In this work, a new pyrene derivative pyrenyl chalaone (PD) has been synthesized and its steady-state photophysical properties in solution and micell systems have been studied. Results indicated that the intermolecular charge transfer complexes (Inter-CT) between PD molecules are very easy to form even if the concentration is very low. The fluorescence emission of PD comprises the fluorescences from pyrenyl monomer, intramolecular charge transfer state (Intra-CT) and intermolecular charge transfer state complex. The compound PD has good solvatochromism effect, concentration effect and temperature effect, and is a better probe molecule for microenvironment.

Key words: MICELLE, INFRARED SPECTROPHOTOMETRY, MASS SPECTROGRAPHY, SOLUTION, PROTON MAGNETIC RESONANCE SPECTROMETRY, CHALCONE, CHARGE TRANSFER, PYRENE P