Effect of Aliphatic Amine Bases on the Aggregation of Alkali Metal Salts of 3,5-Di-tert-butylsemiquinone (3,5-DBSQ)

Inorganic Chemistry

Volumn 37, Issue 7, 1998, Pages 1540-1543

  Shultz, David A ^a   Boal, Andrew K ^a   Camphell, Neil P ^a  

^a NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000233299     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic971113v     Document Type: Article

References (22)

1. Shultz, D. A.; Boal, A. K.; Driscoll, D. J.; Kitchin, J. R.; Tew, G. N. J. Org. Chem. 1995, 60, 3578-3579.
2. Shultz, D. A.; Boal, A. K.; Driscoll, D. J.; Farmer, G. T.; Hollomon, M. G.; Kitchin, J. R.; Miller, D. B.; Tew, G. N. Mol. Cryst. Liq. Ctyst. 1997, 305, 303-310.
3. Shultz, D. A. Unpublished results.
4. Wagner, M. J.; Dye, J. L. J. Solid State Chem. 1995, 117, 309.
5. Brown, M. A.; MeGarvey, B. R.; Ozarowski, A.; Tuck, D. G. J. Am. Chem. Soc. 1996, 118, 9691-9694.
6. Dougherty, D. A. In Kinetics and Spectroscopy of Carbenes and Biradicals; Platz, M. S., Ed.; Plenum Press: New York, 1990.
7. Hudson, A.; Luckhurst, G. R. Chem. Rev. 1969, 69, 191-225.
8. Plachy, W.; Kivelson, D. J. Chem. Phys. 1967, 47, 3312-3318.
9. Wertz, J. E.; Bolton, J. R. Electron Spin Resonance: Chapman and Hall: New York, 1986.
10. Hubberstey, P. Coord. Chem. Rev. 1985, 66, 1-92.
11. Hubberstey, P. Coord. Chem. Rev. 1986, 75, 1-99.
12. Hubberstey, P. Coord. Chem. Rev. 1988, 85, 1-85.
13. Fraenkel, G.; Winchester, W. R. J. Am. Chem. Soc. 1988, 110, 87208721.
14. Fluid solution EPR spectra were simulated using the following: Duling, D. EPR Calculations for MS-Windows NT/95, Version 0.96: Public EPR Software Tools: National Institute of Environmental Health Sciences. National Institutes of Health: Research Triangle Park, NC., 1996.
15. Aggregates with J > a would have twice as many hyperfine lines. The J > a spectral type is expected since every metal semiquinone complex exhibits exchange couplings far exceeding the hyperfine couplings reported here: sec ref 19.
16. 14N hfcc was not observed in Tuck's pyridine coordinated complexes; see ref 5.
17. Coupling constants from all simulations are available in Supporting Information.
18. Fraenkel, G.; Chow, A.; Winchester, W. R. J. Am. Chem. Soc. 1990, 112, 6190-6198.
19. Pierpont, C. G.; Lunge, C. W. Prog. Inorg. Chem. 1994, 41, 331. To our knowledge, all reported semiquinone-semiquinone and metal semiquinone exchange couplings are far greater than any hfcc in DBSQ.
20. Glarum, S. H.; Marshall, J. H. J. Chem. Phys. 1967, 47, 1374-1378.
21. Luckhurst, G. R. Mol. Phys. 1966, 10, 543-550.
22. See ref 1 for the preparation of 1 and details of the bulk electrolysis.