CRCU

Chemical Research in Chinese Universities ›› 1995, Vol. 11 ›› Issue (3): 195-201.

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ESR Studies on N-Alkylphenothiazine Radical Cation Salts

GUO Qing-xiang1,2, LIU Bo1, LIU You-cheng1,2   

  1. 1. Natioiial Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000;
    2. Dept. of Modern Chem. , University of Science and Technology of China, Hefei, 230006
  • Received:1994-12-14 Online:1995-08-24 Published:2011-08-17
  • Supported by:

    Supported by the National Natural Science Foundation and the State Education Commission of China.

PDF (PC)

Abstract: The stable radical cation salts of phenothiazine and N-alkyl-phenothiazine(alkyl =methyl, ethyl, isohutyl, isopentyl and benzyl) hexachloroantimonate,per-chlorate, and iodide were prepared by means of one-electron oxidation with 2,2, 6,6-tetramethyl- 4-acetoxypiperidine oxoammonium hexachloroantimonate, perchloricacid, hydrogen peroxide, and molecular iodine, respectively.The radical cationswere characterized using ESRspectroscopy.Conformational analysis based on theESRparameters suggests that the radical cations adopt a planar configuration withthe nitrogen radical as the center.

Key words: Phenothiazine, Radical cation salts.ESR spectra