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Journal of Materials Science

, Volume 26, Issue 6, pp 1683–1690 | Cite as

Structural determination of a semiconductive tetramer of aniline by IR, UV-visible, ESR, XPS and mass spectroscopy techniques

  • Hari Singh Nalwa
Papers

Abstract

A tetramer of aniline was obtained by the chemical oxidation of aniline in sulphanilic acid. The analytical techniques of infrared, UV-visible and mass spectroscopy show formation of a relatively short conjugation length oligomer (tetraaniline). The electronic structure elucidated by X-ray photoelectron spectroscopy reveals that the tetraaniline skeleton contains both benzenoid, [-NH-C6H4-NH-], and quinoid, [-N=C6H4=N-], phenyl rings. In the oxidized state, the tetraaniline backbone containing alternate benzenoid and quinoid phenyl units structurally similar to emeraldine was not evident. Electron spin resonance and electrical conductivity data show localized charge carriers in the backbone. Experimental results predicting the molecular structure of tetraaniline are discussed.

Keywords

Phenyl Oligomer Electron Spin Resonance Aniline Phenyl Ring 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • Hari Singh Nalwa
    • 1
  1. 1.Material Systems EngineeringTokyo University of Agriculture and TechnologyTokyoJapan

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