Divalent tin and lead complexes of a bulky salen ligand: The syntheses and structures of [SalenBut,Me]Sn and [SalenBut,Me]Pb

Journal of the Chemical Society - Dalton Transactions

Volumn , Issue 20, 1999, Pages 3559-3563

  Kuchta, Matthew C ^a   Hahn, Juliet M ^a   Parkin, Gerard ^a  

^a Howard Hughes Medical Institute   (United States)

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[No Author keywords available]

Indexed keywords

EID: 33748957762     PISSN: 03009246     EISSN: None     Source Type: Journal    
DOI: 10.1039/a905490a     Document Type: Article

References (45)

1. (a) M. C. Kuchta and G. Parkin, J. Chem. Soc., Chem. Commun., 1994, 1351;
2. (b) M. C. Kuchta and G. Parkin, J. Am. Chem. Soc., 1994, 116, 8372;
3. (c) M. C. Kuchta and G. Parkin, Chem. Commun., 1996, 1669.
4. For further oxidativc addition chemistry of [r|4-Meataa]Sn see: M. C. Kuchta and G. Parkin, Polyhedron, 1996, 15, 4599.
5. For a review of terminal chalcogenido complexes, see: M. C. Kuchta and G. Parkin, Coord. Chem. Rev., 1998, 176, 323.
6. M. C. Kuchta and G. Parkin, New J. Chem., 1998, 22, 523.
7. T. Hascall, A. L. Rheingold, I. Guzei and G. Parkin, Chem. Commun., 1998, 101.
8. For reviews of transition metal Salen complexes see: (a) M. D. Hobday and T. D. Smith, Coord. Chem. Rev., 1972-1973, 9, 311;
9. (b) R. H. Holm, G. W. Everett, Jr. and A. Chakravorty, Prog. Inorg. Chem., 1966, 7, 83.
10. (a) D. A. Atwood, M. S. Hill, J. A. Jegier and D. Rutherford, Organometallics, 1997, 16, 2659;
11. (b) D. A. Atwood and D. Rutherford, Organometallics, 1996, 15, 4417 and refs. therein;
12. (c) D. A. Atwood, J. A. Jegier and D. Rutherford, Inorg. Chem., 1996, 35, 63;
13. (d) M. G. Davidson, C. Lambert, I. Lopez-Solera, P. R. Raithby and R. Snaith, Inorg. Chem., 1995, 34, 3765;
14. (e) J. T. Leman, J. Braddock-Wilking, A. J. Coolong and A. R. Barron, Inorg. Chem., 1993, 32, 4324;
15. (f) D. A. Atwood, J. A. Jegier and D. Rutherford, Bull. Chem. Soc. Jpn., 1997, 70, 2093;
16. (g) M. S. Hill, P. R. Wei and D. A. Atwood, Polyhedron, 1998, 17, 811.
17. 2NH group, has also been studied recently. For a review of Salan complexes of the Group 12, 13, and 14 elements, see: D. A. Atwood, Coord. Chem. Rev., 1997, 165, 267.
18. But,Me]AlR (R = Me, Et), have been prepared. See: I. Taden, H.-C. Kang, W. Massa and J. Okuda, J. Organomet. Chem., 1997, 540, 189.
19. This method has previously been used for the synthesis of [Salen]Sn and related complexes. See: A. M. van den Bergen, J. D. Cashion, G. D. Fallon and B. O. West, Aust. J. Chem., 1990, 43, 1559.
20. II, see: J. Parr, Polyhedron, 1997, 16, 551.
21. [Saldph] differs from [Salen] in being derived from 4,5-dimethylphenylene-1,2-diamine rather than ethylenediamine.
22. CSD Version 5.17. 3D Search and Research Using the Cambridge Structural Database, F. H. Allen and O. Kennard, Chem. Des. Automat. News, 1993, 8 (1), pp. 1, 31-37.
23. There is one related divalent tin complex listed in the Cambridge Structural Database, namely [Salean]Sn. See: D. A. Atwood, J. A. Jegier, K. J. Martin and D. Rutherford, J. Organomet. Chem., 1995, 503, C4.
24. (a) W. D. Honnick and J. Zuckerman, Inorg. Chem., 1979, 18, 1437 and refs. therein;
25. (b) D. K. Dey, M. K. Das and H. Nöth, Z. Naturforsch., Teil B, 1999, 54, 145.
26. F. Di Bianca, E. Rivarola, G. C. Stocco and R. Barbieri, Z. Anorg. Allg. Chem., 1972, 387, 126.
27. For a review of organotin Schiff base complexes, which include Salen derivatives, see: M. Nath and S. Goyal, Main Group Met. Chem., 1996, 19, 75.
28. L. Pauling, The Nature of the Chemical Bond, Cornell University Press, Ithaca, New York, 3rd edn., 1960, p. 256.
29. 2 are, however, known. See, for example: (a) J. Parr, A. T. Ross and A. M. Z. Slawin, J. Chem. Soc., Dalton Trans., 1996, 1509;
30. (b) J. Parr, A. T. Ross and A. M. Z. Slawin, Polyhedron, 1997, 16, 2765.
31. 2] coordination core is planar and the ligand adopts an approximately planar geometry, see: A. G. Manfredotti and C. Guastini, Acta Crystallogr., Sect. C, 1983, 39, 863.
32. 207Pb (l = 1/2, 22.1%). See: J. Emsley, The Elements, Clarendon Press, Oxford, 2nd edn., 1991.
33. 2] mirror plane (see Fig. 2 and 3). If the bridge is sufficiently flexible that a planar arrangement may be obtained, the spin system simplifies to AA′BB′.
34. 207Pb-H) coupling at high temperatures suggests that dissociation of lead is not involved and that the exchange is intramolecular.
35. -1.
36. 117Sn)= 1.05, due to the ratio of the respective magnetogyric ratios. See ref. 21.
37. A. van den Bergen, R. J. Cozens and K. S. Murray, J. Chem. Soc. A, 1970, 3060.
38. (a) J. P. McNally, V. S. Leong and N. J. Cooper, A. C. S. Symp. Ser., 1987, 357, 6;
39. (b) B. J. Burger and J. E. Bercaw, A. C. S. Symp. Ser., 1987, 357, 79.
40. (a) D. H. Harris and M. F. Lappert, J. Chem. Soc., Chem. Commun., 1974, 895;
41. (b) M. J. S. Gynane, D. H. Harris, M. F. Lappert, P. P. Power, P. Rivière and M. Rivière-Baudet, J. Chem. Soc., Dalton Trans., 1977, 2004.
42. G. Casiraghi, G. Casnati, G. Puglia, G. Sartori and G. Terenghi, J. Chem. Soc., Perkin Trans. 1, 1980, 1862.
43. See, for example: W. Zhang and E. N. Jacobsen, J. Org. Chem., 1991, 56, 2296.
44. Multinuclear NMR, ed. J. Mason, Plenum Press, New York, 1987.
45. G. M. Sheldrick, SHELXTL, An Integrated System for Solving, Refining and Displaying Crystal Structures from Diffraction Data, University of Göttingen, 1981.