exhibited a unique vapochromic/vapoluminescent behavior toward toluene, p-xylene, 4-fluorotoluene, and anisole. Detection limits in the parts-per-million (ppm) range are accomplished with some compounds. Optical measurements and X-ray crystal structure analyses clearly