Synthesis and characterization of conjugated azobenzene-perylene derivatives

ORGN 55

Wei Feng Sr., weifeng@tju.edu.cn, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China and Yiyu Feng, Department of Polymer Materials Science and Engineering, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
A new class of conjugated azobenzene-perylene derivatives of N-dodecane-N'-aminoazobenzene-3,4,9,10-perylene diimide (AAZO-PDI) and N,N'-bis (aminoazobenzene)-3,4,9,10-perylene dimides (AAZO-PDI-AAZO) was synthesized and FT-IR spectra suggested that azobenzene chromophore N-substituted to perylene successfully. Scanning Electron Microscopy (SEM) images displayed that the aggregation of AAZO-PDI formed the directional nanofibers of 150~200nm and AAZO-PDI-AAZO aggregated to many pieces of crystals with a certain thickness due to the g-g stacking interaction. Uv-vis absorption spectra showed that the interaction of two conjugated systems led to azobenzene chromophore blue-shifts by 18nm in AAZO-PDI and AAZO-PDI-AAZO and perylene chromophore red shifts by 5nm.
 

Materials, Devices, and Switches
8:00 AM-12:00 PM, Sunday, 10 September 2006 Moscone Center -- Room 132, Oral

Division of Organic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006