Chemical properties of the Pd4(dppm)4(H)22+ cluster and the homogeneous electrocatalytical behavior of hydrogen evolution and formate decomposition

Inorganic Chemistry

Volumn 39, Issue 13, 2000, Pages 2909-2914

  Meilleur, Daniel ^a   Rivard, Dominique ^a   Harvey, Pierre D ^a   Gauthron, Isabelle ^b   Lucas, Dominique ^b   Mugnier, Yves ^b  

^a UNIVERSITÉ DE SHERBROOKE   (Canada)

^b UNIVERSITÉ DE BOURGOGNE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

FORMIC ACID; HYDROGEN; PALLADIUM;

ARTICLE; CATALYSIS; CLUSTER ANALYSIS; COMPLEX FORMATION; CYCLIC POTENTIOMETRY; ELECTROCHEMISTRY; EVOLUTION; SYNTHESIS;

EID: 0034717466     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic9913987     Document Type: Article

References (37)

1. Recent review: Koelle, U. New J. Chem. 1992, 16, 157.
2. x: Göttinger, Germany, 1978; pp 15-44.
3. Bhughun, I.; Lexa, D.; Savéant, J. M. J. Am. Chem. Soc. 1996, 118, 3982.
4. Collman, J. P.; Ha, Y.; Wagenknecht, P. S.; Lopez, M.-A.; Guilard, R. J. Am. Chem. Soc. 1993, 115, 9080.
5. Collman, J. P.; Ha, Y.; Wagenknecht, P. S.; Lewis, N. S. J. Am. Chem. Soc. 1992, 114, 5665.
6. Grass, V.; Lexa, D.; Savéant, J. M. J. Am. Chem. Soc. 1997, 119, 7526.
7. See refs 4 and 5 and references therein.
8. Mairanovskii, S. G. Catalytic and Kinetic Waves in Polarography; Plenum Press: New York, 1968; pp 245-261.
9. Gauthron, I.; Gagnon, J.; Zhang, T.; Rivard, D.; Lucas, D.; Mugnier, Y.; Harvey, P. D. Inorg. Chem. 1998, 37, 1112.
10. Benner, L. S.; Balch, A. L. J. Am. Chem. Soc. 1978, 100, 6099.
11. 12b So the signal at 15.9 ppm is due to its oxidized form,
12. (b) Caspar, J. V. J. Am. Chem. Soc. 1988, 110, 2145.
13. Gauthron, I.; Mugnier, Y.; Hierso, K.; Harvey, P. D. New J. Chem. 1998, 237.
14. I provides good signal-to-noise ratios in the FAB mass spectra where the detector sensitivity can be low. The relatively unstable product III exhibits a worse signal-to-noise ratio, so the detector sensitivity must be increased for the measurements. Little contamination of I inside sample III would be readily noticed. This was not the case.
15. -1), the formate acts as a bridging ligind. Nakamoto K. Z. Infrared and Raman Spectra of Inorganic and Coordination Compounds, 4th ed.; Wiley: New York, 1986; p 232.
16. Braunstein, P.; Luke, M. A.; Tiripicchio, A.; Camellini, M. T. Angew. Chem. 1987, 26, 768.
17. Braunstein, P.; Luke, M. A.; Tiripicchio, A.; Camellini, M. T. New. J. Chem. 1988, 12, 429.
18. Fortin, D.; Drouin, M.; Harvey, P. D.; Herring, F. G.; Summers, D. A.; Thompson, R. C. Inorg. Chem. 1999, 38, 1253.
19. Darensbourg, D. J.; Wiegreffe, P.; Riordam, C. G. J. Am. Chem. Soc. 1990, 112, 5759.
20. Grushin, V. V.; Bensimon, C.; Alper, H. Organometallics 1995, 14, 3259.
21. Young, S. J.; Kellenberger, B.; Reibenspies, J. M.; Himmel, S. E.; Manning, M.; Anderson, O. P.; Stille, J. K. J. Am. Chem. Soc. 1988, 110, 5744.
22. Pan, Y.; Mague, J. T.; Fink, M. J. J. Am. Chem. Soc. 1993, 115, 3842.
23. Kirss, R. U.; Eisenberg, R. Inorg. Chem. 1989, 28, 3372.
24. Hunt, D. T.; Balch, A. L. Inorg. Chem. 1981, 20, 2267.
25. Balch, A. L.; Hunt, C. T.; Lee, C.; Olmstead, M. M.; Farr, J. P. J. Am. Chem. Soc. 1981, 103, 3764.
26. Balch, A. L.; Bonner, L. S.; Olmstead, M. M. Inorg. Chem. 1979, 18, 2996.
27. 27b,c
28. (b) Yip, H.-K.; Lai, T.-F.; Che, C.-M. J. Chem. Soc., Dalton Trans. 1991, 1639.
29. (c) Hassan, F. S.; Markham, D. P.; Pringle, P. G.; Shaw, B. L. J. Chem. Soc., Dalton Trans. 1985, 279.
30. 4 core remains intact upon the two-electron oxidation. However, the presence of Pd hydrides is not formally established in this case.
31. Conneley, P.; Espenson, J. H. Inorg. Chem, 1986, 25, 2684.
32. 4 was used as a standard to test this methodology.
33. 4 did not lead to any reaction. However, additions of a large amount of TBAF slowly led to the formation of II as stated in the Experimental Section. II proves to be slightly unstable with time and could never be prepared pure.
34. 2H] = 4 or 5 equiv, then the protonation reaction is completed in less than 1 min.
35. 2H] = 4 or 5 equiv, then the protonation reaction is completed in less than 1 min.
36. Koelle, U. New J. Chem. 1992, 16, 157.
37. 2 has recently been reported. Gao, Y.; Kuncheria, J.; Yap, G. P. A.; Puddephatt, R. J. Chem. Commun. 1998, 2365.