Acta Phys. -Chim. Sin. ›› 1995, Vol. 11 ›› Issue (06): 572-575.doi: 10.3866/PKU.WHXB19950619

• Note • Previous Articles    

Study on the Multiplex Charge Transfer Complex of a Merocyanine Dye

Chang You-Ming,Deng Xiao-Dong,Li Chun-Qiu   

  1. Institute of Chemistry,Academia Sinica,Beijing 100080|Department of Chemistry,Yangzhou Teacher's Colledge,Yangzhou 225002
  • Received:1994-04-04 Revised:1994-09-29 Published:1995-06-15
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Abstract:

Iodine-doped (C22H16N2SO2) was prepared by doping the dye with iodine vapor. The following characteristics were obtained by structure analysis.
1. The doped iodine exists as I3-anion and I2.
2. Because the electron located on the sulphur atom was transferred to iodine, a charge transfer complx of (C22H16N2SO2I5) was formed.
3. The complex was proved to exist in a quasi-one dimension conductor state, forming two ordered molecular stacks.
4. From the volt-ampere curve with sandwich cell, the room temperature resistivity(ρ) and the exciting energe (△E) of the doped complex were shown to be 3.47×107Ω•cm-1 and 0.4eV respectively.
5.Its electrical behavior obeys the fomulaρ=ρoexp(△E/kt),showing the behavior of a typical semiconductor.

Key words: Iodine-doped, Multiplex charge transfer complex, Quasi-one dimension conductor