Chiroptical properties of diaryl-spiro-λ4-sulfanes: An exciton chirality model

Sz Szendeffy, Sz Szarvas, D. Szabó, I. Kapovits, M. Hollósi

Research output: Contribution to journalArticle

6 Citations (Scopus)


An exciton couplet was found in the 1L(a) region of the CD spectrum of optically active 1,1'-spirobi[3H-2,1-benzoxathiol]-3-one with known absolute configuration {(R)-(+)-2}. Other spiro-λ4-sulfanes containing two benzene rings (1a-b, 3a-b) showed similar spectra. No couplet-like bands were seen in the CD spectrum of the naphthalene derivative 5, but the interaction between the benzene 1L(a) and the naphthalene 1B(b) transitions in the molecule 6 also caused splitting due to exciton coupling. CD spectroscopy allows a determination of the absolute configuration of trigonal bipyramidal spiro-λ4-sulfanes 1-3 by using the exciton chirality method.

Original languageEnglish
Pages (from-to)323-329
Number of pages7
Issue number4-5
Publication statusPublished - Dec 1 1998


  • Absolute configuration
  • Chiral liquid chromatography
  • Circular dichroism
  • Exciton chirality
  • Spirosulfane
  • Spirosulfurane

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry
  • Biochemistry, Genetics and Molecular Biology(all)
  • Organic Chemistry

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