First molecular and electronic structure determination of the dicationic salt of 1,11-(methanoselenomethano)-5H,7H-dibenzo[b,g] [1.5]diselenocin by X-ray crystallographic analysis and ab initio calculation

(Note: The full text of this document is currently only available in the PDF Version )

Tsukasa Nakahodo, Ohgi Takahashi, Ernst Horn and Naomichi Furukawa


Abstract

The X-ray crystallographic analysis of the dication salt of 1,11-(methanoselenomethano)-5H,7H-dibenzo[b,g] [1,5]- diselenocin shows that the dication has a selenium atom in a trigonal-bipyramidal bonding environment; an ab initio calculation carried out for the dication revealed that the positive charge is exclusively carried by the three selenium atoms.


References

  1. H. Fujihara, H. Mima, T. Erata and N. Furukawa, J. Am. Chem. Soc., 1992, 114, 3117 CrossRef CAS.
  2. H. Fujihara, N. Oi, R. Akaishi, T. Kawai and N. Furukawa, Heterocycles, 1989, 29, 441 CAS.
  3. The Chemistry of Organic Selenium and Tellurium Compounds, ed. S. Patai and Z. Rappoport, Wiley, New York, vol. 1 and 2, 1986 and 1988 Search PubMed.
  4. H. Fujihara, T. Nakahodo and N. Furukawa, Chem. Commun., 1996, 311 RSC.
  5. The calculation was carried out on a HP 735/125 workstation using Spartan 3. 1 (Wavefunction Inc.).
  6. A. E. Reed, R. B. Weinstock and F. Weinhold, J. Chem. Phys., 1985, 83, 735 CrossRef CAS.
  7. A. E. Reed and P. v. R. Schleyer, J. Am. Chem. Soc., 1990, 112, 1434 CrossRef CAS.
  8. R. E. Rundle, J. Am. Chem. Soc., 1963, 85, 112 CrossRef CAS.
  9. J. I. Musher, Angew. Chem., Int. Ed. Engl., 1969, 8, 54 CrossRef CAS.
  10. DIFABS An empirical absorption correction program: N. Waker and D. Stuart, Acta Crystallogr., Sect. A, 1983, 39, 158 Search PubMed.
  11. teXsan: Crystal Structure Analysis Package, Molecular structure Corp. The Woodlands, TX, 1985, 1992.
Click here to see how this site uses Cookies. View our privacy policy here.