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Chemical Research in Chinese Universities ›› 2001, Vol. 17 ›› Issue (3): 276-280.

• Articles • Previous Articles     Next Articles

Langmuir-Blodgett Films from Schiff Base Aluminium (Ⅲ) Complex

LIAN Wei1, CAO Wei2, WANG Gang2, WEI Li2, HONG Xia2, SHEN Dong-fang2, LIU Chun-yan1, SHAO Hui-bo3, BAI Yu-bai2   

  1. 1. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China;
    2. Center for Intelligent Materials United Research(CIMUR), Department of Chemistry, Jilin University, Changchun 130023, P. R. China;
    3. Department of Chemistry, Capital Normal University, Beijing 100037, P. R. China
  • Received:2000-07-31 Online:2001-08-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.29973026, 20073016).

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Abstract: The characteristics of the LB films of Schiff base aluminium(Ⅲ), tris(2-hydroxy-5-nitro N-dodecyl-benzylideneaminato) aluminium (Ⅲ) [Al (TA 12)3], were studied.The surface pres sure-area(r-A) isotherm of Al(TA12)3 in the pure water subphase was investigated.The molec ular area, 0.48 nm2, is one-third of the expected value that indicates the formation of an aggre gate.The Langmuir-Blodgett (LB) films of Al(TA12)3 were transferred and characterized.The UV-Vis spectra and the AFM image both confirmed that the J-aggregates formed.The polarized UV-Vis spectra indicated that the complex plane had to be oriented with an angle of about 30° to the substrate surface.The IR spectra suggested that the complexation took place between aluminium ions and the oxygen atoms of the ligand rather than the nitrogen atom.

Key words: Aluminium-Schiff base complex, LB film, J-aggregate