Self-assembly and X-ray structure of a ten-component, three-dimensional metallosupramolecular cage

Abstract

Reaction of 1,3,5-tris(pyrazol-1-ylmethyl)-2,4,6-triethyl-benzene 7 with palladium chloride results in the self-assembly of a three-dimensional cage; an X-ray crystal structure determination shows that the cage is comprised of an octahedral arrangement of six palladium atoms bridged by a tetrahedral network of four molecules of the ligand and contains a (disordered) guest molecule of dimethyl sulfoxide.

References

1. D. S. Lawrence, T. Jiang and M. Levett, Chem. Rev., 1995, 95, 2229 and references therein.
2. C. Seel and F. Vögtle, Angew. Chem., Int. Ed. Engl., 1992, 31, 529; C. A. Hunter, Angew. Chem., Int. Ed. Engl., 1995, 34, 1079.
3. M. Fujita, O. Sasaki, T. Mitsuhashi, T. Fujita, J. Yazaki, K. Yamaguchi and K. Ogura, Chem. Commun., 1996, 1535; M. Fujita and K. Ogura, Coord. Chem. Rev., 1996, 148, 249; Bull. Chem. Soc. Jpn., 1996, 69, 1471 and references therein; R. V. Slone, J. T. Hupp, C. L. Stern and T. E. Albrecht-Schmitt, Inorg. Chem., 1996, 35, 4096; B. Olenyuk, J. A. Whiteford and P. J. Stang, J. Am. Chem. Soc., 1996, 118, 8221 and references therein.
4. P. Baxter, J.-M. Lehn, A. DeCian and J. Fischer, Angew. Chem., Int. Ed. Engl., 1993, 32, 69.
5. M. Fujita, S. Nagao and K. Ogura, J. Am. Chem. Soc., 1995, 117, 1649.
6. M. Fujita, D. Oguro, M. Miyazawa, H. Oka, K. Yamaguchi and H. Ogura, Nature, 1995, 378, 469.
7. C. M. Hartshorn and P. J. Steel, Inorg. Chem., 1996, 35, 6902.
8. C. M. Hartshorn and P. J. Steel, Aust. J. Chem., 1995, 48, 1587.
9. C. M. Hartshorn and P. J. Steel, Angew. Chem., Int. Ed. Engl., 1996, 35, 2655.
10. For a related strategy in a different context see: C. Walsdorff, W. Saak and S. Pohl, J. Chem. Res. (S), 1996, 282.
11. A. W. van der Made and R. H. van der Made, J. Org. Chem., 1993, 58, 1262.
12. R. W. Saalfrank, R. Burak, A. Breit, D. Stalke, R. Herbst-Irmer, J. Daub, M. Porsch, E. Bill, M. Muther and A. X. Trautwein, Angew. Chem., Int. Ed. Engl., 1994, 33, 1621; T. Beissel, R. E. Powers and K. N. Raymond, Angew. Chem., Int. Ed. Engl., 1996, 35, 1084.
13. F. Vögtle, J. Gross, C. Seel and M. Nieger, Angew. Chem., Int. Ed. Engl., 1992, 31, 1069.
14. P. J. Fagan, J. C. Calabrese and B. Malone, J. Am. Chem. Soc., 1991, 113, 9408; Acc. Chem. Res., 1992, 25, 134.