Imidodiphosphinate ligands as antenna units in luminescent lanthanide complexes

Abstract

Imidodiphosphinate ligands form a hydrophobic shell around terbium and europium ions leading to long-lived, highly luminescent complexes.

References

1. V. Balzani and F. Scandola, Supramolecular Photochemistry, Ellis Horwood, Chichester, UK, 1991; A. P. de Silva, H. Q. Nimal Gunaratne, T. Gunnlaugsson, A. J. M. Huxley, C. P. McCoy, J. T. Rademacher and T. E. Rice, Chem. Rev., 1997, 97, 1515; T. Gunnlaugsson and D. Parker, Chem. Commun., 1998, 511.
2. J.-M. Lehn, Angew. Chem., Int. Ed. Engl., 1988, 27, 89; Supramolecular Chemistry, VCH, Weinheim, 1995.
3. N. Sabbatini, M. Guardigli and J.-M. Lehn, Coord. Chem. Rev., 1993, 123, 201 and references therein.
4. M. P. Lowe, P. Caravan, S. J. Rettig and C. Orvig, Inorg. Chem., 1998, 37, 1637; G. Ulrich, M. Hissler, R. Ziessel, I. Manet, G. Sarti and N. Sabbatini, New J. Chem., 1997, 21, 147; D. A. Bardwell, J. C. Jeffery, P. L. Jones, J. A. McCleverty, E. Psillakis, Z. Reeves and M. D. Ward, J. Chem. Soc., Dalton Trans., 1997, 2079.
5. L. J. Charbonnière, C. Balsiger, K. J. Schenk and J.-C. G. Bünzli, J. Chem. Soc., Dalton Trans., 1998, 505; M. P. Oude Wolbers, F. C. J. M. van Veggel, R. H. M. Heeringa, J. W. Hofstraat, F. A. J. Geurts, G. J. van Hummel, S. Harkema and D. N. Reinhoudt, Liebigs Ann./Recueil, 1997, 2587; G. Ulrich, R. Ziessel, I. Manet, M. Guardigli, N. Sabbatini, F. Fraternali and G. Wipff, Chem. Eur. J., 1997, 3, 1815; N. Sabbatini, M. Guardigli, A. Mecati, V. Balzani, R. Ungaro, E. Ghidini, A. Casnati and A. Pochini, J. Chem. Soc., Chem. Commun., 1990, 878.
6. C. Piguet, G. Bernardinelli and G. Hopfgartner, Chem. Rev., 1997, 97, 2005.
7. S. Aime, M. Botta, R. S. Dickins, C. L. Maupin, D. Parker, J. P. Riehl and J. A. G. Williams, J. Chem. Soc., Dalton Trans., 1998, 881; P. R. Selvin, J. Jancarik, M. Li and L.-W. Hung, Inorg. Chem., 1996, 35, 700; N. Sato and S. Shinkai, J. Chem. Soc., Perkin Trans. 2, 1993, 621.
8. M. A. Mortellaro and D. G. Nocera, J. Am. Chem. Soc., 1996, 118, 7414; Z. Pikramenou, J.-a. Yu, A. Ponce and D. G. Nocera, Coord. Chem. Rev., 1994, 132, 181; Z. Pikramenou and D. G. Nocera, Inorg. Chem., 1992, 31, 532.
9. Some lanthanide complexes of tpip have previously been prepared as NMR shift reagents: N. Platzer, H. Rudler, C. Alvarez, L. Barkaoui, B. Denise, N. Goasdoué, M. -N. Rager, J. Vaissermann and J. -C. Daran, Bull. Soc. Chim. Fr., 1995, 132, 95; I. Rodriguez, C. Alvarez, J. Gomez-Lara, R. A. Toscano, N. Platzer, C. Mulheim and H. Rudler, J. Chem. Soc., Chem. Commun., 1987, 1502.
10. Y. Haas and G. Stein, J. Phys. Chem., 1972, 76, 1093; D. Parker and J. A. G. Williams, J. Chem. Soc., Dalton Trans., 1996, 3613.
11. The presence of a C–H bond in the binding site of the diketonates is further detrimental to the lifetimes of these complexes. For a general reference see: G. E. Buono-Cuore, H. Li and B. Marciniak, Coord. Chem. Rev., 1990, 99, 55.
12. W. DeW. Horrocks, Jr. and D. R. Sudnick, Acc. Chem. Res., 1981, 14, 384.
13. Y. Haas and G. Stein, J. Phys. Chem., 1971, 75, 3668.
14. G. M. Sheldrick, SHELXL-97, Siemens Analytical X-ray, 1995.
15. D. J. Watkin, C. K. Pront, J. R. Carruthus and P. W. Betteridge, CRYSTALS, University of Oxford, 1996.