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Volumn 130, Issue 13, 2008, Pages 4250-4252

Unusually weak metal-hydrogen bonds in HV(CO)4(P-P) and their effectiveness as H• donors

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGEN; METAL; VANADIUM;

EID: 41549162009     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja710455c     Document Type: Article
Times cited : (65)

References (45)
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    • and 1990, 112, 2843.
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    • 3H to be 17.0(1). The somewhat smaller number (16.1) given by Tilset (Tilset, M. J. Am. Chem. Soc. 1992, 114, 2740-2741) was obtained from the calorimetrically determined Cr-H bond strength and the measured E°.
    • 3H to be 17.0(1). The somewhat smaller number (16.1) given by Tilset (Tilset, M. J. Am. Chem. Soc. 1992, 114, 2740-2741) was obtained from the calorimetrically determined Cr-H bond strength and the measured E°.
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    • 2. (a) Jia, G.; Morris, R. H. Inorg. Chem. 1990, 29, 581-582.
    • 2. (a) Jia, G.; Morris, R. H. Inorg. Chem. 1990, 29, 581-582.
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    • Acidity of Hydrido Transition Metal Complexes in Solution
    • Dedieu, A, Ed, VCH: New York, Chapter 9
    • (b) Kristjánsdóttir, S. S.; Norton, J. R. Acidity of Hydrido Transition Metal Complexes in Solution. In Transition Metal Hydrides; Dedieu, A., Ed.; VCH: New York, 1991; Chapter 9.
    • (1991) Transition Metal Hydrides
    • Kristjánsdóttir, S.S.1    Norton, J.R.2
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    • CSD version 5.28 (November 2006).
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    • 2 is more basic than its dppe and dppp analogues. Sowa, J. R., Jr.; Bonanno, J. B.; Zanotti, V.; Angelici, R. J. Inorg. Chem. 1992, 31, 1370-1375.
    • 2 is more basic than its dppe and dppp analogues. Sowa, J. R., Jr.; Bonanno, J. B.; Zanotti, V.; Angelici, R. J. Inorg. Chem. 1992, 31, 1370-1375.
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    • The dissociation energy of V-H in the gas phase has been measured by guided ion beam mass spectrometry; the BDE obtained was 49.0(16) kcal/mol. (a) Chen, Y.; Clemmer, D. E.; Armentrout, P. B. J. Chem. Phys. 1993, 98, 4929-4936.
    • The dissociation energy of V-H in the gas phase has been measured by guided ion beam mass spectrometry; the BDE obtained was 49.0(16) kcal/mol. (a) Chen, Y.; Clemmer, D. E.; Armentrout, P. B. J. Chem. Phys. 1993, 98, 4929-4936.
  • 30
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    • Gas Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends
    • Freiser, B. S, Ed, Kluwer: Boston
    • (b) Armentrout, P. B.; Kickel, B. L. Gas Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends. In Organometallic Ion Chemistry; Freiser, B. S., Ed.; Kluwer: Boston, 1996; pp 1-45.
    • (1996) Organometallic Ion Chemistry , pp. 1-45
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    • +, in Berning, D. E.; Miedaner, A.; Curtis, C. J.; Noll, B. C.; DuBois, D. L. Organometallics 2001, 20, 1832-1839.
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    • +, in Ciancanelli, R.; Noll, B. C.; DuBois, D. L.; DuBois, M. R. J. Am. Chem. Soc. 2002, 124, 2984-2992.
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    • a and E° results over repeated measurements of ±0.3 kcal/mol.
    • a and E° results over repeated measurements of ±0.3 kcal/mol.
  • 34
    • 41549154031 scopus 로고    scopus 로고
    • 22 and considerations of internal consistency suggest that the absolute uncertainty of our BDE values is a little over 1 kcal/mol. For a detailed discussion of these issues, see Choi, Jongwook. Ph.D. Thesis, Columbia University, 2007.
    • 22 and considerations of internal consistency suggest that the absolute uncertainty of our BDE values is a little over 1 kcal/mol. For a detailed discussion of these issues, see Choi, Jongwook. Ph.D. Thesis, Columbia University, 2007.
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    • It has been suggested22 that M-H bonds weaker than 56 kcal/mol are thermodynamically unstable at room temperature with respect to H 2 evolution. This estimate is based on the observed ΔS for the binding of H2 to L2M(CO)3 M, Cr, Mo, Gonzalez, A. A, Hoff, C. D. Inorg. Chem. 1989, 28, 4295-4297
    • 3 (M = Cr, Mo): Gonzalez, A. A.; Hoff, C. D. Inorg. Chem. 1989, 28, 4295-4297.
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    • 2 has been reported: Aharonian, G.; Gambarotta, S.; Yap, G. P. A. Organometallics 2001, 20, 5008-5010.
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