A chromium(VI) nitrido-silylmethyl complex and a chromium(V) μ-nitrido dimer: Synthetic and structural details

Organometallics

Volumn 15, Issue 3, 1996, Pages 898-900

  Odom, Aaron L ^a   Cummins, Christopher C ^a  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001693066     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om950842k     Document Type: Article

References (24)

1. Odom, A. L.; Cummins, C. C.; Protasiewicz, J. D. J. Am. Chem. Soc. 1995, 117, 6613.
2. Dehnicke, K.; Strähle, J. Angew. Chem., Int. Ed. Engl. 1992, 31, 955-978.
3. See the following and references therein: Herrmann, W. A.; Bogdanovic, S.; Poli, R.; Priermeier, T. J. Am. Chem. Soc. 1994, 116, 4989.
4. σ-Alkyls of chromium(VI) are rare. See the following for some lead references and examples: (a) Meijboom, N.; Schaverien, C. J.; Orpen, A. G. Organometallics 1990, 9, 774. (b) Noh, S.-K.; Heintz, R. A.; Haggerty, B. S.; Rheingold, A. L.; Theopold, K. H. J. Am. Chem. Soc. 1992, 114, 1892. (c) Sullivan, A. C.; Wilkinson, G.; Motevalli, M.; Hursthouse, M. B. J. Chem. Soc., Dalton Trans. 1988, 53. (d) Danopoulos, A. A.; Leung, W.-H.; Wilkinson, G.; Hussain-Bates, B.; Hursthouse, M. B. Polyhedron 1990, 9, 2625.
5. σ-Alkyls of chromium(VI) are rare. See the following for some lead references and examples: (a) Meijboom, N.; Schaverien, C. J.; Orpen, A. G. Organometallics 1990, 9, 774. (b) Noh, S.-K.; Heintz, R. A.; Haggerty, B. S.; Rheingold, A. L.; Theopold, K. H. J. Am. Chem. Soc. 1992, 114, 1892. (c) Sullivan, A. C.; Wilkinson, G.; Motevalli, M.; Hursthouse, M. B. J. Chem. Soc., Dalton Trans. 1988, 53. (d) Danopoulos, A. A.; Leung, W.-H.; Wilkinson, G.; Hussain-Bates, B.; Hursthouse, M. B. Polyhedron 1990, 9, 2625.
6. σ-Alkyls of chromium(VI) are rare. See the following for some lead references and examples: (a) Meijboom, N.; Schaverien, C. J.; Orpen, A. G. Organometallics 1990, 9, 774. (b) Noh, S.-K.; Heintz, R. A.; Haggerty, B. S.; Rheingold, A. L.; Theopold, K. H. J. Am. Chem. Soc. 1992, 114, 1892. (c) Sullivan, A. C.; Wilkinson, G.; Motevalli, M.; Hursthouse, M. B. J. Chem. Soc., Dalton Trans. 1988, 53. (d) Danopoulos, A. A.; Leung, W.-H.; Wilkinson, G.; Hussain-Bates, B.; Hursthouse, M. B. Polyhedron 1990, 9, 2625.
7. σ-Alkyls of chromium(VI) are rare. See the following for some lead references and examples: (a) Meijboom, N.; Schaverien, C. J.; Orpen, A. G. Organometallics 1990, 9, 774. (b) Noh, S.-K.; Heintz, R. A.; Haggerty, B. S.; Rheingold, A. L.; Theopold, K. H. J. Am. Chem. Soc. 1992, 114, 1892. (c) Sullivan, A. C.; Wilkinson, G.; Motevalli, M.; Hursthouse, M. B. J. Chem. Soc., Dalton Trans. 1988, 53. (d) Danopoulos, A. A.; Leung, W.-H.; Wilkinson, G.; Hussain-Bates, B.; Hursthouse, M. B. Polyhedron 1990, 9, 2625.
8. (a) Bradley, D. C.; Newing, C. W. J. Chem. Soc. D 1970, 219.
9. (b) Bradley, D. C.; Hursthouse, M. B.; Newing, C. W.; Welch, A. J. J. Chem. Soc., Chem. Commun. 1972, 567.
10. 3 in ether.
11. Methyl iodide is also known to effect iodide-for-amide exchange: Johnson, A. R.; Wanandi, P. W.; Cummins, C. C.; Davis, W. M. Organometallics 1994, 13, 2907.
12. 3: C, 36.65; H, 7.18; N, 10.68. Found: C, 36.58; H, 7.07; N, 10.51.
13. Cotton, F. A. Chemical Applications of Group Theory; Wiley: New York, 1990.
14. Collier, M. R.; Lappert, M. F.; Pearce, R. J. Chem. Soc., Dalton Trans. 1973, 445.
15. 3Si: C, 60.68; H, 9.94; N, 10.11. Found: C, 61.07; H, 10.12; N, 10.01.
16. -3.
17. 2 is 1.531(7) Å, as determined by single-crystal X-ray diffraction: Odom, A. L.; Cummins, C. C. Unpublished results.
18. 6: C, 54.11; H, 10.60; N, 15.77. Found: C, 54.22; H, 11.12; N, 15.50.
19. -3.
20. B (Evans method), and preliminary temperature-dependent solid-state magnetic data obtained using a SQUID magnetometer are indicative of antiferromagnetism.
21. Berno, P.; Gambarotta, S. Angew. Chem., Int. Ed. Engl. 1995, 34, 822. See also: Haddad, T. S.; Aistars, A.; Ziller, J. W.; Doherty, N. M. Organometallics 1993, 12, 2420.
22. Berno, P.; Gambarotta, S. Angew. Chem., Int. Ed. Engl. 1995, 34, 822. See also: Haddad, T. S.; Aistars, A.; Ziller, J. W.; Doherty, N. M. Organometallics 1993, 12, 2420.
23. Kinetic data for the decomposition of 3 at 60 ± 0.5 °C were obtained by UV-vis at 333 nm; the rate constant given is the average for four runs with an error calculated on the basis of reproducibility at the 95% confidence interval.
24. 2 ligand find recent precedent in vanadium chemistry: Song, J. I.; Berno, P.; Gambarotta, S. J. Am. Chem. Soc. 1994, 116, 6927.