View PDF Version
 
DOI: 10.1039/A700051K (Paper) Reference Section for: Chem. Commun., 1997, 623-624

Highly luminescent neutral cis-dicyano osmium(ii) complexes

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

Jack Y. K. Cheng, Kung-Kai Cheung and Chi-Ming Che

Abstract

Two highly luminescent neutral cis-dicyanoosmium(II) complexes are prepared by photoinduced oxygen atom transfer reactions of trans-[OsO2(CN)2(dpphen)] with PPh3 and Me2SO; their MLCT excited states are emissive with long lifetimes (0.20–1.99 µs) and high quantum yields [(40–1.8) ×10-2] and the emission maxima show pronounced solvatochromism.

References

  1. V. Balzani and F. Scandola, Supramolecular Photochemistry, Ellis Horwood, Chichester, 1991 Search PubMed.
  2. (a) C. A. Bignozzi and F. Scandola, Inorg. Chem., 1984, 23, 1540 CrossRef CAS; (b) C. A. Bignozzi, C. Chiorboli, M. T. Indelli, M. A. Rampi Scandola, G. Varani and F. Scandola, J. Am. Chem. Soc., 1986, 108, 7872 CrossRef CAS; (c) N. Kitamura, M. Sato, H. B. Kim, R. Obata and S. Tazuke, Inorg. Chem., 1988, 27, 651 CrossRef CAS.
  3. (a) E. M. Kober, B. P. Sullivan, W. J. Dressick, J. V. Caspar and T. J. Meyer, J. Am. Chem. Soc., 1980, 102, 7383 CrossRef CAS; (b) E. M. Kober, J. L. Marshall, W. J. Dressick, B. P. Sullivan, J. V. Caspar and T. J. Meyer, Inorg. Chem., 1985, 24, 2755 CrossRef CAS; (c) E. M. Kober, J. V. Caspar, B. P. Sullivan and T. J. Meyer, Inorg. Chem., 1988, 27, 4587 CrossRef CAS.
  4. K. F. Chin, Y. K. Cheng, K. K. Cheung, C. X. Guo and C. M. Che, J. Chem. Soc., Dalton Trans., 1995, 2967 RSC.
  5. V. W. W. Yam and C. M. Che, New J. Chem., 1989, 13, 707 Search PubMed; Coord. Chem. Rev., 1990, 97, 93 Search PubMed.
  6. V. W. W. Yam, PhD Thesis, The University of Hong Kong, 1988.
  7. J. Gotzig, A. L. Rheingold and H. Werner, Angew. Chem., Int. Ed. Engl., 1984, 23, 814 CrossRef.
  8. R. S. McMillan, A. Mercer, B. R. James and J. Trotter, J. Chem. Soc., Dalton Trans., 1975, 1006 RSC.
  9. P. G. Antonov, Y. N. Kukushkin, V. I. Konnov and B. I. Ionin, Russ. J. Inorg. Chem. (Engl. Transl.), 1978, 23, 245.
  10. B. J. Pankuch, D. E. Lacky and G. A. Crosby, J. Phys. Chem., 1980, 84, 2061 CrossRef CAS; D. E. Lacky, B. J. Pankuch and G. A. Crosby, J. Phys. Chem., 1980, 84, 2068 CrossRef CAS.
  11. J. V. Casper and T. J. Meyer, J. Phys. Chem., 1983, 87, 952 CrossRef CAS.
  12. E. M. Kober, J. V. Caspar, R. S. Lumpkin and T. J. Meyer, J. Phys. Chem., 1986, 90, 3722 CrossRef CAS.
  13. L. A. Sacksteder, J. N. Demas and B. A. DeGraff, Inorg. Chem., 1989, 28, 1787 CrossRef CAS.
  14. V. Gutmann, The Donor-Acceptor to Molecular Interactions, Plenum, New York, 1978, ch. 2 Search PubMed.
Click here to see how this site uses Cookies. View our privacy policy here.