Investigation of the formation reaction and structural characterization of the 'platinum Grignard reagent' [Pt(MgCl)2(THF)(x)] by extended X-ray absorption fine structure (EXAFS) and other methods

Chemistry - A European Journal

Volumn 3, Issue 10, 1997, Pages 1710-1718

  Aleandri, Lorraine E ^a   Bogdanović, Borislav ^a   Dürr, Christine ^a   Huckett, Sara C ^a   Jones, Deborah J ^b   Kolb, Uwe ^a   Lagarden, Martin ^a   Rozière, Jacques ^b   Wilczok, Ursula ^a  

^a Max Planck Instilut F K   (Germany)

^b UNIVERSITÉ DE MONTPELLIER   (France)

Author keywords

Cluster; EXAFS spectroscopy; Grignard reactions; Magnesium; Platinum

Indexed keywords

EID: 0030864401     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.19970031020     Document Type: Article

References (44)

1. a) L. E. Aleandri, B. Bogdanović, P. Bons, C. Dürr, A. Gaidies, T. Hartwig, S. C. Huckett, M. Lagarden, U. Wilczok, R. A. Brand, Chem. Mater. 1995, 7, 1153;
2. b) L. E. Aleandri, B. Bogdanović, C. Dürr, D. J. Jones, J. Rozière, U. Wilczok; Adv. Mater. 1996, 8, 600;
3. c) L. E. Aleandri, B. Bogdanović in Active Metals (Ed.: A. Fürstner) VCH, Weinheim, 1996, pp. 299-338.
4. Preliminary communication: L. E. Aleandri, B. Bogdanović, C. Dürr, U. Wilczok, D. J. Jones, J. Rozière, Physica B 1995, 208 & 209, 500.
5. Preliminary communication: L. E. Aleandri, B. Bogdanović, C. Dürr, M. Lagarden, K. Schlichte, Poster presented at the 24. GDCh Hauptversammlung, Hamburg 5-11 Sept. 1993; Kurzreferate: AC 30, p. 203.
6. 2Mg, EtMgCl can be used for the preparation of 2; see Table 3, experiment 5.
7. Based on the sharpness of these signals, 2 does not appear to be paramagnetic.
8. 2Mg (B. Bogdanović, S. C. Huckett, U. Wilczok, A. Rufinska, Angew. Chem. 1988, 100, 1569; Angew. Chem. Int. Ed. Engl. 1988, 27, 1513), organo-bimetallic Pt-Mg complexes could be formed as intermediates.
9. 2Mg (B. Bogdanović, S. C. Huckett, U. Wilczok, A. Rufinska, Angew. Chem. 1988, 100, 1569; Angew. Chem. Int. Ed. Engl. 1988, 27, 1513), organo-bimetallic Pt-Mg complexes could be formed as intermediates.
10. 195Pt NMR signals in solutions of Pt colloids has been explained by the presence of disordered Pt surfaces which causes strong broadening of resonance lines: J. S. Bradley, J. M. Millar, E. W. Hill, S. Behal, J. Catal. 1991, 129, 530.
11. R. Benn, A. Rufinska, Angew. Chem. 1986, 98, 851; Angew. Chem. Int. Ed. Engl. 1986, 25, 861.
12. R. Benn, A. Rufinska, Angew. Chem. 1986, 98, 851; Angew. Chem. Int. Ed. Engl. 1986, 25, 861.
13. L. E. Aleandri, B. Bogdanović, A. Gaidies, D. J. Jones, S. Liao, A. Michalowicz, J. Rozière, A. Schott, J. Organomet. Chem. 1993, 459, 87.
14. a) T. Yokoyama, S. Kimoto, T. Ohta, Jap. J. Applied Phys. 1989, 28, L851
15. b) H. Kuroda, T. Yokoyama, K. Asakura, Y. Iwasawa, Faraday Discuss. 1991 92, 189.
16. c) L. Tröger, T. Yokoyama, D. Arvanitis, T. Lederer, M. Tischler, K. Baberschke, Phys. Rev. B. 1994, 49, 888.
17. M. Lagarden, Dissertation, Bochum University, 1992.
18. 2 in THF: C. Dürr, Dissertation, Bochum University, 1995.
19. S. N. Khanna, J. P. Bucher, J. Buttet, F. Cyrot-Lackmann, Surface Sci. 1983, 127, 165.
20. C. Solliard, M. Flueli, Surface Sci. 1985, 156, 487.
21. N. S. Guyot-Sionnest, F. Villain, D. Bazin, H. Dexpert, F. Le Peltier, J. Lynch, J. P. Bournonville in X-ray Absorption Fine Structure (Ed.: S. S. Hasnain), Ellis Horwood, 1991, pp. 493.
