Nanotube effect on a liquid-phase photoreaction in mesoporous silica

Journal of Physical Chemistry B

Volumn 105, Issue 38, 2001, Pages 9101-9106

  Konishi, Yoshinari ^a,b   Okazaki, Masaharu ^a   Toriyama, Kazumi ^a   Kasai, Toshio ^c  

^a NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY AIST   (Japan)

^b NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY AIST   (Japan)

^c INSTITUTE FOR MOLECULAR SCIENCE   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

MESOPOROUS SILICA;

ALCOHOLS; DIFFUSION; MAGNETIC FIELDS; MESOPOROUS MATERIALS; NANOTUBES; PORE SIZE; SILICA; SOLVENTS;

PHOTOCHEMICAL REACTIONS;

EID: 0035960184     PISSN: 10895647     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp010899m     Document Type: Article

References (40)

1. Kresge, C.T.; Leonowicz, M.E.; Roth, W.J.; Vartuli, J.C.; Beck, J.S. Nature 1992, 359, 710.
2. Yanagisawa, T.; Shimizu, T.; Kuroda, K.; Kato, C. Bull. Chem. Soc. Jpn. 1990, 63, 988.
3. Coma, A. Chem. Rev. 1997, 97, 2373.
4. Krishna, R.M.; Prakash, A.M.; Kevan, L. J. Phys. Chem. B 2000, 104, 1796.
5. Takeguchi, T.; Kim, J.-B.; Kang, M.; Inui, T.; Cheuh, W.-T.; Haller, G.L. J. Catal. 1998, 175, 1.
6. Baretz, B.H.; Turro, N.J. J. Am. Chem. Soc. 1983, 105, 1309.
7. Lei, X.; Doubleday, C.E., Jr.; Zimmt, M.B.; Turro, N.J. J. Am. Chem. Soc. 1986, 108, 2444.
8. Turro, N.J.; Wan, P. J. Am. Chem. Soc. 1985, 107, 678.
9. Levin, P.P.; Costa, S.M.B.; Ferreira, L.F.V. J. Phys. Chem. 1996, 100, 15171.
10. Cozens, P.L.; Bogdanova, R.; Regimbald, M.; Garcia, H.; Marti, V.; Scaiano, J.C. J. Phys. Chem. B 1997, 101, 6921.
11. Sabater, M.J.; Garcia, S.; Alvaro, M.; Garcia, H.; Scaiano, J.C. J. Am. Chem. Soc. 1998, 120, 8521.
12. Ruetten, S.A.; Thomas, J.K. Langmuir 2000, 16, 234.
13. We define microporous and mesoporous materials as those which have pores with diameters of 0.05-10 μm and 1-50 nm, respectively.
14. Zhao, X.S.; Lu, G.O.; Whittaker, A.K.; Millar, G.J.; Zhu, H.Y. J. Phys. Chem. 1997, 101, 6525.
15. Hansen, E.W.; Schmidt, R.; Stoeker, M.; Akporiaye, D. Microporous Mesoporous Mater. 1995, 5, 143.
16. Mao, Z.; Sinnott, S.B. J. Phys. Chem. B 2000, 104, 4618.
17. 2 for the pressure to cause the solution to flow in a tube with a length of 1 μm.
18. Okazaki, M. In Dynamic Spin Chemistry; Nagakura, S., Hayashi, H., Azumi, T., Eds.; Kodansha: Tokyo, and Wiley: New York, 1998; Chapter 8.
19. Okazaki, M.; Konishi, Y.; Toriyama, K. Chem. Phys. Lett. 2000, 328, 251.
20. Tanimoto, Y.; Fujiwara, Y.; Nakagaki, R. In Dynamic Spin Chemistry; Nagakura, S., Hayashi, H., Azumi, T., Eds.; Kodansha: Tokyo, and Wiley: New York, 1998; Chapter 3.
21. Burkett, S.L.; Sims, S.D.; Mann, S. Chem. Commun. 1996, 1367.
22. Handbook of Chemistry, Volume for Applied Chemistry; Japan Chemical Society: Japan; p 257.
23. Tanimoto, Y.; Takashima, M.; Itoh, M. J. Phys. Chem. 1984, 88, 6053.
24. Salikhov, K.M.; Molin, Yu.N.; Sagdeev, R.Z.; Buchachenko, A.L. Spin Polarization and Magnetic Effect in Radical Reactions; Elsevier: Amsterdam, 1984.
25. Turro, N.J.; Cheng, C.-C.; Mahler, W. J. Am. Chem. Soc. 1984, 106, 5022.
26. Coherent mixing between S and To is possible since this mixing is due to adiabatic terms, e.g., the difference in the g-factors of the two radicals.
27. Carrington, A.; McLachlan, A.D. Introduction to Magnetic Resonance; Harper & Row: New York, 1967; Chapter 11.
28. Brocklehurst, B. Nature 1969, 221, 921.
29. Brocklehurst, B. J. Chem. Soc., Faraday Trans. 2 1976, 72, 1869.
30. Hayashi, H.; Nagakura, S. Bull. Chem. Soc. Jpn, 1984, 57, 322.
31. Okazaki, M.; Tai, Y.; Nunome, K.; Toriyama, K.; Nagakura, S. Chem. Phys. 1992, 161, 177.
32. We have to pack the MCM powder tight enough into the column to make the space between particles as narrow as possible.
33. Okazaki, M.; et al. To be published.
34. 2 molecule, where r is the radius of the nanotube. The averaged distance from the excited XO molecule is about one-half of l.
35. This is the case particularly for ethanol radical, since it has a hydrogen nuclei at the α position from the radical center, which generates a large fluctuating magnetic field and accelerates the spin relaxation.
36. Berliner, L.J., Ed. Spin Labeling; Academic Press: NewYork, 1976.
37. In a very rigorous discussion on the molecular motion from its ESR spectrum, we should pay attention to small, unresolved hyperfine couplings with the tert-butyl protons. However, it is not necessary in the rough estimate made here. See also: Okazaki, M.; Kuwata, K. J. Phys. Chem. 1984, 88, 4181.
38. Smimov, P.; Yamaguchi, T.; Kittaka, S.; Takahara, S.; Kuroda, Y. J. Phys. Chem. B 2000, 104, 5498.
39. Kukla, V.; Kornatowski, J.; Demuth, D.; Girnus, I.; Pfeifer, H.; Rees, L.V.C.; Schunk, S.; Unger, K.K.; Kaerger, J. Science 1996, 272, 702.
40. Nishi, N.; Koga, K.; Ohshima, C.; Yamamoto, K.; Nagashima, U.; Nagami, K. J. Am. Chem. Soc. 1988, 110, 5246.