22. 55 cluster is 10.7 Å.
23. D. G. Duff, P. P. Edwards, J. Evans, J. T. Gauntlett, D. A. Jefferson, B. F. G. Johnson, A. I. Kirkland, D. J. Smith, Angew. Chem. 1989, 101, 610; Angew. Chem. Int. Ed. Engl. 1989, 28, 590.
24. D. G. Duff, P. P. Edwards, J. Evans, J. T. Gauntlett, D. A. Jefferson, B. F. G. Johnson, A. I. Kirkland, D. J. Smith, Angew. Chem. 1989, 101, 610; Angew. Chem. Int. Ed. Engl. 1989, 28, 590.
25. G. Schmid, in: "Structure and Bonding 62 - Clusters", 52, Springer-Berlin, 1985.
26. B. K. Teo, J. A. Sloane, Inorg. Chem. 1985, 24, 4545.
27. B. Moraweck, A. J. Renouprez, Surface Sci. 1981, 106, 35.
28. With the program ATOMS, Version 2.44a, B. Ravel, University of Washington.
29. R/1.902113 leads to the real distances. The coordinates of the atoms in the second shell between the edge points of the tetrahedrons were determined by calculating the position at half distance from both sides. For details see ref. [17], Chart XIII and Chapt. V. The coordinates were not calculated with the formula of the subchapter "Icosahedron".
30. J. J. Rehr, S. I. Zabinsky, R. C. Albers, Phys. Rev. Let. 1992, 69, 3397; J. Mustre de Leon, J. J. Rehr, S. I. Zabinsky, R. C. Albers, Phys. Rev. 1991, B44, 4146.
31. J. J. Rehr, S. I. Zabinsky, R. C. Albers, Phys. Rev. Let. 1992, 69, 3397; J. Mustre de Leon, J. J. Rehr, S. I. Zabinsky, R. C. Albers, Phys. Rev. 1991, B44, 4146.
32. J. J. Rehr, Surface Review Lett. 1995, 2, 63.
33. The Debye temperature was determined by a fitting procedure without taking account of the contribution from a carbon back-scatterer. Therefore, no further conclusion based on these values should be made. The amplitude-reducing factor SO was set to 1.0, RMAX was set to the value of cluster size, the CORRECTION card was not used in the FEFF calculations.
34. However, a TEM image of isolated Pt* suspended in ethanol showed the presence of much larger, nanocrystalline Pt particles (3-3.5 nm diameter) (see Experimental Section and the dissertation cited in ref. [11]; they apparently result from the aggregation of Pt* particles by treatment with ethanol or for other reasons (cf. ref. [7]).
35. R. Franke, J. Rothe, J. Pollman, J. Hormes, H. Bönnemann, W. Brijoux, T. Hindenburg, J. Am. Chem. Soc. 1996, 118, 12090.
36. ≈0.3]. The same phenomenon is also demonstrated by solutions of 1 [1a].
37. J. S. Bradley, G. H. Via, L. Bonneviot, E. Hill, Chem. Mater. 1996, 8, 1895 and references therein.
38. K. J. Klabunde, G. Cardenas-Trivino in Active Metals (Ed.: A. Fürstner), VCH, Weinheim, 1996, pp. 237-278.
39. O. A. Ferretti, C. Lucas, J. P. Candy, J.-M. Basset, B. Didillon, F. LePeltier, J. Mol. Catal. A 1995, 103, 125 and references therein.
40. F. Villain, V. Briois, I. Castro, C. Helary, M. Verdaguer, Anal. Chem. 1993, 65, 2545.
41. A. Michalowicz, "EXAFS pour la MAC" in Société Française de Chimie, Logiciels pour la Chimie (Paris, 1991), p. 102-103.
42. A. G. McKale, J. Am. Chem. Soc. 1988, 110, 3763.
43. B. Bogdanović, S. Liao, K. Schlichte, U. Westeppe in Synthetic Methods of Organometallic and Inorganic Chemistry, Vol. 1 (Eds.: W. A. Herrmann, A. Salzer), Thieme, Stuttgart, 1996, p. 43.
44. B. Bogdanović, B. Spliethoff, Chem. Ing. Tech. 1983, 55, 156.